JP6781240B2 - Handrail belt and passenger conveyor using it - Google Patents

Description

An embodiment of the present invention relates to a handrail belt of a passenger conveyor and a passenger conveyor using the same.

Conventionally, the hardness of the handrail belt of passenger conveyors such as escalators and moving walkways is constant in all parts. For example, the hardness of the handrail belt made of chlorosulfonized polyethylene is 65 to 80 (Hs), and the hardness of the handrail made of polyurethane. The hardness of the belt is 80 to 90 (Hs).

Japanese Unexamined Patent Publication No. 2008-105814

However, when the hardness of the handrail belt is high, the bending rigidity is high, which causes a problem that the running resistance is increased and the mechanical efficiency is not good.

Therefore, it is an object of the present invention to provide a handrail belt capable of reducing the bending rigidity of the handrail belt and reducing running resistance in view of the above problems, and a passenger conveyor using the handrail belt.

An embodiment of the present invention is a handrail belt having a C-shaped vertical cross section, and has a flat plate-shaped central portion extending in the longitudinal direction and a pair of left and right extending while bending from both left and right sides of the lower surface of the central portion. A pair of left and right covering portions that cover the left and right sides of the upper surface of the central portion and the outer periphery of the curved portion, and a recess is formed between the pair of left and right covering portions of the central portion. A handrail belt in which the upper surface is exposed and the hardness of the covering portion is lower than the hardness of the central portion and the hardness of the curved portion.

Another embodiment of the present invention is a passenger conveyor having the handrail belt.

The side explanatory view of the passenger conveyor which shows Embodiment 1 of this invention. A vertical sectional view of a handrail belt running on a handrail rail. A vertical cross-sectional view of a handrail belt that runs between a belt sprocket and a pressing roller. The vertical sectional view of the handrail belt of Embodiment 2.

Hereinafter, the escalator 10 according to the embodiment of the present invention will be described with reference to the drawings.

Embodiment 1

Hereinafter, the escalator 10 of the first embodiment will be described with reference to FIGS. 1 to 3.

(1) Escalator 10
The structure of the escalator 10 will be described with reference to FIG. FIG. 1 is an explanatory view of the escalator 10 as viewed from the side.

As shown in FIG. 1, the truss 12 which is the framework of the escalator 10 is supported in the front-rear direction by using the support angles 2 and 3 across the upper floor and the lower floor of the building 1.

Inside the machine room 14 on the upper floor side at the upper end of the truss 12, a drive device 18 for traveling the step 30, a pair of left and right main drive sprockets 24, 24, and a pair of left and right belt sprockets 27, 27 are provided. .. The drive device 18 includes a motor 20 including an induction motor (induction motor), a speed reducer, an output sprocket attached to the output shaft of the speed reducer, a drive chain 22 driven by the output sprocket, and rotation of the motor 20. It has a disc brake that stops the motor and keeps the stopped state. The drive chain 22 rotates the main drive sprocket 24. The pair of left and right main drive sprockets 24, 24 and the pair of left and right belt sprockets 27, 27 are connected by a connecting belt (not shown) and rotate synchronously. Further, inside the machine room 14 on the upper floor side, a control unit 50 for controlling a motor 20, a disc brake, and the like is provided.

A driven sprocket 26 is provided inside the machine room 16 on the lower floor side at the lower end of the truss 12. A pair of left and right endless step chains 28, 28 are hung between the main drive sprocket 24 on the upper floor side and the driven sprocket 26 on the lower floor side. That is, the wheels 301 of the plurality of steps 30 are attached to the pair of left and right step chains 28, 28 at equal intervals. The wheels 301 of the step 30 travel along a guide rail (not shown) fixed to the truss 12, and engage with a recess on the outer periphery of the main drive sprocket 24 and a recess on the outer periphery of the driven sprocket 26. The step 30 is turned upside down. Further, the wheels 302 travel on the guide rail 25 fixed to the truss 12.

