Rail cleaning device for passenger conveyor

Abstract

Provided is a track cleaning device for a passenger conveyor that can be easily attached to a drive chain. In a track cleaning device (31) for a passenger conveyor, an attachment portion (32) is attached to a drive chain (16) having a plurality of link members (161). The attachment portion (32) has an insertion portion (321), a first holding portion (322) provided at one end of the insertion portion (321) in the height direction of the attachment portion (32), and a first protruding portion (323) protruding from the first holding portion (322) in a direction intersecting the height direction of the attachment portion (32). A cleaning body (33) has a first cleaning portion (331) provided at the first holding portion (322). The attachment portion (32) is attached to the drive chain (16) in a state in which the insertion portion (321) is inserted between a pair of link plates (162) of the link member (161) and the first protruding portion (323) is hooked to the link plates (162) from the outside of the link member (161).

Description

TECHNICAL FIELD

[0001] The present application relates to a track cleaning device of a passenger conveyor. BACKGROUND

[0002] In the past, in a passenger conveyor in which an inner roller type drive chain in which drive rollers are assembled is used, in order to clean a drive track that guides the drive rollers, a track cleaning device is sometimes attached to the drive chain. The track cleaning device of the past has a main body, a cleaning body provided to the main body, and a fastening band that fastens the main body to a link member of the drive chain. In the passenger conveyor of the past, the track cleaning device is attached to the drive chain by fastening the main body to the link member of the drive chain using the fastening band. The cleaning body contacts the drive track, and the track cleaning device moves together with the drive chain, thereby cleaning the drive track (for example, refer to Patent Literature 1).

[0003] PRIOR ART DOCUMENTS

[0004] PATENT LITERATURE

[0005] Patent Literature 1: International Publication No. 2018 / 220753

[0006] However, in the track cleaning device of the passenger conveyor shown in Patent Literature 1, in order to attach the main body to the drive chain, it is necessary to fasten the main body to the link member of the drive chain using the fastening band. Therefore, the work of attaching the track cleaning device to the drive chain takes effort. SUMMARY

[0007] The present application was made in order to solve the above-described problems, and has an object to obtain a track cleaning device of a passenger conveyor that can be easily attached to a drive chain.

[0008] The track cleaning device of the passenger conveyor of the present application has an attachment portion and a cleaning body, the attachment portion is attached to a drive chain, the drive chain has a plurality of link members that are linked in a ring shape, the cleaning body is provided to the attachment portion and contacts a drive track that guides a drive roller, each link member has a pair of link plates that face each other in a width direction of the drive chain, the drive chain is an inner roller type chain in which the drive roller is disposed between the pair of link plates, the attachment portion has an insertion portion, a first holding portion that is provided to one end portion of the insertion portion in a height direction of the attachment portion, and a first protruding portion that protrudes from the first holding portion in a direction that intersects the height direction of the attachment portion, and the cleaning body has a first cleaning portion that is provided to the first holding portion, and in a state in which the insertion portion is inserted between the pair of link plates of at least any one of the plurality of link members and the first protruding portion is hooked to the link plates from the outside of the link member, the attachment portion is attached to the drive chain.

[0009] EFFECT OF THE INVENTION

[0010] The track cleaning device of the passenger conveyor according to the present application can easily mount the track cleaning device to the drive chain. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a side view showing the passenger conveyor of Embodiment 1.

[0012] Figure 2 is a side view showing Figure 1 the state in which the track cleaning device of

[0013] Figure 3 is a sectional view along the III-III line of Figure 2

[0014] Figure 4 is a plan view showing Figure 2 the track cleaning device of

[0015] Figure 5 is a sectional view showing the track cleaning device of the passenger conveyor of Embodiment 2.

[0016] Figure 6 is a side view showing the passenger conveyor of Embodiment 3.

