WO2007123089A1

WO2007123089A1 - Passenger conveyor device

Info

Publication number: WO2007123089A1
Application number: PCT/JP2007/058289
Authority: WO
Inventors: Takayuki Kikuchi; Satoshi Takasawa; Shin Murakami
Original assignee: Toshiba Elevator Kabushiki Kaisha
Priority date: 2006-04-19
Filing date: 2007-04-16
Publication date: 2007-11-01
Also published as: JP5132078B2; CN101426712A; JP2007284225A; CN101426712B

Abstract

A passenger conveyor device having a conveyor chain (7) connecting link plates (8) by using connection shafts (9) and circulating between two sprockets, a guide rail laid along the circulation direction of the conveyor chain (7) and having a curve section projecting in a mountain-like shape, guide rollers (10) attached to the link plates (8) and moving engaged with the guide rail, and a pressing rail placed on the outer peripheral side of that portion of the guide rail that is in a region facing the curve section. A fixed section (12a) provided at a tread section (12) is fixed to an edge section (8a) on the outer peripheral side of a link plate (8), and the height from the edge section (8a) to the surface (12b) of the outer peripheral side of the fixed section (12a) is set to a level that does not cause the fixed section (12) to come into contact with the pressing rail.

Description

Specification

Passenger conveyor equipment

Technical field

The present invention relates to a passenger conveyor device such as a moving sidewalk or an escalator.

Background art

[0002] Passenger conveyor devices such as moving walkways and escalators include a plurality of stepped portions on which passengers ride and a pair of endless conveyor chains to which these stepped portions are connected. The compare chain is stretched between a pair of sprockets provided on the entrance side and the exit side. Then, the sprocket is rotationally driven by a driving device such as a motor, so that the stepping portion circulates between the entrance and the exit along with the conveyor chain.

[0003] The step portion and the conveyor chain are connected by fixing the fixing portions provided at both ends of the step portion to the outer peripheral side edge of the link plate of the conveyor chain.

[0004] The conveyor chain is formed by connecting a plurality of link plates by a plurality of connecting shafts. Guide rollers are attached to all of the connecting shafts or every other connecting shaft. The guide rollers are engaged with guide rails installed along the circulation movement direction of the conveyor chain. When the guide roller is engaged with the guide rail, the stepped portion is prevented from being displaced in the vertical direction when the stepped portion is circulated together with the conveyor chain.

[0005] By the way, in recent years, there is a demand for space saving of the installation space of the passenger conveyor device, and in order to meet this demand, it is effective to use a sprocket having a small diameter and a small number of teeth. However, if a sprocket with a small diameter and a small number of teeth is used, the stepping portion moves in the straight direction of the compare chain due to the so-called polygonal effect that occurs when traveling along the compare chain S sprocket. It is known to oscillate back and forth along.

[0006] A passenger conveyor device that suppresses such a polygonal effect and prevents the occurrence of longitudinal vibrations of a stepped portion is known (see Patent Document 1 or 2). This passenger conveyor device is formed near the sprocket in the guide rail so that it protrudes in a mountain shape. Has a bent portion. Further, a presser rail is disposed in a region facing the bent portion and on the outer peripheral side of the bent portion, and the guide roller is sandwiched between the guide rail and the presser rail. Since the guide rail with the bent part bypasses the link fulcrum of the conveyor chain according to the speed change of the step part, it compensates for the speed unevenness due to the polygonal effect.

Patent Document 1: Japanese Patent Laid-Open No. 2003-252560

Patent Document 2: Japanese Unexamined Patent Application Publication No. 2004-2007

Disclosure of the invention

Problems to be solved by the invention

[0007] However, in the above-described passenger conveyor, the following points are not considered.

[0008] When suppressing the longitudinal vibration of the stepping portion using a guide rail formed with a bent portion protruding in a chevron shape, when the guide roller passes through the bent portion, it moves up and down so as to come in contact with and away from the bent portion. As a result, the phenomenon of collision between the presser rail and the guide rail occurs. This phenomenon becomes prominent on the lower side of the sprocket, which is the side where gravity acts on the guide roller in the direction away from the guide rail.

[0009] When the guide roller flutters in the vertical direction and collides with the presser rail or the guide rail, it causes abnormal vibration and noise in the stepping portion. Therefore, they give discomfort to passenger conveyor users.

[0010] In order to prevent the guide roller from fluttering in the vertical direction, the distance between the guide rail and the presser rail is reduced so that the guide roller does not flutter between the guide rail and the presser rail. Is effective.

