JP6873966B2 - Passenger conveyor - Google Patents

Description

An embodiment of the present invention relates to a passenger conveyor.

In passenger conveyors such as escalators and moving walkways, models with narrow steps are placed above the truss because the space inside the truss is small and the handrail belt cannot straddle the truss. Therefore, it is not possible to put the handrail belt in the truss and wind it with a belt sprocket to drive it, and the handrail belt is a belt drive device that runs between the drive roller and the driven roller in a row above the truss. It has been adopted.

Jikkai Sho 61-148877 Japanese Unexamined Patent Publication No. 5-208789 Japanese Unexamined Patent Publication No. 2000-198658

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

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

In the embodiment of the present invention, a truss arranged in the front-rear direction, a plurality of steps connected in an endless manner and running along the truss, and a pair of left and right balustrades erected on both left and right sides of the step. It has an endless handrail belt that circulates from the upper part to the lower part of the balustrade, and a belt drive device for the handrail belt arranged inside the balustrade, and the belt drive device has a cross section C. N (n => 4) drive rollers that abut on the inner peripheral surface of the character-shaped handrail belt and n (n => 4) drive rollers that abut on the outer peripheral surface of the handrail belt and are vertically paired with each drive roller. A pair of left and right substantially rectangular first connecting plates of m (m => 2) pairs in which n driven rollers and two or three driven rollers among the n driven rollers are mounted in a row. A substantially rectangular second connecting plate that rotatably and integrally connects all the sets of the first connecting plate, a moving portion that rotatably supports the second connecting plate, and the moving portion. It has a pressing means for pressing upward on the drive roller side, n of the drive rollers are arranged side by side in a row, and a pair of left and right first connecting plates of m sets are respectively driven. The rollers are rotatably sandwiched along the longitudinal direction and arranged in a straight line, and the second connecting plate is connected to the central portion of each of the first connecting plates, and the second connecting plate is connected in the longitudinal direction of the second connecting plate. The first connecting plate of m sets is arranged so as to overlap with each other on the extension line of the above, and the moving portion is provided between a plurality of the driven rollers arranged in a row and exists so as to sandwich the moving portion. It is a passenger conveyor in which mounting positions of the second connecting plate and the moving portion are set according to the number of driven rollers.

The side explanatory view of the escalator of one Embodiment of this invention. Perspective view of the belt drive device. Left side view of the belt drive device. FIG. 3 is a cross-sectional view taken along the line AA in FIG. FIG. 3 is a cross-sectional view taken along the line BB in FIG. The figure explaining the driving method of the driving roller.

The passenger conveyor according to the embodiment of the present invention will be described with reference to FIGS. 1 to 6. 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 with reference to FIG. FIG. 1 is an explanatory view of the escalator 10 as viewed from the side.

The truss 12, which is the framework of the escalator 10, is supported by the support angles 2 and 3 across the upper and lower floors 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 step sprockets 24, 24, and a pair of left and right belt sprockets 27, 27 are provided. The drive device 18 stops and stops the rotation of the motor 20, the speed reducer, the output sprocket attached to the output shaft of the speed reducer, the drive chain 22 driven by the output sprocket, and the motor 20. It has a disc brake that holds the state. The drive chain 22 rotates a pair of left and right step sprockets 24, 24. The pair of left and right step 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 pair of left and right step-driven sprockets 26, 26 are provided in 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 bridged between the pair of left and right step sprockets 24, 24 on the upper floor side and the pair of left and right step driven sprockets 26, 26 on the lower floor side. 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 step 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 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 endless handrail belt 38 moves along the handrail rail 39. The front skirt guard 40 on the upper floor side is provided in the lower front part on the upper floor side of the balustrade 36, and the front skirt guard 42 on the lower floor side is provided in the lower front part on the lower floor side. The inlet portions 46 and 48, which are the entrances and exits of the handrail belt 38, project respectively.

A 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 pair of left and right handrail belts 38 invade 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 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 step sprocket 24. The belt drive device 70 will be described in detail later.

The entrance / exit of the pair of left and right skirt guards 44, 44 on the upper floor side, and the entrance / exit plate 32 on the upper floor side is horizontally provided on the ceiling surface of the machine room 14. A pair of left and right skirt guards 44, 44 on the lower floor side are used as entrances and exits, and a lower floor side entrance / exit plate 34 is horizontally provided on the ceiling surface of the machine room 16. A comb-shaped comb 60 is provided at the tip of the boarding / alighting plate 32 on the upper floor side, and the step 30 invades the comb 60. A comb-shaped comb 62 is also provided at the tip of the boarding / alighting plate 34 on the lower floor side.