[0017] Figure 7 is a sectional view showing Figure 6 the state in which the track cleaning device of

[0018] Figure 8 is a sectional view showing Figure 6 the state in which the track cleaning device of

[0019] REFERENCE NUMERALS

[0020] 16: drive chain; 17: drive roller; 19: drive track; 31: track cleaning device; 32: mounting portion; 33: cleaning body; 41: first tapered surface; 43: second tapered surface; 161: link member; 162: link plate; 321: insertion portion; 322: first holding portion; 323: first protrusion portion; 324: second holding portion; 325: second protrusion portion; 331: first cleaning portion; 332: second cleaning portion. DETAILED DESCRIPTION

[0021] Embodiment 1.

[0022] Figure 1 ​is a side view showing a passenger conveyor of Embodiment 1. In the figure, in an escalator which is a passenger conveyor, a truss 3 is provided between a lower structure 1 and an upper structure 2. The upper structure 2 is provided at a position higher than the lower structure 1. A length direction one end portion of the truss 3 is hooked to the upper structure 2. A length direction other end portion of the truss 3 is hooked to the lower structure 1.

[0023] An upper machine room is provided at the length direction one end portion of the truss 3. A lower machine room is provided at the length direction other end portion of the truss 3. A sprocket body 7 and a drive machine 8 are provided in the upper machine room. A lower sprocket 15 is provided in the lower machine room.

[0024] The sprocket body 7 has a main shaft 9, a transmission sprocket 10, and an upper sprocket 11. The main shaft 9 is disposed along a width direction of the truss 3. The width direction of the truss 3 is a horizontal direction perpendicular to the length direction of the truss 3. The transmission sprocket 10 and the upper sprocket 11 are fixed to the main shaft 9.

[0025] The drive machine 8 has a drive machine body 12 including a motor, and a drive machine sprocket 13 provided to the drive machine body 12. A ring-shaped transmission chain 14 is hung between the transmission sprocket 10 and the drive machine sprocket 13. A drive force of the drive machine 8 is transmitted to the transmission sprocket 10 via the transmission chain 14 by rotation of the drive machine sprocket 13. The transmission sprocket 10 and the upper sprocket 11 rotate integrally with the main shaft 9 around an axis of the main shaft 9 by the drive force of the drive machine 8 transmitted to the transmission sprocket 10.

[0026] A ring-shaped drive chain 16 is hung between the upper sprocket 11 and the lower sprocket 15. The drive chain 16 moves on a ring-shaped chain movement path by rotation of the upper sprocket 11.

[0027] The chain movement path includes a chain departure route, and a chain return route located at a position lower than the chain departure route. The chain departure route and the chain return route are routes from the lower machine room to the upper machine room. In the upper machine room, the chain departure route and the chain return route are connected via a chain upper reversal portion along an outer peripheral portion of the upper sprocket 11. In the lower machine room, the chain departure route and the chain return route are connected via a chain lower reversal portion along an outer peripheral portion of the lower sprocket 15.

[0028] A plurality of steps 4 are supported by the truss 3. The plurality of steps 4 are linked in a ring shape by the drive chain 16. The plurality of steps 4 move on a ring-shaped step movement path by movement of the drive chain 16.

[0029] The step movement path includes a step departure route, and a step return route located at a position lower than the step departure route. The step departure route and the step return route are routes from the lower machine room to the upper machine room. In the upper machine room, the step departure route and the step return route are connected via a step upper reversal portion. In the lower machine room, the step departure route and the step return route are connected via a step lower reversal portion.

[0030] A plurality of drive rollers 17 corresponding to the respective steps 4 are provided in the drive chain 16. The plurality of drive rollers 17 are arranged at intervals from each other in the length direction of the drive chain 16. Each drive roller 17 moves on a chain movement path in conjunction with the movement of the drive chain 16. In each step 4, a corresponding drive roller 17 is installed as a step roller. Each step 4 moves on a step movement path in conjunction with the movement of the corresponding drive roller 17.