[0011] In the case of a structure in which the fixing portion of the stepping portion is fixed to the outer peripheral side edge of the link plate with a pressing force, the guide roller can be reduced by reducing the clearance dimension between the guide rail and the holding rail. When passing through the bend, the fixed part will come into contact with the rail. When such a contact occurs, an abnormal noise is generated from the contact portion, and the guide rail and the stepped portion deteriorate due to wear due to the contact.

[0012] For this reason, the clearance dimension between the guide rail and the holding rail is set to the outer diameter dimension of the guide roller. It has been realized to make it as small as the law.

In view of such problems, an object of the present invention is to provide a guide device including a guide rail having a guide rail having a mountain-shaped bent portion in order to suppress back-and-forth vibration of the stepping portion. To provide a passenger conveyor device in which the size of the gap between the presser rails is reduced to the outer diameter of the guide rollers and the guide rollers can be prevented from fluttering up and down between the guide rails and the presser rails. There is.

Means for solving the problem

[0014] A first feature according to the embodiment of the present invention is that, in the passenger conveyor device, a plurality of link plates and a connecting shaft that connects these link plates are provided and spanned between two sprockets. And the endless conveyor chain that circulates and moves, a plurality of stepped portions connected to the conveyor chain, and the circulation direction of the conveyor chain are arranged along the direction of circulation of the conveyor chain. Directional force A guide rail that is located in a region that switches in the arc direction along the outer periphery of the sprocket and has a bent portion that projects in a mountain shape toward the outer peripheral side of the circulation movement path, and is attached to the link plate, A plurality of guide rollers that engage with the rail and move, and a region that faces the bent portion and is disposed on the outer peripheral side of the guide rail And the step of connecting the stepped portion to the conveyor chain is performed by fixing a fixing portion provided on the stepping portion to an outer peripheral side edge portion of the link plate. The height dimension from the outer peripheral side edge portion to the outer peripheral side surface of the fixed portion is set to a size such that the fixed portion does not contact the presser rail.

The invention's effect

[0015] According to the present invention, even when the gap between the guide rail having the bent portion and the holding roller is made as small as the outer diameter of the guide roller, the fixing portion of the stepping portion is in contact with the holding roller. As a result, it is possible to prevent abnormal vibration and noise of the treading part caused by the guide roller fluttering in the vertical direction and colliding with the rail or the guide rail.

Brief Description of Drawings

FIG. 1 is a side view showing an overall configuration of a passenger conveyor device according to a first embodiment of the present invention. It is.

FIG. 2 is an enlarged side view showing a part of the passenger conveyor device.

FIG. 3 is an enlarged side view showing a part of the guide rail.

FIG. 4 is an enlarged side view showing a part of the conveyor chain.

FIG. 5 is an enlarged side view showing a part of a conveyor chain in a passenger conveyor device according to a second embodiment of the present invention.

FIG. 6 is an enlarged side view showing a part of a guide rail in a passenger conveyor device according to a third embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0018] (First embodiment)

As shown in FIG. 1, the moving sidewalk which is the passenger conveyor apparatus according to the first embodiment of the present invention has a truss 1 installed in the horizontal direction. The truss 1 is housed in a concave pit formed below the road surface. In the truss 1, a pair of driven sprockets 3 located on the entrance 2 side, a pair of driving sprockets 5 located on the descending door 4 side, and a rotation that transmits driving force to the driving sprocket 5 A driving device 6 is provided.

An endless compare chain 7 is stretched between the drive-side sprocket 5 and the driven-side sprocket 3. Two conveyor chains 7 are provided, and one conveyor chain 7 is stretched between one set of sprockets 3 and 5. The other conveyor chain 7 is stretched between the other pair of sprockets 3 and 5. Two sets of sprockets 3, 5 and two conveyor chains 7 are arranged in parallel positions in the horizontal direction. Figure 1 shows one sprocket 3, 5 and one conveyor chain 7.

[0020] The conveyor chain 7 includes a plurality of link plates 8 that are positioned in parallel and form a pair, and a plurality of connecting shafts 9 that connect the end portions of the link plates 8 to each other. A roller 10 that serves as both a conveyor roller and a guide roller is attached to the connecting shaft 9 so as to be positioned between a pair of link plates 8. On the outer peripheral surface of the roller 10, the teeth 11 of the sprockets 3 and 5 are in contact with each other. With the teeth 11 of the sprockets 3 and 5 meshing with the outer peripheral surface of the roller 10 When the rotation drive device 6 is driven, the sprocket 5 is driven to rotate, and the conveyor chain 7 circulates between the entrance 2 and the exit 4.

