JP2007084208A - Footstep roller for passenger conveyor, footstep chain for passenger conveyor and passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a footstep roller capable of bear loads applied to the footstep roller of a conveyor type footstep chain and reducing vibration in the traveling direction without increasing the size of a truss and the number of teeth of a footstep sprocket, the footstep chain using the footstep roller and a passenger conveyor. <P>SOLUTION: The footstep roller 4 for the passenger conveyor 1 using the conveyor type footstep chain 11 is rotatably provided in a side end part of a footstep 3, and is also used as a roller of the conveyor type footstep chain 11 combined with link plates 12, 13 and connecting the footsteps 3. The footstep roller 4 is provided with a bearing part 4a rotatably fitted to a shaft provided in the side end part of the footstep 3 and with an outer peripheral part fixed to the outer peripheral face of the bearing part 4a and comprising a plurality of members 4c, 4d with different hardness in the width direction of the roller 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a passenger roller step roller, a passenger conveyor step chain, and a passenger conveyor.

  Passenger conveyors such as escalators and moving walkways include a plurality of steps provided with step rollers on the front and rear. Each of these steps has a step rail mounted on a guide rail disposed between the entrance and exit in the truss so that it can roll, and the step surface on which the passengers transported on the outbound side get on is leveled. In this manner, each step roller rolls on the step guide rail while receiving the load of the step so as to circulate between the entrance and the exit. Usually, a plurality of steps are connected by an endless step chain, and by driving the step chain, all the steps are configured to move synchronously and without gaps.

  As a conventional step roller, there is a step roller that is attached to a rotating shaft that protrudes from a side surface of a step body, and is disposed on the outer side of the roller-type step chain as viewed from the step body. In such a step roller, the load applied to the step is all handled by the step roller. An example of such a step roller is shown in FIG. FIG. 5 is an explanatory diagram of a conventional step roller. FIG. 2A is a front view of the step roller 101, and the step roller 101 is rotatably attached to one end of a rotating shaft 102 that protrudes from the step body. Further, as shown in the plan view of FIG. 4B and the side view of FIG. 4C, the step roller 101 is disposed on the outer side as seen from the step than the step chain 103 passing through the rotating shaft 102. ing.

  In a passenger conveyor that transports passengers between the upper floor side and the lower floor side like an escalator, the step rollers are between the bent part of the guide rail on the upper floor side, that is, between the inclined part and the horizontal part of the guide rail. At the curved connection part, not only the load of the step but also the load due to the tension of the step chain is received. The load due to the tension of the step chain increases as the floor height of the escalator increases. Therefore, it is necessary to avoid the step roller from being damaged by the load received at the bent portion of the upper-level guide rail.

  In order to prevent the step roller from being damaged at the bent portion, a passenger having a resin or steel rail disposed in the range of the bent portion so as to contact the lower side of the step chain roller adjacent to the step roller. There is a conveyor. In such a passenger conveyor, when the allowable load of the step roller is exceeded, the load applied to the step roller is handled by the roller of the roller type step chain so that an excessive load is not applied to the step roller. An example of this will be described with reference to FIG. FIG. 6 is a cross-sectional view of the step roller and the roller-type step chain at the bent portion cut along a line AA in FIG. 5B. In the figure, a step roller 101 includes a bearing portion 101a fitted to the rotating shaft 102, a metal member 101b fixed to the outer peripheral side of the bearing portion, and rubber or resin fixed to the outer peripheral surface of the metal member 101b. And an outer peripheral member 10c made of metal. A step chain 103 is rotatably attached to the rotating shaft 102 adjacent to the step roller 101. The step chain 103 includes a steel roller 103a and plates 103b and 103c provided on both sides of the roller 103a. A rail 104 made of resin or steel is provided so as to be in contact with the lower surface of the roller 103a of the step chain 103, and the rail 104 is responsible for the load of the step.

  Further, as another measure for avoiding damage to the step roller at the bent portion, Patent Document 1 provides an auxiliary guide mechanism made of resin at the bent portion of the guide rail, and the load on the step by the auxiliary guide mechanism. The passenger conveyor which bears a part of is disclosed.

  As described above, in the passenger conveyor in which the step roller is provided outside the step chain separately from the step chain, the meshing with the step sprocket that drives the step chain is performed by the steel roller of the roller type step chain. Because it takes charge, the amount of deformation at the time of meshing is small, and it is possible to reduce vibration in the step traveling direction.