[0031] In each step 4, a follower roller 18 different from the drive roller 17 is installed. In the truss 3, a drive rail 19 that guides the plurality of drive rollers 17, and a follower rail 20 that guides the plurality of follower rollers 18 are fixed. Thus, each step 4 is supported to the truss 3 via the drive rail 19 and the follower rail 20.

[0032] The drive rail 19 has a departure-side drive rail 191 and a return-side drive rail 192. The return-side drive rail 192 is arranged at a position lower than the departure-side drive rail 191. The departure-side drive rail 191 guides the drive roller 17 that moves in the chain departure path. That is, the departure-side drive rail 191 guides the drive roller 17 installed to the step 4 that moves in the step departure path. The return-side drive rail 192 guides the drive roller 17 that moves in the chain return path. That is, the return-side drive rail 192 guides the drive roller 17 installed to the step 4 that moves in the step return path.

[0033] The follower rail 20 has a departure-side follower rail 201 and a return-side follower rail 202. The return-side follower rail 202 is arranged at a position lower than the departure-side follower rail 201. The departure-side follower rail 201 guides the follower roller 18 installed to the step 4 that moves in the step departure path. The return-side follower rail 202 guides the follower roller 18 installed to the step 4 that moves in the step return path.

[0034] The moving direction of each step 4 is reversed at the step upper portion reversal portion and the step lower portion reversal portion, respectively. Thereby, the posture of the step 4 that moves in the step return path becomes an upside-down posture with respect to the posture of the step 4 that moves in the step departure path.

[0035] A pair of railings 5 is provided in the truss 3. A ring-shaped moving handrail 6 is supported in each of the pair of railings 5. Each moving handrail 6 moves in the outer peripheral portion of the railing 5 in synchronization with each step 4 and the drive chain 16.

[0036] An orbit cleaning device 31 is installed to the drive chain 16. In the present embodiment, two orbit cleaning devices 31 are installed to the drive chain 16. Each orbit cleaning device 31 moves on the chain moving path in conjunction with the movement of the drive chain 16. One of the two orbit cleaning devices 31 is provided as an orbit cleaning device for the outbound path, and the other orbit cleaning device 31 is provided as an orbit cleaning device for the inbound path. The orbit cleaning device for the outbound path comes into contact with the outbound-side drive orbit 191 when moving in the chain outbound path. The orbit cleaning device for the outbound path moves in the chain outbound path while being in contact with the outbound-side drive orbit 191, thereby cleaning the outbound-side drive orbit 191. The orbit cleaning device for the inbound path comes into contact with the inbound-side drive orbit 192 when moving in the chain inbound path. The orbit cleaning device for the inbound path moves in the chain inbound path while being in contact with the inbound-side drive orbit 192, thereby cleaning the inbound-side drive orbit 192.

[0037] Figure 2 is a side view showing a state in which the orbit cleaning device 31 of Figure 1 comes into contact with the outbound-side drive orbit 191. Figure 3 is a cross-sectional view along the III-III line of Figure 2 . Figure 4 is a plan view showing the orbit cleaning device 31 of Figure 2 . The drive chain 16 has a plurality of link members 161 linked in a ring shape. Two link members 161 adjacent to each other are linked in a rotatable manner with respect to each other via a link shaft. Each drive roller 17 is provided to the link shaft linking the two link members 161 to each other.

[0038] The drive chain 16 is arranged in a state in which the width direction of the drive chain 16 coincides with the width direction of the truss 3. Each link member 161 has a pair of link plates 162 facing each other in the width direction of the drive chain 16. Each drive roller 17 is arranged between the pair of link plates 162. Thus, the drive chain 16 becomes an inner roller type chain.

[0039] In a state in which the orbit cleaning device 31 is installed to the drive chain 16, the orbit cleaning device 31 is arranged between two drive rollers 17 adjacent to each other. The orbit cleaning device 31 has a mounting portion 32 and a cleaning body 33. The mounting portion 32 is installed to at least any one of the plurality of link members 161. The cleaning body 33 is provided to the mounting portion 32.