A plurality of treads 12 are connected between the two conveyor chains 7. The tread part 1 2 is exposed on the road surface and is a part that carries the user of the moving sidewalk and carries it from the entrance 2 to the exit 4. In order to connect the step 12 to the conveyor chain 7, fixing portions 12 a provided at both ends of the step 12 are fixed to the outer peripheral side edge 8 a of the link plate 8 by bolting or the like.

In the truss 1, a guide rail 13 extending along the direction of circulation movement of the conveyor chain 7 is disposed. Each of the guide rails 13 is also configured with one individual central guide rail 13a and two end guide rails 13b. A support member la is fixed to the truss 1 with a bolt or the like. The center guide rail 13a and the end guide rail 13b are fixed to the support member la by bolts 14. Two bent portions 15 are formed on the end guide rail 13b, which is a part of the guide rail 13, respectively. The bent portion 15 is positioned in a region where the force in the circulation movement direction of the conveyor chain 7 is switched from the linear direction to the arc direction along the outer circumference of the sprockets 3 and 5, and toward the outer circumference side of the circulation movement path of the conveyor chain 7. It is formed in a shape that protrudes in a mountain shape. When the conveyor chain 7 circulates, the roller 10 engages with the guide rail 13 and moves.

Furthermore, the presser rails 16 and 17 are fixed to the truss 1. The presser rail 16 is disposed above the conveyor chain 7 and on the outer peripheral side of the guide rail 13 in a region facing the bent portion 15. The presser rail 16 is provided on each of the sprocket 3 side and the sprocket 5 side. The presser rail 17 is disposed on the outer peripheral side of the guide rail 13 in the region facing the bent portion 15 on the lower side of the conveyor chain 7. The presser rail 17 is formed continuously between the sprocket 3 and the sprocket 5. The vertical gap between the presser rails 16 and 17 and the guide rail 13 is set to be slightly larger than the outer diameter of the roller 10.

[0024] As described above, the fixing portion 12a provided in the stepping portion 12 is fixed to the outer peripheral side edge portion 8a of the link plate 8. At this fixed location, as shown in FIG. 4, the height dimension “A” from the outer peripheral edge 8a of the link plate 8 to the outer peripheral surface 12b of the fixed portion 12a is set. This height dimension "A" is used when the conveyor chain 7 circulates The fixed portion 12a is set to a size that does not contact the rails 16 and 17. For example, the tangent line “a” extending in parallel to the outer peripheral edge 8a of the link plate 8 to which the roller 10 is attached from the outer peripheral surface of the roller 10 and the outer peripheral edge 8a are fixed. The clearance dimension “B” between the fixed portion 12a and the outer peripheral surface 12b is 60% or more of the height dimension “C” of the bent portion 15 shown in FIG.

With respect to the link plate 8, as shown in FIG. 4, a middle line “b” including the attachment position of the connecting shaft 9 to the link plate 8 and extending in parallel with the outer peripheral edge 8a of the link plate 8 Is defined as “D” from the middle line “b” to the outer peripheral edge 8a of the link plate 8 and “dimension” from the middle line “b” to the inner peripheral edge 8b of the link plate 8 “E”. "And are set equal.

[0026] When the rotary drive device 6 operates in such a configuration, the drive-side sprocket 5 is driven to rotate. Further, when the sprocket 5 is driven to rotate, the conveyor chain 7 circulates and moves together with the step 12 between the two sprockets 3 and 5. The direction of circulation movement of the conveyor chain 7 and the tread 12 is shown as an arrow “X” in FIG. In this direction, the user who rides on the tread 12 moves from the entrance 2 toward the exit 4. It should be noted that the moving sidewalk can be switched between the entrance and exit positions. In that case, the circulating movement direction of conveyor chain 7 and tread 12 is opposite to the direction indicated by arrow "X".

When the conveyor chain 7 circulates between the sprockets 3 and 5, the roller 10 is engaged with the guide rail 13 and moves. The guide rail 13 has a bending portion 15 formed in the vicinity of the sprockets 3 and 5 and in a region where the circulating movement direction of the conveyor chain 7 is switched to the arc direction along the outer periphery of the linear force sprockets 3 and 5. ing. For this reason, when the compare chain 7 turns around the sprockets 3 and 5, it is possible to prevent the occurrence of longitudinal vibration along the circulating movement direction of the step 12.