  In recent years, the use of conveyor-type step chains is increasing as an inexpensive step chain from the viewpoint of cost reduction. In this conveyor type step chain, a step roller also serves as a roller of the step chain, and chain link plates are disposed on both side surfaces of the step roller to constitute a conveyor chain. Therefore, in the passenger conveyor using the conveyor type step chain, it is not necessary to separately provide a step chain, and it can be manufactured at a lower cost, and space can be provided on both sides of the step in the truss. . On the other hand, in the passenger conveyor using the conveyor type step chain, since the step chain is not provided separately from the step roller, when the load exceeds the allowable load of the step roller at the bent portion of the guide rail, It is impossible to dispose a resin or steel rail as in the case of using a roller-type step chain in the range of the bent portion or to provide an auxiliary guide mechanism made of resin.

  Therefore, conventionally, in a passenger conveyor using a conveyor-type step chain, it has been performed to increase the curvature radius of the bent portion of the guide rail on which the step roller runs. As the radius of curvature increases, the load applied to each step roller that also serves as a roller for the conveyor-type step chain decreases.

Further, in the conveyor type step chain, the step roller is engaged with the step sprocket at the turn-up portion, and the driving force is transmitted. It had been. As a measure for preventing the damage of the roller due to the static load generated in such a meshing portion, the load applied from the sprocket to the step roller by increasing the number of teeth of the step sprocket is less than the allowable load of the step roller.
JP 2003-95569 A

  In a passenger conveyor using a conveyor-type step chain in which the step roller also serves as a roller for the conveyor-type step chain, if the curvature of the bent portion of the guide rail is increased, the size of the truss in the height direction is increased. Further, when the number of teeth of the step sprocket is increased, it is necessary to increase the sprocket diameter in accordance with the number of teeth, so that the size of the truss in the height direction is also increased.

  In recent years, passenger conveyors have been desired to reduce the size of the truss in order to increase the degree of freedom of installation. Therefore, even when using conveyor-type step chains, It is desired to reduce the diameter of the sprocket to be accommodated, and it is not desirable to increase the curvature of the bent portion of the guide rail or increase the number of teeth of the step sprocket.

  Further, the rollers of the conveyor-type step chain are made of resin over the entire width of the rollers in order to reduce vibration when traveling on the guide rails. When such a roller meshes with a step sprocket and a driving force is transmitted, the outer periphery made of resin is elastically deformed, causing vibration in the traveling direction.

  The present invention advantageously solves the above-mentioned problem, and does not increase the size of the truss or increase the number of teeth of the step sprocket, so that the load applied to the step roller of the conveyor-type step chain can be reduced. It is an object of the present invention to provide a step roller that can endure and can reduce vibration in the traveling direction, a step chain using the step roller, and a passenger conveyor.

  The step roller of the passenger conveyor of the present invention is a roller of a conveyor-type step chain that connects the steps, and is a step roller that is rotatably provided at a side end portion of the step and guides the step, A bearing portion that is fitted to a shaft provided at a side end portion of the step; and an outer peripheral portion that is fixed to the outer peripheral surface of the bearing portion and includes a plurality of members having different hardness in the width direction of the roller. Features.

  Further, the step chain of the passenger conveyor according to the present invention has a bearing portion fitted to a shaft provided at a side end portion of the step, and is fixed to an outer peripheral surface of the bearing portion, and has different hardness in the width direction of the roller. A step roller having an outer peripheral portion made of a plurality of members and a link plate rotatably attached to both side surfaces of the step roller are provided.

  Further, the passenger conveyor of the present invention has a plurality of steps, a step roller rotatably provided at a side end portion of the step, and a link plate rotatably attached to both side surfaces of the step roller. An endless step chain for connecting the steps, a step sprocket provided around the step chain, a step sprocket for winding the step chain, and a movement path of the step chain leading to the sprocket, A guide rail that rolls a step roller and guides the step, and a conveyor-type step chain that is arranged adjacent to the bent portion formed in the guide rail in the immediate vicinity of the sprocket and moves in parallel with the guide rail. And a load receiving guide in contact with the lower surface of the link plate.

  According to the step roller of the passenger conveyor of the present invention, it is possible to withstand the load applied to the step roller of the passenger conveyor using the conveyor type step chain. Therefore, the step chain and passenger conveyor using the step roller of the present invention can avoid troubles such as operation stop due to breakage of the step roller.

