JP2020093911A - Passenger conveyor - Google Patents

Abstract

To provide a passenger conveyor capable of easily adjusting pressing force of driven rollers arranged in a line in a configuration where a handrail belt is driven by being sandwiched between driving rollers arranged in a line and the driven rollers.SOLUTION: Two driven rollers 74 are provided on each of two pairs of first connection plates 108 and 110. Both end parts of second connection plates 112 are respectively mounted on center parts of the two pairs of first connection plates 108 and 110. A moving part supports and presses the center parts of the second connection plates 112 against the side of driving rollers 72.SELECTED DRAWING: Figure 2

Description

Embodiments of the present invention relate to passenger conveyors.

For passenger conveyors such as escalators and moving walkways, models with narrow steps have a small space inside the truss, and handrail belts cannot cross the truss, so they are placed above the truss. Therefore, it is not possible to put the handrail belt in the truss and drive it by winding it with the belt sprocket. Has been adopted.

Japanese Utility Model Publication No. 61-148877 JP-A-5-208789 JP, 2000-198658, A

However, in the belt driving device as described above, it is necessary to adjust the pressing force of the driven rollers arranged in a line one by one, which causes a problem that the work is troublesome.

In view of the above problems, the embodiment of the present invention has a structure in which a handrail belt is sandwiched and driven by driving rollers arranged in a row and driven rollers arranged in a row, and the pressing force of the driven rollers can be easily adjusted. The purpose is to provide.

The embodiment of the present invention is a truss arranged in the front-rear direction, a plurality of steps connected endlessly and traveling along the truss, and a pair of left and right balustrades erected on both left and right sides of the step, An endless handrail belt that circulates from the upper part to the lower part of the balustrade, and a belt driving device for the handrail belt disposed inside the balustrade, the belt driving device having a cross section C. N (4=>n) driving rollers abutting on the inner peripheral surface of the V-shaped handrail belt, abutting on the outer peripheral surface of the handrail belt, and vertically paired with the respective driving rollers. n driven rollers, m (m=>2) pairs of first connecting plates to which 2 or 3 of the n driven rollers are attached in a line, and A second connecting plate that rotatably and integrally connects the first connecting plate of the set, a moving portion that rotatably supports the second connecting plate, and the moving portion is pressed to the drive roller side. And a pair of first connecting plates that rotatably sandwich the respective driven rollers, and the second connecting plates are connected to a central portion of each of the first connecting plates. The moving portion is provided between the plurality of driven rollers arranged in a line, and the mounting position of the second connecting plate and the moving portion is provided in correspondence with the number of the driven rollers that are present sandwiching the moving portion. Is the passenger conveyor that is set.

The side surface explanatory view of the escalator of one embodiment of the present invention. The perspective view of a belt drive device. The left side view of a belt drive device. Sectional drawing on the AA line in FIG. Sectional drawing in the BB line in FIG. FIG. 6 is a diagram illustrating a driving method of a driving roller.

A passenger conveyor according to an embodiment of the present invention will be described with reference to FIGS. In this embodiment, the escalator 10 will be described as a passenger conveyor.

(1) Escalator 10
The structure of the escalator 10 will be described based on FIG. FIG. 1 is an explanatory view of the escalator 10 viewed from the side.

A truss 12, which is a framework of the escalator 10, is supported by using 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 at the upper end of the truss 12, there are provided a drive device 18 for traveling the steps 30, a pair of left and right step sprockets 24, 24, and a pair of left and right belt sprockets 27, 27. The drive device 18 stops the rotation of a motor 20, 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 the rotation of the motor 20. And a disc brake that holds the state. The drive chain 22 rotates the pair of left and right stepped sprockets 24, 24. The pair of left and right stepped sprockets 24, 24 and the pair of left and right belt sprockets 27, 27 are connected by a connecting belt (not shown) and rotate in synchronization. Further, inside the machine room 14 on the upper floor side, a control unit 50 that controls the motor 20, the disc brake, and the like is provided.

A pair of left and right step driven sprockets 26, 26 are provided in the lower floor machine room 16 at the lower end of the truss 12. A pair of left and right endless step chains 28, 28 are bridged between the pair of left and right step sprocket 24, 24 on the upper floor and the pair of left and right step driven sprockets 26, 26 on the lower floor. A plurality of steps 30 are attached to the pair of left and right step chains 28, 28 at equal intervals. When the motor 20 rotates, the front wheels 301 of the steps 30 travel on a guide rail (not shown) fixed to the truss 12, and the rear wheels 302 travel on the guide rail 25 fixed to the truss 12.