[0040] Here, in the present embodiment, a height direction, a width direction, and a thickness direction are defined with respect to the mounting portion 32. The width direction of the mounting portion 32 is a direction perpendicular to the height direction of the mounting portion 32. The thickness direction of the mounting portion 32 is a direction perpendicular to both the height direction of the mounting portion 32 and the width direction of the mounting portion 32.

[0041] The mounting portion 32 is mounted to the link member 161 in a state in which the width direction of the mounting portion 32 coincides with the width direction of the drive chain 16 and the thickness direction of the mounting portion 32 coincides with the length direction of the drive chain 16. The mounting portion 32 is elastically deformable. The mounting portion 32 is a cellular body composed of an elastic material. In the present embodiment, the mounting portion 32 is composed of polyethylene foam. The mounting portion 32 is integrally configured as a single member. That is, the mounting portion 32 is formed by integral molding. The mounting portion 32 can be manufactured by blanking a raw material member composed of polyethylene foam, or can be manufactured by independently molding polyethylene foam in a mold.

[0042] The mounting portion 32 has an insertion portion 321, a first holding portion 322, and a pair of first protruding portions 323.

[0043] The insertion portion 321 is inserted between the pair of link plates 162 in one link member 161. The size of the insertion portion 321 in the width direction of the mounting portion 32 is set to match the size between the pair of link plates 162. Thus, the insertion portion 321 is inserted between the pair of link plates 162 in a state in which the pair of link plates 162 are respectively contacted. In the present embodiment, the shape of the insertion portion 321 is a rectangular parallelepiped shape. Further, in the present embodiment, the size of the insertion portion 321 in the width direction of the mounting portion 32 is smaller than the size of the insertion portion 321 in the thickness direction of the mounting portion 32.

[0044] The first holding portion 322 is provided at one end portion of the insertion portion 321 in the height direction of the mounting portion 32. In the present embodiment, the shape of the first holding portion 322 is a rectangular parallelepiped shape. Further, the size of the first holding portion 322 in the width direction of the mounting portion 32 is the same as the size of the insertion portion 321 in the width direction of the mounting portion 32. The size of the first holding portion 322 in the thickness direction of the mounting portion 32 is the same as the size of the insertion portion 321 in the thickness direction of the mounting portion 32.

[0045] The pair of first protruding portions 323 respectively protrude from the first holding portion 322 toward the width direction of the mounting portion 32. In the present embodiment, the pair of first protruding portions 323 protrude from the first holding portion 322 in opposite directions to each other in the width direction of the mounting portion 32. In the present embodiment, each of the first protruding portions 323 is provided over the entire range of the first holding portion 322 in the thickness direction of the mounting portion 32.

[0046] The cleaning body 33 has a first cleaning portion 331 provided to the first holding portion 322. The first cleaning portion 331 is in contact with the drive rail 19. The first cleaning portion 331 is provided to the end portion on the side opposite to the insertion portion 321 among the both end portions of the first holding portion 322 in the height direction of the mounting portion 32.

[0047] The size of the first cleaning portion 331 in the width direction of the mounting portion 32 is the same as the size of the first holding portion 322 in the width direction of the mounting portion 32. The size of the first cleaning portion 331 in the thickness direction of the mounting portion 32 is the same as the size of the first holding portion 322 in the thickness direction of the mounting portion 32. The first cleaning portion 331 is elastically deformable. The first cleaning portion 331 is a porous body composed of an elastic material. In the present embodiment, the first cleaning portion 331 is composed of polyethylene foam. Further, in the present embodiment, the first cleaning portion 331 is a separate member from the mounting portion 32. As the first cleaning portion 331, a brush or the like can also be used.