Example 1
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a step roller for a passenger conveyor, a step chain using the step roller, and a passenger conveyor according to the present invention will be described below with reference to the drawings.

  FIG. 1 is an overall view of an escalator as an example of a passenger conveyor in which the step rollers of the present invention are used. In FIG. 1, an escalator 1 has an overall configuration including a truss 2a as a casing for supporting its own weight and a loaded load, and a balustrade 2b disposed on the truss, and includes a plurality of steps 3 in the truss 2a. ing. In the figure, only a part of the plurality of steps is illustrated for the step 3. Each step 3 includes a front step roller 4 and a rear step roller 5. In order to guide these steps 3 between the entrance and the exit in the truss 2, a guide rail 6 for the front wheels and a guide rail 7 for the rear wheels are provided. The step 3 is mounted so that the step rollers 4 and 5 are aligned with the guide rails 6 and 7, respectively, and the step rollers 4 and 5 move along the guide rails 6 and 7 by rolling on the guide rails 6 and 7, respectively. It is possible.

  A step sprocket 8 and a step sprocket 9 are provided on the upper floor side and the lower floor side in the truss 2. The plurality of steps 3 are connected by an endless conveyor-type step chain disposed on both sides of each step 3, and this step chain is wound around the step sprockets 8 and 9 and is driven by the step sprocket 8 on the upper floor side. As a result, the circular movement in the truss 2 is performed.

  FIG. 2A is a cross-sectional view of the sprocket portion of the escalator 1 shown in FIG. In FIG. 2, the rotating shaft 10 is rotatably supported at both ends in the axial direction by a bearing 10a. The bearing 10a is attached to the beam member 2a of the truss 2 via a fixing member (not shown).

  The left and right step sprockets 8 are respectively fixed to the rotary shaft 10 in the vicinity of the axial end of the rotary shaft 10. A drive sprocket 8a around which a chain driven by a drive device (not shown) is wound is attached and fixed to the side surface of the step sprocket 8 on the right side of the drawing via a spacer 8a. A ratchet wheel 10c for engaging with a ratchet (not shown) and preventing rotation of the rotary shaft 10 in the direction opposite to the normal driving direction is provided on the side surface of the drive sprocket 8 on the left side of the drawing via a spacer 10d. Mounting is fixed.

  A conveyor type step chain 11 is wound around these step sprockets 8, and a step roller of the conveyor type step chain meshes with the teeth of the step type sprocket 8, and a driving force is transmitted to the conveyor type step chain 11. In the figure, the conveyor-type step chain 11 is shown only on the upper side of the step sprocket 8 for easy explanation.

  As shown in the enlarged view of FIG. 2B, the conveyor-type step chain 11 includes a step roller 4 on the front wheel side at the center when viewed in cross section, and an inner link plate 12 and an outer link on both sides of the step roller 4. A plate 13 is provided. The inner link plate 12 and the outer link plate 13 connect adjacent step rollers 4, and the step roller 4, the inner link plate 12, and the outer link plate 13 can be rotated with each other by a rotation shaft 13a. By being connected, an endless conveyor-type step chain 11 is configured. As shown in the figure, the conveyor-type step chain 11 incorporates a step roller 4 on the front wheel side of the step 3 as a roller at the center, and therefore a roller other than the step roller 4 is prepared as a roller for the step chain 11. This contributes to saving parts and narrowing the truss.

  The step roller 4 includes a bearing portion 4a fitted to a rotary shaft 10a provided at a side end portion of the step, a metal member 4b fixed to the outer peripheral surface of the bearing portion 4a, and an outer periphery of the metal member 4b. And an outer peripheral portion fixed to. The bearing portion 4a has a roller disposed between the inner ring and the outer ring. A lubricant is introduced around the roller and is sealed by a sealing means (not shown) so that the lubricant does not leak. Has been.

In the illustrated embodiment, the outer peripheral portion is composed of a plurality of members having different hardnesses in the width direction of the step roller 4.

  That is, in the example shown in FIG. 2, the outer peripheral portion is a portion that is in contact with the step sprocket 8 in the width direction of the step roller 4 and is made of, for example, a steel member 4 c having high hardness, whereas the portion that does not contact the step sprocket 8 However, it is made of, for example, a resin member 4d having the same hardness as a step roller used in a conventional conveyor step chain.