[0028] In the region where the presser rails 16 and 17 are provided, the vertical clearance between the presser rails 16 and 17 and the guide rail 13 is set to be slightly larger than the outer diameter of the roller 10. Has been. For this reason, when the roller 10 passes through the bent portion 15, it is prevented that the roller 10 flutters in the vertical direction so as to be in contact with and separated from the bent portion 15 before and after the roller 10. Furthermore, the roller 10 that flutters in the vertical direction collides with the rails 16, 17 and the guide rail 13. This is prevented. Therefore, it is possible to prevent noise and abnormal vibration in the tread 12 that occur when the roller 10 flutters in the vertical direction and collides with the holding rails 16, 17 and the guide rail 13.

In addition, the gap dimension “B” between the tangent line “a” of the outer peripheral surface of the roller 10 and the outer peripheral surface 12b of the fixed portion 12a fixed to the outer peripheral edge portion 8a of the link plate 8 is It is set to 60% or more of the height dimension “C” of the bent part 15. As a result, even when the vertical clearance between the presser rails 16 and 17 and the guide rail 13 is set to be slightly larger than the outer diameter of the roller 10, the roller 10 passes through the bent portion 15. Thus, it is possible to prevent the fixing portion 12a from coming into contact with the rails 16 and 17.

[0030] Therefore, when the conveyor chain 7 and the stepping portion 12 are circulated, it is possible to prevent the roller 10 from flapping in the vertical direction and colliding with the presser rail 16 or the guide rail 13. Shika also prevents the fixed portion 12a from coming into contact with the presser rails 16 and 17.

[0031] According to the first embodiment, the guide rail 13 is composed of one central guide rail 13a and two end guide rails 13b, each of which is a central guide rail. 13 a and the end guide rail 13 b are connected by a bolt 14. However, the guide rail may be integrally formed. Alternatively, it may be a two-part structure in which the end guide rail 13b is connected to only one side.

[0032] (Second Embodiment)

A second embodiment of the present invention will be described with reference to FIG. Note that, in the second embodiment and subsequent embodiments, the same components as those described in the first embodiment are denoted by the same reference numerals, and redundant descriptions are omitted.

[0033] In a moving sidewalk that is a passenger conveyor device according to the second embodiment, an endless conveyor chain 7A is stretched between a pair of sprockets 3, 5 (see FIG. 1).

[0034] The conveyor chain 7A includes a plurality of link plates 21 that are arranged in parallel and form a pair, and a plurality of connecting shafts 9 that connect the end portions of the link plates 21 to each other. The connecting shaft 9 is provided with a roller 10 that serves as both a conveyor roller and a guide roller, and is positioned between a pair of link plates 21. [0035] Two conveyor chains 7A are arranged in parallel positions in the horizontal direction. A plurality of treads 22 are connected between the two conveyor chains 7A. In order to connect the step portion 22 to the conveyor chain 7A, fixing portions 22a provided at both ends of the step portion 22 are fixed to the outer peripheral side edge portion 21a of the link plate 21 by bolting or the like.

[0036] With regard to the link plate 21, if a center line "b" extending parallel to the outer peripheral side edge 21a of the link plate 21 including the attachment position of the connecting shaft 9 to the link plate 21 is defined, this center line The dimension “F” from “b” to the outer peripheral edge 21a of the link plate 21 is set smaller than the dimension “G” from the center line “b” to the inner peripheral edge 21b of the link plate 21. .

[0037] The outer peripheral surface force of the roller 10 is also a tangent line "a" extending parallel to the outer peripheral side edge 21a of the link plate 21 to which the roller 10 is coupled, and a fixed part fixed to the outer peripheral side edge 21a. If the gap dimension between the outer peripheral surface 22b of 22a and the outer edge 22a of the link plate 21 is defined as the height 'H' to the outer peripheral surface 22b of the fixed portion 22a Therefore, the tangent line “a” and the gap dimension “B” without reducing the height “H” can be 60% or more of the height dimension “C” of the bent portion 15.

In such a configuration, according to the second embodiment, the operation described in the first embodiment can be obtained. Furthermore, since the height dimension “H” of the fixing portion 22a can be increased, the strength of the connecting portion of the step portion 22 to the conveyor chain 7A can be increased.