(2) Belt drive device 70
Next, the belt drive device 70 will be described with reference to FIGS. 1 to 5. The belt drive device 70 is provided corresponding to 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 drive device 70 is the step 30 side. Then, it is assumed that the handrail belt 38 travels laterally from right to left in FIGS. 2 and 3. Further, the belt driving device 70 on the left side has a symmetrical structure with the belt driving device 70 on the right side.

First, as shown in FIG. 4, the handrail belt 38 is made of rubber or urethane rubber and has a C-shaped cross section, and is curved from a flat portion in the center and both left and right sides of the flat portion. It consists of both ends extending like this.

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, the support base 86 is fixed to the upper surface of the right frame 64 that constitutes the upper part of the truss 12. The support base 86 has a pedestal 88 fixed to the frame body 64, a support portion 90 erected upward from the right end of the pedestal 88, and a holding plate 92 protruding to the left from the upper surface of the support portion 90. ing. As shown in FIG. 5, a ridge 100 is formed in the vertical direction of the left surface of the support portion 90.

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

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

As shown in FIGS. 2 to 4, a male screw portion 102 is vertically erected between the moving portion 96 and the pedestal 88. A nut 104 is screwed into the male screw portion 102. A coil-shaped spring 106 is arranged in the vertical direction on the outer circumference of the male screw portion 102, and is provided between the nut 104 and the moving portion 96. The spring 106 urges the moving portion 96 upward. However, the moving portion 96 is regulated by the pressing plate 92 so as not to move upward beyond a certain level.

As shown in FIGS. 2 to 3, four drive rollers 72 are rotatably arranged in a row on the upper portion of the substrate 78 in the lateral direction. The handrail belt 38, which is upside down, runs below it. Further, the support base 86 is located at the lower 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 to 3, below the four drive rollers 72, driven rollers 74 are rotatably arranged, and the drive rollers 72 and the driven rollers 74 are vertically paired with each other, and the handrail belt 38 is formed. Is sandwiched. In FIGS. 2 and 3, both sides of the two driven rollers 74, 74 on the left side are rotatably supported by a first connecting plate 108 in which a pair of left and right rollers is paired. That is, as shown in FIG. 5, the pair of left and right first connecting plates 108 rotatably sandwich the rotation shafts 109, 109 of the two driven rollers 74, 74 between the pair of left and right first connecting plates 108, 108. Supports.

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

A second connecting plate 112, which is long in the lateral direction, is rotatably attached to the left side surface of the support portion 90 via the central shaft 114. One end of the second connecting plate 112 is attached via a connecting shaft 116 at the central portion of the pair of first connecting plates 108, and the other end of the second connecting plate 112 is attached to the central portion of the pair of second connecting plates 112. It is rotatably attached via the 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 each drive roller 72 with an even pressing force.

Then, the handrail belt 38 travels between the four drive rollers 72 and the driven roller 74 in a state of being turned upside down, and the four drive rollers 72 are the inner circumferences of the handrail belt 38 having a C-shaped cross section. The four driven rollers 74 abut on the surface and abut on 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 the spring 106 is moved downward, the urging force of the spring 106 becomes weaker, and the urging force of the four driven rollers 74 also becomes smaller. Then, in this case, the urging force of all the driven rollers 74 can be adjusted only by adjusting one spring 106. For example, when the urging force of one driven roller 74 is F, each of the first connecting plates 108 and 110 needs to be pressed by the force of 2F, and for that purpose, the second connecting plate 112 is pressed on the 4th floor. Adjust so that the spring 106 is pressed by the force of.

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

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

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 spans the belt sprocket 27, the guide chain sprocket 82, the top of the first and second chain sprockets 76, the bottom of the auxiliary chain sprocket 80, and the top of the third and fourth chain sprockets 76. Has been passed. Note that the description of the belt drive chain 84 is omitted in FIGS. 2 and 3.