  This outer peripheral portion is in contact with the teeth of the step sprocket 8 and in contact with the guide rail. Conventionally, a member made of the same material is used for the entire outer periphery of the outer peripheral portion. Specifically, the outer peripheral portion is made of resin to absorb a shock at the time of rolling on the guide rail and realize a smooth step running. However, in such a conventional step roller, since the outer peripheral part is made of resin, there is a limit to the load that the step roller can withstand, and when used on a high floor or heavy load passenger conveyor, In addition, there is a possibility that the outer periphery of the step sprocket 8 is elastically deformed when meshing with the teeth of the step sprocket 8, thereby causing vibration in the traveling direction of the step.

  On the other hand, the step roller 4 of the present embodiment has an outer peripheral portion made of a steel member 4c and a resin member 4d, so that a large load is applied to the step roller 4, that is, the upper floor side. The bent portion of the guide rail receives a load mainly from a steel member 4c having high hardness and rigidity, so that it can withstand the load applied to the step roller 4, and the step roller 4 is damaged by the load. No fear. Further, since the outer peripheral portion on the side in contact with the step sprocket 8 is also a steel member 4c having a high hardness, it is possible to suppress elastic deformation when the step sprocket 8 is engaged with the teeth of the step sprocket 8, and thus travel during step travel. Directional vibration is suppressed.

  The combination of the members having different hardnesses at the outer peripheral portion of the step roller 4 is not limited to the combination of the steel member 4c and the resin member 4d. For example, a combination of a member made of resin with high hardness and a member made of conventional resin may be used. Note that the combination of both members made of metal is disadvantageous in that vibration cannot be absorbed when the step roller 4 travels on the guide rail 6. Moreover, although the metal member 4c with high hardness can also use another metal member, it is more desirable than aluminum etc. that it is made of steel at a point with high hardness and rigidity.

  The steel member 4c and the resin member 4d constituting the outer periphery of the step roller 4 can be separated from each other so that only one member can be replaced.

  In the present embodiment illustrated in FIG. 2, the steel member 4 c is provided outside the resin member 4 d when viewed from the center of the rotating shaft 10 in the width direction of the step roller 4. This is because the width of the rolling surface of the guide rail 6 and the width of the step roller is larger than the thickness of the step sprocket 8, and in the connecting portion for guiding the conveyor-type step chain 11 from the guide rail 6 to the step sprocket 8, This is because the guide rail 6 is attached so as to be positioned closer to the center than the step sprocket 8 in order to facilitate the attaching operation. However, the step roller of the present invention is not limited to the arrangement of the outer periphery of the step roller 4 as shown in FIG. 2, and is a portion that contacts the step sprocket 8 according to the positional relationship between the guide rail 6 and the step sprocket 8. However, what is necessary is just to set it as the structure of the outer peripheral part which becomes the steel member 4b with high hardness.

(Example 2)
Next, another embodiment of the present invention will be described with reference to FIG.

  FIG. 3 is a sectional view showing a derivative example of the step roller according to the present invention. 2A is the same as the step roller 4 described with reference to FIG. 2, and the outer diameter of the steel member 4c having a high hardness at the outer peripheral portion and the outer diameter of the resin member 4d are the same. is there.

  FIG.3 (b) is sectional drawing which shows another example of the step roller of this invention. The step roller 14 shown in the figure includes a bearing portion 14a, a metal member 14b fixed to the outer peripheral side of the bearing portion 14a, and a steel member as an outer peripheral portion fixed to the outer peripheral side of the metal member 14b. 14c and a resin member 14d. The outer diameter (φA) of the steel member 14c is smaller than the outer diameter (φB) of the resin member 14d. Due to the difference in the outer diameter, the step roller 14 is prevented from being damaged while maintaining the conventional riding comfort. That is, when the step roller 14 is traveling on the guide rail 6, the guide rail comes into contact exclusively with the resin member 14d due to the difference in the outer diameter of the outer peripheral portion of the step roller 14 described above. Accordingly, the ride comfort of the passenger on the step can be made the same as that of the conventional one by the shock absorption property of the resin member 14c. On the other hand, in the bent portion on the upper floor side of the guide rail 6 where the load is most applied to the step roller 14, the resin member 14d is elastically deformed by the load applied to the step roller 14, and the guide rail 6 is a steel member. 14c and the resin member 14d are in contact with each other. Therefore, due to the high rigidity of the steel member 14c, the load applied to the step roller 14 can be handled, and the step roller 14 can be prevented from being damaged. Further, since the step sprocket 8 meshes with the steel member, it can withstand the load even when meshed with the step sprocket 8, and vibration in the traveling direction during the step traveling is suppressed.