[0048] The first taper surface 41 and the first hooking surface 42 are formed in each first protruding portion 323. The first hooking surface 42 is formed at a position closer to the insertion portion 321 than the first taper surface 41.

[0049] The first taper surface 41 is a surface inclined with respect to the height direction of the mounting portion 32. The first taper surface 41 is inclined toward a direction away from the first holding portion 322 as it approaches the insertion portion 321 from the first cleaning portion 331 side. The first hooking surface 42 is a surface perpendicular to the height direction of the mounting portion 32.

[0050] The mounting portion 32 is mounted to the drive chain 16 in a state in which the insertion portion 321 is inserted between the pair of link plates 162. Further, the mounting portion 32 is mounted to the drive chain 16 in a state in which each first protruding portion 323 is hooked to each link plate 162 from the outside of the link member 161 in the height direction of the mounting portion 32. Each first protruding portion 323 is hooked to the link plate 162 in a state in which the first hooking surface 42 is in contact with the link plate 162. In the state in which the first protruding portion 323 is hooked to the link plate 162, displacement of the mounting portion 32 toward the direction in which the first cleaning portion 331 approaches the link member 161 is prevented.

[0051] In the track cleaning device 31 for the outbound route that moves while the chain is in the outbound route, the first holding portion 322, each first protruding portion 323, and the first cleaning portion 331 are disposed at positions closer to the outbound-side drive track 191 than the link member 161. In the track cleaning device 31 for the outbound route, the position of each first protruding portion 323 with respect to the first cleaning portion 331 is determined in such a manner that the first cleaning portion 331 is in contact with the outbound-side drive track 191.

[0052] In the track cleaning device 31 for the inbound route that moves while the chain is in the inbound route, the first holding portion 322, each first protruding portion 323, and the first cleaning portion 331 are disposed at positions closer to the inbound-side drive track 192 than the link member 161. In the track cleaning device 31 for the inbound route, the position of each first protruding portion 323 with respect to the first cleaning portion 331 is determined in such a manner that the first cleaning portion 331 is in contact with the inbound-side drive track 192.

[0053] In the chain outbound, the driving chain 16 moves while the distance between each link member 161 and the outbound side driving track 191 is kept constant by the plurality of driving rollers 17 contacting the outbound side driving track 191. Also, in the chain inbound, the driving chain 16 moves while the distance between each link member 161 and the inbound side driving track 192 is kept constant by the plurality of driving rollers 17 contacting the inbound side driving track 192.

[0054] Therefore, in the track cleaning device 31 for the outbound, the position of each first protruding portion 323 with respect to the first cleaning portion 331 is determined according to the distance between the link member 161 moving in the chain outbound and the outbound side driving track 191. Also, in the track cleaning device 31 for the inbound, the position of each first protruding portion 323 with respect to the first cleaning portion 331 is determined according to the distance between the link member 161 moving in the chain inbound and the inbound side driving track 192.

[0055] The first cleaning portion 331 of the track cleaning device 31 for the outbound moves while contacting the outbound side driving track 191, thereby cleaning the outbound side driving track 191. The first cleaning portion 331 of the track cleaning device 31 for the inbound moves while contacting the inbound side driving track 192, thereby cleaning the inbound side driving track 192.

[0056] Next, the installation method of the track cleaning device 31 for the driving chain 16 will be described. The track cleaning device 31 for the outbound is installed to the driving chain 16 in the chain outbound. When the track cleaning device 31 for the outbound is installed to the driving chain 16 in the chain outbound, first, the track cleaning device 31 for the outbound is arranged so that the first cleaning portion 331 opposes the outbound side driving track 191 with the driving chain 16 interposed therebetween. Then, the first cleaning portion 331 is brought into contact with any of the plurality of link members 161 present in the chain outbound. At this time, the width direction of the installation portion 32 is made to coincide with the width direction of the driving chain 16, and the thickness direction of the installation portion 32 is made to coincide with the length direction of the driving chain 16.