A pair of left and right balustrades 36, 36 are erected on the left and right sides of the truss 12. A handrail rail 39 is provided above the balustrade 36, and an endless handrail belt 38 moves along the handrail rail 39. The front skirt guard 40 on the upper floor side is provided on the lower front side of the balustrade 36, and the front skirt guard 42 on the lower floor side is provided on the lower front side on the lower floor side. Inlet portions 46 and 48, which are the entrances and exits of the handrail belt 38, respectively project.

A skirt guard 44 is provided on 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, 56 and speakers 54, 58 are provided on the inner surfaces of the skirt guards 44 on the upper and lower floors, respectively.

The pair of left and right handrail belts 38 respectively enter the front skirt guard 40 from the inlet portion 46 on the upper floor side, and each handrail belt 38 is driven based on the belt drive device 70 driven by the belt sprocket 27. After that, it moves inside the skirt guard 44 and appears outside the front skirt guard 42 from the inlet 48 on the lower floor side. Then, the handrail belt 38 moves in synchronization with the step 30 as the belt sprocket 27 rotates together with the step sprocket 24. The belt drive device 70 will be described in detail later.

A boarding/alighting board 32 on the upper floor side is horizontally provided on the ceiling surface of the machine room 14, which is a boarding/alighting entrance of a pair of left and right skirt guards 44, 44 on the upper floor side. At the entrance of the pair of left and right skirt guards 44, 44 on the lower floor side, a lower floor entry/exit plate 34 is horizontally provided on the ceiling surface of the machine room 16. A comb tooth-shaped comb 60 is provided at the tip of the boarding board 32 on the upper floor side, and the step 30 enters the comb 60. A comb-teeth comb 62 is also provided at the tip of the boarding board 34 on the lower floor side.

(2) Belt drive device 70
Next, the belt driving device 70 will be described with reference to FIGS. The belt drive device 70 is provided corresponding to each of the pair of left and right handrail belts 38, and the belt drive device 70 on the right side when viewed from the upper floor will be described below. In this case, the left side of the belt driving device 70 is the step 30 side. The handrail belt 38 is assumed to travel laterally from right to left in FIGS. 2 and 3. Further, the left belt driving device 70 has a bilaterally symmetrical structure with the right belt driving device 70.

First, as shown in FIG. 4, the handrail belt 38 is made of rubber or urethane rubber and has a C-shaped cross section. The handrail belt 38 is curved from the central flat portion and both left and right sides of the flat portion. And both ends that extend.

As shown in FIG. 1, the belt driving device 70 is provided above the truss 12, that is, inside the skirt guard 44. As shown in FIGS. 2 to 4, a support base 86 is fixed to the upper surface of the right frame body 64 that constitutes the upper portion of the truss 12. The support base 86 has a base 88 fixed to the frame 64, a support portion 90 standing upright from the right end of the base 88, and a pressing plate 92 protruding leftward from the upper surface of the support portion 90. ing. As shown in FIG. 5, a protrusion 100 is formed on the left side of the support 90 in the vertical direction.

As shown in FIGS. 2 to 4, the substrate 78 is attached to the right surface of the support portion 90 in the vertical direction by bolts (not shown).

As shown in FIGS. 2 to 5, a moving portion 96 is arranged on the left surface of the support portion 90. As shown in FIG. 5, a groove 98 is formed in the moving portion 96 in the vertical direction, and the protrusion 100 is formed. Is engaged with. As a result, the moving portion 96 is movable in the vertical direction with respect to the support portion 90, but does not move in the front-back direction.

As shown in FIGS. 2 to 4, a male screw portion 102 is vertically provided between the moving portion 96 and the pedestal 88 in a vertical direction. A nut 104 is screwed onto the male screw portion 102. A coil-shaped spring 106 is vertically arranged on the outer periphery of the male screw portion 102, and is provided between the nut 104 and the moving portion 96. The spring 106 biases the moving portion 96 upward. However, the moving portion 96 is restricted by the pressing plate 92 so as not to move upward more than a certain amount.

As shown in FIGS. 2 and 3, four drive rollers 72 are arranged in a row on the upper portion of the substrate 78 so as to be rotatable in a row. An upside-down handrail belt 38 is running below it. Further, the support base 86 is located at the lower part of the center of the four drive rollers 72.

In FIG. 3, an auxiliary chain sprocket 80 is rotatably provided between the second and third drive rollers 72, 72 from the left.

As shown in FIGS. 2 and 3, a driven roller 74 is rotatably arranged below the four drive rollers 72, and the drive roller 72 and the driven roller 74 form an upper and lower pair. Is sandwiched between. 2 and 3, the left two driven rollers 74, 74 are rotatably supported by both sides of the left and right driven rollers 74, 74 by a first connecting plate 108 which is a pair of left and right rollers. That is, as shown in FIG. 5, the pair of left and right first connecting plates 108 rotatably sandwich the rotating shafts 109, 109 of the two driven rollers 74, 74 between the pair of left and right first connecting plates 108, 108. Support.