It should be noted that the outer peripheral side edge portion 21a of the present embodiment shows a shape in which a concave portion is formed by denting the central portion in the longitudinal direction at the edge portion of the link plate 21. However, the shape of the outer peripheral edge portion 21a is not limited to such a concave shape, but is a flat shape in which the dimension “F” from the center line “b” is like in the entire longitudinal direction of the link plate 21. May be formed

[0040] (Third embodiment)

A third embodiment of the present invention will be described with reference to FIG.

[0041] In a moving sidewalk that is a passenger conveyor device according to the third embodiment, a guide rail 31 is provided in the truss 1 along the direction of circulation movement of the conveyor chain 7. Guide rail 31 consists of one individual center guide rail 31a and two end guides Rail 31b. Further, end guide rails 3 lb are fixed to both ends of the center guide rail 3 la by bolts. The is part end guide rail 3 lb of the guide rail 31, song force ^s Ri portion 15 formed to protrude chevron toward the outer circumferential side of the circulation path of movement of Konbeachi over emissions 7 2 It is provided one by one. In the guide rail 31, the height from the respective regions to the top of the bent portion 15 is set to be different from the front and rear regions sandwiching the bent portion 15. For example, the height “I” up to the top of the bent portion 15 with respect to the region on the opposite side of the sprockets 3 and 5 across the bent portion 15 is the bent portion with respect to the region on the sprockets 3 and 5 across the bent portion 15. The height to the top of is set smaller than "J".

In such a configuration, according to the third embodiment, the operation described in the first embodiment can be obtained. Further, since the heights of the regions before and after the bent portion 15 in the guide rail 31 are different, when the roller 10 passes through the bent portion 15, the speed change of the roller 10 can be suppressed. It is possible to suppress flapping in the vertical direction.

Industrial applicability

[0043] According to the passenger conveyor device of the present invention, even when the gap between the guide rail having the bent portion and the holding roller is made as small as the outer diameter of the guide roller, the fixed portion of the stepping portion is suppressed. Contact with the roller can be prevented. As a result, it is possible to prevent abnormal vibrations and noise from occurring in the stepped portion caused by the guide roller flapping in the vertical direction and colliding with the presser rail or the guide rail. Furthermore, it is possible to prevent deterioration of the guide rail and the stepped portion due to wear due to contact.

Claims

The scope of the claims

[1] An endless conveyor chain that has a plurality of link plates and a connecting shaft that connects these link plates and circulates between two sprockets;

A plurality of stepped portions connected to the conveyor chain;

It is arranged along the circulation movement direction of the conveyor chain, and is located in a region where the circulation movement direction of the conveyor chain is switched from a linear direction to an arc direction along the outer circumference of the sprocket, and toward the outer circumference side of the circulation movement path. A guide rail with a bent portion protruding in a mountain shape,

A plurality of guide rollers attached to the link plate and engaged and moved with the guide rail;

An armored lenore disposed in an outer peripheral side of the guide rail in a region facing the bent portion;

With

The connection of the stepped portion to the conveyor chain is performed by fixing a fixing portion provided on the stepping portion to an outer peripheral side edge portion of the link plate,

Height dimensional force from the outer peripheral side edge of the link plate to the outer peripheral side surface of the fixed portion The passenger conveyor device is characterized in that the fixed portion is set to a size that does not contact the presser rail.

[2] The outer peripheral surface force of the guide roller also includes a tangent line extending in parallel with the outer peripheral side edge of the link plate to which the guide roller is attached, and the fixed portion fixed to the outer peripheral side edge. 2. The passenger conveyor device according to claim 1, wherein a gap between the outer peripheral surface and the outer peripheral surface is 60% or more of a height of the bent portion.

[3] The link plate includes a dimension from a middle line extending in parallel with the outer peripheral side edge of the link plate to the outer peripheral side including the mounting position of the guide roller on the link plate, The passenger conveyor device according to claim 1 or 2, wherein a dimension to the inner peripheral side edge of the link plate is set to be equal.

[4] The link plate includes an outer peripheral side edge extending from a middle line extending in parallel with the outer peripheral side edge portion of the link plate including an attachment position of the guide roller on the link plate. 3. The passenger conveyor device according to claim 1, wherein the dimensional force to a portion is set to be smaller than the size to the inner peripheral side edge portion of the link plate.

2. The passenger conveyor device according to claim 1, wherein the guide rail has different vertical height dimensions in front and rear regions sandwiching the bent portion.