  The difference between the outer diameter of the steel member 14c and the outer diameter of the resin member 14d is that, as described above, the resin member 14d is elastic when the step roller 14 travels on the bent portion where the load is most applied to the step roller. The difference is such that the steel member 14 c is deformed and comes into contact with the guide rail 8. Specifically, although it depends on the diameter of the step roller 14 and the resin material of the resin member 14d, the difference can be about 1 mm. It should be noted that this difference does not cause other problems when meshing with the step sprocket 8.

  FIG.3 (c) is sectional drawing which shows another example of the step roller of this invention. The step roller 15 shown in the figure includes a bearing portion 15a, a metal member 15b fixed to the outer peripheral side of the bearing portion 15a, and a steel member as an outer peripheral portion fixed to the outer peripheral side of the metal member 15b. 15c and a resin member 15d. And this bearing part 15a is unevenly distributed by the size of C shown in the figure near the steel member 15c which meshes with the step sprocket 8 in the width direction of the step roller 15. When the step roller 15 meshes with the step sprocket 8, it is the steel member 15 c that contacts the step sprocket 8 that bears the load. Therefore, by unevenly locating the bearing portion 15a near the steel member 15c, the bearing portion can bear a load almost linearly when meshing with the step sprocket 9, and stable rolling and eventually the step roller can be supported. Long life can be achieved.

  Note that the step roller 15 shown in FIG. 6C is similar to the step roller 14 shown in FIG. 10B, and the outer diameter (φA) of the steel member 15c is the outer diameter of the resin member 15d. It is smaller than the diameter (φB). As a result, like the step roller 14 shown in FIG. 5B, the step roller 15 can be prevented from being damaged while maintaining the conventional riding comfort. However, the example in which the bearing portion 15a is unevenly distributed near the steel member 15c is not limited to the example illustrated in FIG. 3C, and for example, a steel member as illustrated in FIG. It is also possible to cause the bearing portion to be unevenly distributed closer to the steel member on a step roller having an outer peripheral portion having the same outer diameter as that of the resin member.

(Example 3)
Next, another embodiment of the passenger conveyor of the present invention will be described with reference to FIG. FIG. 4A is a view showing a main part near the bent portion on the upper floor side of the guide rail 6 where the load received by the step roller 4 of the conveyor step chain 11 is the largest, and FIG. FIG. 2 is a sectional view taken along line AA in FIG.

  In order to reduce the load borne by the step roller 4 at the bending portion 6 a on the upper floor side of the guide rail 6, the lower side of the inner link plate 12 and the outer link plate 13 of the conveyor-type step chain 11 having the step roller 4 is in contact. A resin or steel load receiving guide 21 is provided. The load receiving guide 21 is provided over a range in which the load borne by the step roller 4 of the bent portion 6a increases in the traveling direction of the step roller, and the position of the load receiving guide 21 in the height direction is set to the bent portion. In the position 6a, the load receiving guide 21 bears the load so that the load borne by the step roller 4 is equal to or less than the load borne when traveling other than the bent portion 6a. Further, the load receiving guide 21 may be disposed at such a height that the step roller 4 of the conveyor-type step chain 11 is lifted from the guide rail 6 at the bent portion 6a.

  The upper surface of the load receiving guide 21 in contact with the lower surfaces of the inner link plate 12 and the outer link plate 13 so that the lower surfaces of the inner link plate 12 and the outer link plate 13 of the conveyor type step chain 11 can be smoothly slid. The shape of the curvature R is that the height from the guide rail 6 to the load receiving guide 21 is added to the curvature of the bent portion 6a of the guide rail 6. Further, the lower surfaces of the inner link plate 12 and the outer link plate 13 are also shaped to have the same curvature R as the curvature of the upper surface of the load receiving guide 21.

  Since the load receiving guide 21 is provided at the bent portion 6 a of the guide rail 6, the step roller 4 rolling on the guide rail bears a part or all of the load at the bent portion 6 a by the load receiving guide 21. Therefore, there is no possibility that the step roller 4 is damaged.