In FIG. 3, the rotary shafts 111, 111 of the two right driven rollers 74, 74 are also rotatably supported by the pair of first connecting plates 110, 110.

A second connecting plate 112 that is long in the lateral direction is rotatably attached to the left side surface of the support portion 90 via a central shaft 114. One end of the second connecting plate 112 is attached via a connecting shaft 116 at the center of the pair of first connecting plates 108, and the other end of the second connecting plate 112 is at the center of the pair of second connecting plates 112. It is rotatably attached via a connecting shaft 118.

When the moving portion 96 is urged upward by the urging force of the spring 106, the second connecting plate 112 is urged upward, and at the same time, the first connecting plate 108 and the first connecting plate 110 are also urged upward. As a result, the four driven rollers 74 press the handrail belt 38 against the respective drive rollers 72 with a uniform pressing force.

The handrail belt 38 runs between the four driving rollers 72 and the driven rollers 74 in a state of being turned upside down, and the four driving rollers 72 are the inner circumference of the handrail belt 38 having a C-shaped cross section. The four driven rollers 74 come into contact with the outer peripheral surface of the handrail belt 38.

When adjusting the pressing force of the four driven rollers 74, if the nut 104 is moved upward, the urging force of the spring 106 becomes stronger and the pressing force becomes stronger, and conversely, the nut 104 is attached to the male screw portion 102. On the other hand, when it is moved downward, the biasing force of the spring 106 is weakened and the biasing forces of the four driven rollers 74 are also reduced. In this case, the urging force of all the driven rollers 74 can be adjusted by adjusting only one spring 106. For example, when the urging force of one driven roller 74 is F, the respective first connecting plates 108 and 110 need to be pressed with a force of 2F, and for that purpose, the second connecting plate 112 is 4F. The spring 106 is adjusted to be pressed by the force.

(3) Driving Method for Driving Rollers 72 Next, a structure for driving the four driving rollers 72 will be described with reference to FIGS. 2, 3, and 6.

Four chain sprockets 76 are provided on a substrate 78 coaxially with the drive roller 72. An auxiliary chain sprocket 80 is rotatably provided on the base plate 78 between the second chain sprocket 76 and the third chain sprocket 76.

As shown in FIG. 6, the guide chain sprocket 82 is rotatably provided between the belt sprocket 27 and the chain sprocket 76.

An endless belt drive chain 84 is mounted on the belt sprocket 27, the guide chain sprocket 82, the upper portions of the first and second chain sprockets 76, the lower portion of the auxiliary chain sprockets 80, and the upper portions of the third and fourth chain sprockets 76. Has been passed. 2 and 3, the belt drive chain 84 is omitted.

When the step sprocket 24 for running the step 30 rotates, the belt sprocket 27 rotates in synchronization with the connecting belt (not shown), which drives the belt drive chain 84 to drive the four chain sprockets 76 and the auxiliary chain sprockets 80. Rotates. When the four chain sprockets 76 rotate, the four drive rollers 72 also rotate. As a result, the four drive rollers 72 rotate in synchronization with the rotation speed of the step sprocket 24.

Note that this structure is merely an example, and the structure for rotating the drive roller 72 may be another structure.

(4) Effect According to the present embodiment, since the four driving rollers uniformly press the handrail belt 38 by the single spring 106, it is necessary to adjust the pressing force of each driven roller as in the conventional case. There is no need for maintenance work.

Further, unlike the conventional case, the structure for adjusting the pressing force of each driven roller 74 becomes unnecessary, so that the number of parts and the cost can be reduced.

(5) Modification 1
In the above-described embodiment, the four driven rollers 74 are described, but in the present modification, the case where the handrail belt 38 is pressed by the five driven rollers 74 will be described.

Three driven rollers 74 are rotatably attached to the first connecting plates 108 and 108 of the first set, and two driven rollers 74 are rotatably attached to the first connecting plates 110 and 110 of the second set.

One end of the second connecting plate 112 is rotatably connected to the central part of the first connecting plate 108 of the first set, and the other end of the second connecting plate 112 is the central part of the first connecting plate 110 of the second set. Rotatably attached to.

The central shaft 114 that rotatably supports the second connecting plate 112 has a ratio of the distance from the central shaft 114 to one end of the second connecting plate 112 to the ratio of the distance from the central shaft 114 to the other end of the second connecting plate 112. 2 to 3.

As a result, the force pressed upward by the moving portion 96 is evenly distributed to the three driven rollers 74 and the two driven rollers 74, and the handrail belt 38 is pressed uniformly by the five driving rollers 74. 72 can be pressed.