When the step sprocket 24 that runs the step 30 rotates, the belt sprocket 27 rotates synchronously by a connecting belt (not shown), whereby the belt drive chain 84 is driven, and the four chain sprocket 76 and the auxiliary chain sprocket 80 are driven. 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 drive rollers evenly press the handrail belt 38 by one spring 106, it is necessary to adjust the pressing force of each driven roller as in the conventional case. There is no such thing, and the work of maintenance personnel becomes easier.

Further, since the structure for adjusting the pressing force of each driven roller 74 is not required as in the conventional case, the number of parts can be reduced and the cost can be reduced.

(5) Change example 1
In the above embodiment, the four driven rollers 74 have been described, but in this modified example, 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 portion of the first connecting plate 108 of the first set, and the other end of the second connecting plate 112 is the central portion of the first connecting plate 110 of the second set. It attaches to the rotatably.

The central shaft 114 that rotatably supports the second connecting plate 112 determines the ratio of the distance from the central shaft 114 to one end of the second connecting plate 112 to the distance from the central shaft 114 to the other end of the second connecting plate 112. Make it 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 by the five driving rollers evenly. Can be pressed to 72.

(6) Change example 2
In the above embodiment, the coiled spring 106 has been described as the pressing means, but it may be a solenoid.

(7) Others Although the above embodiment has been described by applying it to the escalator 10, it may be applied to a moving walkway 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 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, 12 ... Truss, 70 ... Belt drive device, 72 ... Drive roller, 74 ... Driven roller, 78 ... Board, 86 ... Support stand, 106 ... -Spring, 108 ... 1st connecting plate, 110 ... 1st connecting plate, 112 ... 2nd connecting plate

Claims (8)

The trusses arranged in the front-back direction and
A plurality of steps that are connected endlessly and run along the truss,
A pair of left and right balustrades erected on both the left and right sides of the step,
An endless handrail belt that circulates from the top to the bottom of the balustrade,
The belt drive device of the handrail belt arranged inside the balustrade, and
Have,
The belt drive device
N (n => 4) drive rollers that come into contact with the inner peripheral surface of the handrail belt having a C-shaped cross section, and
N driven rollers that are in contact with the outer peripheral surface of the handrail belt and are vertically paired with each of the driving rollers.
A pair of left and right substantially rectangular first connecting plates of an m (m => 2) set in which two or three of the driven rollers of the n driven rollers are mounted in a row,
A substantially rectangular second connecting plate that rotatably and integrally connects all the sets of the first connecting plate,
A moving portion that rotatably supports the second connecting plate, and
A pressing means for pressing the moving portion upward on the drive roller side, and
Have,
The n drive rollers are arranged side by side in a row.
The pair of left and right first connecting plates of the m set rotatably sandwich each of the driven rollers along the longitudinal direction and are arranged in a straight line.
The second connecting plate is connected to the central portion of each of the first connecting plates, and m sets of the first connecting plates are arranged so as to overlap with each other on an extension line in the longitudinal direction of the second connecting plate. Being done
The moving portion is provided between the plurality of driven rollers arranged in a row.
The mounting position between the second connecting plate and the moving portion is set according to the number of the driven rollers existing across the moving portion.
Passenger conveyor. There are four driven rollers,
Two of the driven rollers are attached to the two sets of the first connecting plates, respectively.
Two sets of central portions of the first connecting plate are attached to both ends of the second connecting plate, respectively.
The moving portion supports the central portion of the second connecting plate.
The passenger conveyor according to claim 1. The number of driven rollers is 5,
Three driven rollers are attached to the first connecting plate of the first set, and the driven rollers are attached.
Two of the driven rollers are attached to the first connecting plate of the second set.
One end of the second connecting plate is attached to the 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.
The distance from the central portion of the second connecting plate to the central portion of the first set of the first connecting plates and the distance from the central portion of the second connecting plate to the central portion of the first connecting plate of the second set. The moving portion supports the second connecting plate so that the position is 2: 3.
The passenger conveyor according to claim 1. A support base is provided on the upper part of the truss.
A substrate is provided on the support base in the vertical direction.
A plurality of the driving rollers are provided in a row on the substrate in the lateral direction.
The driven rollers are arranged in a row in the lateral direction below the plurality of the driving rollers and sandwiching the handrail belt traveling in the lateral direction.
The moving portion moves up and down along the support base, and moves up and down.
The pressing means is provided between the moving portion and the support base.
The passenger conveyor according to claim 1. The support base is provided with a regulatory means for restricting the movement of the moving portion above a certain level.
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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