A pair of left and right skirt guards 44, 44 and a pair of left and right balustrades 36, 36 are erected on both the left and right sides of the truss 12. A handrail rail 39 is provided on the upper part of the balustrade 36, and the handrail belt 38 moves along the handrail rail 39. The front skirt guard 40 on the upper floor is provided in the lower front on the upper floor side of the balustrade 36, and the front skirt guard 42 on the lower floor is provided in the lower front on the lower floor side. The inlet portions 46 and 48, which are the entrances and exits of the handrail belt 38, project respectively. The skirt guard 44 is provided at the lower part of the side surface of the balustrade 36, and the step 30 runs between the pair of left and right skirt guards 44, 44. Operation panels 52 and 56 and speakers 54 and 58 are provided on the inner surfaces of the skirt guards 44 on the upper and lower floors, respectively.

The handrail belt 38 invades the front skirt guard 40 from the inlet portion 46 on the upper floor side, is hung on the belt sprocket 27 via the guide roller group 64, and then is hung on the belt sprocket 27 via the guide roller group 66, and then the skirt guard 44 via the guide roller group 66. It moves inside and appears outside the front skirt guard 42 from the inlet portion 48 on the lower floor side. Then, the handrail belt 38 moves in synchronization with the step 30 by rotating the belt sprocket 27 together with the main drive sprocket 24. Further, the rotating belt sprocket 27 has a pressing member 68 provided with a plurality of pressing rollers 70 for pressing the traveling handrail belt 38.

A plurality of boarding / alighting plates 32 on the upper floor side are horizontally mounted on the entrance / exit on the ceiling surface of the machine room 14 on the upper floor side, and the entrance / exit on the ceiling surface of the machine room 16 on the lower floor side is provided. A plurality of boarding / alighting boards 34 on the lower floor side are horizontally placed. Further, a comb-shaped comb 60 is provided at the tip of the boarding / alighting plate 32 closest to the step 30, a step 30 appears from the comb 60, and a comb-shaped comb 62 is also provided on the boarding board 34 closest to the step 30. It is provided.

(2) Handrail belt 38
Next, the handrail belt 38 will be described with reference to FIGS. 2 and 3.

As shown in FIG. 2, the handrail belt 38 has a C-shaped vertical cross-sectional shape, the opening portion faces downward when traveling on the handrail rail 39, and the figure shows when traveling inside the skirt guard 44. As shown in 3, the opening portion is turned upside down and faces upward.

As shown in FIGS. 2 and 3, the C-shaped handrail belt 38 has a pair of left and right curved portions 382 extending from both left and right sides of the lower surface of the plate-shaped central portion 381 extending in the longitudinal direction. The central portion 381 and the pair of left and right curved portions 382 are integrally formed. The left and right sides of the central portion 381 and the left and right sides of the pair of left and right curved portions 382 are exposed to the outside. A plurality of core wires 387 are embedded along the longitudinal direction in the center of the inside of the central portion 381. The integrally formed central portion 381 and the pair of left and right curved portions 382 are made of, for example, chlorosulphonized polyethylene or polyurethane, and have a hardness of 65 to 90 (Hs).

As shown in FIGS. 2 and 3, a pair of left and right ridges 383 project from the left and right sides of the upper surface of the central portion 381, and between the pair of left and right ridges 383 and 383, that is, above the center of the central portion 381. A recess 384 is formed. From the upper surface of the ridge portion 383 on the left side to the recess 384 and the ridge portion 383 on the right side, there is a gentle inclined surface. A pair of left and right extending portions 385 project from the lower surfaces of the pair of left and right curved portions 382 and 382. The hardness of the pair of left and right ridges 383 and the pair of left and right extension portions 385 is lower than the hardness of the central portion 381 and the pair of left and right curved portions 382, and is 15 to 40 (Hs).

As shown in FIGS. 2 and 3, canvas 386 is provided on the inner peripheral surfaces of the central portion 381, the pair of left and right curved portions 382, and the pair of left and right extending portions 385.

When the handrail belt 38 passes through the handrail rail 39 as shown in FIG. 2 and enters the inside of the skirt guard 44, the handrail belt 38 is turned upside down as shown in FIG. 3 and presses against the belt sprocket 27. It passes between the pressing rollers 70 provided on the member 68. In this case, the belt sprocket 27 is brought into contact with the lower surface of the central portion 381 that is turned upside down and faces upward, and the pressing roller 70 of the pressing member 68 is placed between the pair of left and right ridge portions 383 and 383. It fits into a certain recess 384, and the central portion 381 is turned upside down and comes into contact with the upper surface facing downward.