(6) Modification 2
Although the coil-shaped spring 106 is described as the pressing unit in the above embodiment, a solenoid may be used.

(7) Others In the above-described embodiment, the escalator 10 is used for description, but it may be applied to a moving sidewalk instead.

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 forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the scope equivalent thereto.

10... Escalator, 12... Truss, 70... Belt driving device, 72... Driving roller, 74... Followed roller, 78... Substrate, 86... Supporting base, 106... -Spring, 108... First connecting plate, 110... First connecting plate, 112... Second connecting plate

The embodiment of the present invention is a truss arranged in the front-rear direction, a plurality of steps connected endlessly and traveling along the truss, and a pair of left and right balustrades erected on both left and right sides of the step, An endless handrail belt that circulates from the upper part to the lower part of the balustrade, and a belt driving device for the handrail belt disposed inside the balustrade, the belt driving device having a cross section C. N (n=>4) driving rollers abutting on the inner peripheral surface of the V-shaped handrail belt, abutting on the outer peripheral surface of the handrail belt, and paired up and down with the respective driving rollers. n driven rollers, m (m=>2) pairs of first connecting plates to which 2 or 3 of the n driven rollers are attached in a line, and A second connecting plate that rotatably and integrally connects the first connecting plate of the set, a moving portion that rotatably supports the second connecting plate, and an upper portion of the moving portion that is on the drive roller side. And n pressing rollers are arranged side by side in a line, and m pairs of the left and right first connecting plates sandwich the driven rollers rotatably. Rutotomoni, arranged in a straight line, is connected the second connecting plate to a central portion of each of said first connecting plate Rutotomoni, the second connecting plate is arranged to overlap the m sets of the first connecting plate The moving portion is provided between the plurality of driven rollers arranged in a line, and the moving portion is provided between the second connecting plate and the moving portion in correspondence with the number of the driven rollers that sandwich the moving portion. It is a passenger conveyor where the mounting position is set.

Claims (8)

With trusses arranged in the front-back direction,
Endlessly connected, a plurality of steps running along the truss,
A pair of left and right balustrades erected on both left and right sides of the steps,
An endless handrail belt that circulates around the lower part of the balustrade,
A belt driving device for the handrail belt disposed inside the balustrade,
Have
The belt drive is
N (4=>n) driving rollers abutting on the inner peripheral surface of the handrail belt having a C-shaped cross section,
N driven rollers which are in contact with the outer peripheral surface of the handrail belt and which are vertically paired with the drive rollers,
a pair of left and right first connecting plates of m (m=>2) sets in which 2 or 3 of the n driven rollers are attached in a line;
A second connecting plate that rotatably and integrally connects the first connecting plates of all the sets;
A moving part for rotatably supporting the second connecting plate,
Pressing means for pressing the moving portion toward the drive roller,
Have
The pair of first connecting plates rotatably sandwiches the respective driven rollers,
The second connecting plate is connected to the central portion of each of the first connecting plates,
The moving unit is provided between the plurality of driven rollers arranged in a line,
The attachment positions of the second connecting plate and the moving portion are set corresponding to the number of the driven rollers that are present with the moving portion interposed therebetween.
Passenger conveyor. There are four driven rollers,
The two driven rollers are respectively attached to the two sets of the first connecting plates,
Central portions of the two sets of the first connecting plates are attached to both ends of the second connecting plate,
The moving portion supports a central portion of the second connecting plate,
The passenger conveyor according to claim 1. The number of driven rollers is 5,
The three driven rollers are attached to the first connecting plate of the first set,
The two driven rollers are attached to the first connecting plate of the second set,
One end of the second connecting plate is attached to a central portion of the first connecting plate of the first set,
The other end of the second connecting plate is attached to the central portion of the first connecting plate of the second set,
Distance from the central part of the second connecting plate to the central part of the first connecting plate of the first set, and distance from the central part of the second connecting plate to the central part of the first connecting plate of the second set And the moving part supports the second connecting plate such that
The passenger conveyor according to claim 1. A support base is provided on the upper part of the truss,
A substrate is vertically provided on the support base,
A plurality of the drive rollers are provided on the substrate in a row in a lateral direction,
Below the plurality of drive rollers, and the driven rollers are laterally arranged in a row across the handrail belt that travels laterally,
The moving unit moves up and down along the support base,
The pressing unit is provided between the moving unit and the support base,
The passenger conveyor according to claim 1. The support base is provided with a regulation unit that regulates the upward movement of the moving unit by a certain amount or more.
The passenger conveyor according to claim 4. The pressing means is a coiled spring,
The passenger conveyor according to claim 1. The pressing means is a solenoid,
The passenger conveyor according to claim 1. The passenger conveyor is an escalator or a moving walkway,
The passenger conveyor according to claim 1.

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