  In addition, since the breakage of the step roller 4 that has been concerned about the bending portion 6a in the past is solved by providing the load receiving guide 21 of the present embodiment, the outer periphery of the step roller 4 as shown in FIG. It is not necessarily required to be composed of a plurality of members having different hardnesses in the width direction of the roller. However, in order to reduce vibration in the running direction of the step when it is caught in the step sprocket 8, it is advantageous that the outer periphery of the step roller 4 is composed of a plurality of members having different hardnesses in the width direction of the roller. It is. Therefore, the present invention is not limited to the example illustrated in FIG. 4, and the load receiving guide 21 is disposed, and the step roller is rotatably attached to the shaft provided at the side end of each step; An outer peripheral portion fixed to the outer peripheral surface of the bearing portion and made of a plurality of members having different hardnesses in the width direction of the roller can also be provided.

  As mentioned above, although the Example of this invention was described concretely using drawing, this invention is not limited to description of drawing and Example, Many deformation | transformation are possible. For example, in the drawings, the passenger conveyor has been described with an example of an escalator, but the passenger conveyor of the present invention is not limited to an escalator, and can also be applied to a moving sidewalk.

It is a general view which shows the escalator as an Example of the passenger conveyor of this invention. It is explanatory drawing of the step roller and step chain of this invention. It is sectional drawing of the other example of the step roller of this invention. It is a figure which shows the principal part of the bend part vicinity of the upper floor side of a guide rail. It is explanatory drawing of the conventional step roller. It is sectional drawing of the step roller and roller type step chain in a bending part.

Explanation of symbols

1 Escalator (passenger conveyor)
3 Step 4 Step roller 4a Bearing 4c Steel member 4d Resin member 6 Guide rail 8 Step sprocket 11 Conveyor step chain 12 Inner link plate 13 Outer link plate 21 Load receiving guide

Claims (8)

It is a roller of a conveyor-type step chain that connects steps, and a step roller that is rotatably provided at a side end portion of the step and guides the step,
A bearing portion fitted on a shaft provided at a side end portion of the step;
A step roller for a passenger conveyor, comprising: an outer peripheral portion fixed to an outer peripheral surface of the bearing portion, and an outer peripheral portion made of a plurality of members having different hardness in the width direction of the roller.   The step of the passenger conveyor according to claim 1, wherein a portion of the outer peripheral portion of the roller that contacts the step sprocket that meshes with the conveyor-type step chain in the width direction of the roller is a member having a higher hardness than a portion that does not contact the sprocket. roller.   The step roller of the passenger conveyor according to claim 2, wherein a portion in contact with the sprocket is made of steel, and a portion not in contact with the sprocket is made of resin.   2. The passenger conveyor according to claim 1, wherein a portion of the outer peripheral portion of the roller that contacts the sprocket that meshes with the conveyor-type step chain in a width direction of the roller has a smaller outer diameter than a portion that does not contact the sprocket. Step rollers.   The step roller of the passenger conveyor according to claim 1, wherein the bearing portion is unevenly distributed near a portion in contact with a sprocket meshing with the conveyor-type step chain in a width direction of the roller. A step roller having a bearing portion fitted to a shaft provided at a side end portion of the step, and an outer peripheral portion fixed to the outer peripheral surface of the bearing portion and made of a plurality of members having different hardnesses in the width direction of the roller. When,
A step chain for a passenger conveyor comprising a link plate rotatably attached to both side surfaces of the step roller. Multiple steps,
An endless step chain for connecting each step, having a step roller rotatably provided at a side end of the step, and link plates rotatably attached to both side surfaces of the step roller;
A step sprocket that is provided at the turn part of the step chain and winds the step chain;
A guide rail provided along the path of movement of the step chain leading to the sprocket, and rolling the step roller to guide the step;
A load receiving guide that is disposed adjacent to a bend formed in the guide rail in the immediate vicinity of the sprocket and that contacts the lower surface of the link plate of the conveyor-type step chain that moves in parallel with the guide rail. And passenger conveyor.   The step roller is a bearing portion fitted to a shaft provided at a side end portion of each step, and an outer periphery formed by a plurality of members fixed to the outer peripheral surface of the bearing portion and having different hardness in the width direction of the roller. The passenger conveyor according to claim 7.

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