(3) Effect In the present embodiment, the hardness of the handrail belt 38 is high in the central portion 381 and the pair of left and right curved portions 382, and the cross-sectional shape of the central portion 381 is substantially plate-shaped. The flexural rigidity is reduced, the running resistance is reduced when passing through the handrail rail 39, and the energy saving of the drive device 18 for rotating the belt sprocket 27 can be achieved.

Further, the portion where the belt sprocket 27 and the pressing roller 70 come into contact with each other is a central portion 381 having high hardness, and is therefore durable.

Further, since the belt sprocket 27 rotates so as to fit into the recess 384 between the pair of left and right ridges 383 and 383, the handrail belt 38 is stable even if the handrail belt 38 swings to both the left and right sides. 38 can be run.

Further, when the ridge portion 383 is held by hand, a finger can be placed on the recessed portion 384, so that the handrail belt 38 can be stably grasped.

Embodiment 2

Next, the handrail belt 38 of the escalator 10 of the second embodiment will be described with reference to FIG.

As shown in FIG. 4, the vertical cross-sectional shape of the handrail belt 38 of the present embodiment is C-shaped, and is curved from the left and right sides of the flat plate-shaped central portion 381 extending in the longitudinal direction and the lower surface of the central portion 381. However, it has a pair of left and right curved portions 382 that extend integrally. Further, a plurality of core wires 387 are embedded in the center of the inside of the central portion 381 in the longitudinal direction.

As shown in FIG. 4, it has a pair of left and right covering portions 388 that cover the left and right sides of the upper surface of the central portion 381 and the outer periphery of the pair of left and right curved portions 382, and a recess 384 is formed between the pair of left and right covering portions 388. The upper surface of the central portion 381 is exposed. The hardness of the covering portion 388 is formed to be lower than the hardness of the central portion 381 and the pair of left and right curved portions 382.

Even in this embodiment, the bending rigidity of the handrail belt 38 is reduced and the running resistance is reduced, which saves energy.

Further, since the portion where the belt sprocket 27 and the pressing member 68 come into contact with each other is the central portion 381 having high hardness, it is durable.

Further, since the handrail belt portion held by the passenger is a soft covering portion 388, it is easy to hold.

Change example

In the above embodiment, the handrail belt 38 is driven by a plurality of pressing rollers 70 with respect to one belt sprocket 27, but a plurality of belt drive rollers arranged in a row are arranged in a row. The structure may be such that the handrail belt 38 is pressed by using the pressing roller of. In this case, the driving belt drive roller abuts on the lower surface of the central portion 381 which is upside down and faces upward, and the pressing roller is the upper surface of the central portion 381 which is upside down and faces downward. To abut.

Further, in the above embodiment, the description has been made by applying to the step 30 of the escalator 10, but instead of this, it may be applied to the step (step) of the moving walkway.

Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10 ... escalator, 38 ... handrail belt, 381 ... central part, 382 ... curved part, 383 ... ridge part, 384 ... concave part, 385 ... extension part, 386 ... canvas, 387 ... core wire

Claims (6)

A handrail belt with a C-shaped vertical cross section
A flat plate-shaped central part extending in the longitudinal direction,
A pair of left and right curved portions extending from both left and right sides of the lower surface of the central portion while being curved,
A pair of left and right covering portions covering the left and right sides of the upper surface of the central portion and the outer circumference of the curved portion,
Have,
A recess is formed between the pair of left and right covering portions, and the upper surface of the central portion is exposed.
The hardness of the covering portion is lower than the hardness of the central portion and the hardness of the curved portion.
Handrail belt. A core wire is embedded in the central portion in the longitudinal direction.
The handrail belt according to claim 1 . The material of the central portion and the curved portion is chlorosulfonized polyethylene or polyurethane.
The handrail belt according to claim 1 . The handrail belt according to claim 1 is provided.
Passenger conveyor. The belt sprocket abuts on the upward-facing lower surface of the central portion of the handrail belt that is turned upside down, and the pressing roller abuts on the downward-facing upper surface.
The passenger conveyor according to claim 4 . The belt drive roller abuts on the upwardly facing lower surface of the central portion of the handrail belt that is turned upside down, and the pressing roller abuts on the upper surface that faces downward.
The passenger conveyor according to claim 4 .

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