[0057] Then, the track cleaning device 31 for the outbound is pressed in between the pair of link plates 162. Thereby, the first cleaning portion 331, the first holding portion 322, and each first protruding portion 323 pass in between the pair of link plates 162, and the first cleaning portion 331 comes into contact with the outbound side driving track 191. At this time, each first protruding portion 323 is elastically deformed by the link plates 162 and moves in between the pair of link plates 162.

[0058] When the first cleaning portion 331 of the track cleaning device 31 for the outbound path comes into contact with the outbound-side drive track 191, each first protruding portion 323 protrudes from between the pair of link plates 162, and each first protruding portion 323 elastically deforms and returns to its original shape. Thus, each first protruding portion 323 is hooked from the outside of the link member 161 to each link plate 162. At this time, the insertion portion 321 is held between the pair of link plates 162. Thus, the mounting portion 32 is mounted to the link member 161, and the track cleaning device 31 is mounted to the drive chain 16.

[0059] In a state where the track cleaning device 31 for the outbound path is mounted to the drive chain 16, each first protruding portion 323 is hooked to each link plate 162. Thus, displacement of the track cleaning device 31 for the outbound path in a direction away from the outbound-side drive track 191 is prevented. Therefore, a state in which the first cleaning portion 331 of the track cleaning device 31 for the outbound path is in contact with the outbound-side drive track 191 is ensured.

[0060] On the other hand, the track cleaning device 31 for the inbound path is mounted to the drive chain 16 in the chain inbound path. When the track cleaning device 31 for the inbound path is mounted to the drive chain 16 in the chain inbound path, the track cleaning device 31 for the inbound path is disposed so that the first cleaning portion 331 faces the inbound-side drive track 192 with the drive chain 16 interposed therebetween. Thereafter, the track cleaning device 31 for the inbound path is mounted to the drive chain 16 according to the same steps as when the track cleaning device 31 for the outbound path is mounted to the drive chain 16. Thus, a state in which the first cleaning portion 331 of the track cleaning device 31 for the inbound path is in contact with the inbound-side drive track 192 is ensured.

[0061] In such a track cleaning device 31, each first protruding portion 323 protrudes from the first holding portion 322 in the width direction of the mounting portion 32. Therefore, by inserting the track cleaning device 31 between the pair of link plates 162 to hook each first protruding portion 323 to each link plate 162, the mounting portion 32 can be mounted to the link member 161. Thus, the track cleaning device 31 can be easily mounted to the drive chain 16.

[0062] Further, the mounting portion 32 can elastically deform. Therefore, each first protruding portion 323 can elastically deform and pass between the pair of link plates 162. Thus, by pressing the track cleaning device 31 between the pair of link plates 162, the mounting portion 32 can be mounted to the link member 161. Therefore, the track cleaning device 31 can be more easily mounted to the drive chain 16.

[0063] Further, the insertion portion 321 can also generate an elastic restoring force that pushes the pair of link plates 162, so that the insertion portion 321 can be more reliably held between the pair of link plates 162. Therefore, the state in which the mounting portion 32 is mounted to the link member 161 can be stabilized.

[0064] Further, the first tapered surface 41 inclined with respect to the height direction of the mounting portion 32 is formed in each first protruding portion 323. Therefore, when the track cleaning device 31 is pressed between the pair of link plates 162, each first protruding portion 323 can be guided between the pair of link plates 162 by each first tapered surface 41. Thus, when the track cleaning device 31 is pressed between the pair of link plates 162, each first protruding portion 323 can be easily elastically deformed. Therefore, the track cleaning device 31 can be more easily mounted to the drive chain 16.

[0065] Further, the first cleaning portion 331 can be elastically deformed. Therefore, the first cleaning portion 331 can be elastically deformed so as to match the shape of the drive track 19, and thus dirt adhering to the drive track 19 can be effectively removed. Thus, the effect of cleaning the drive track 19 can be improved.

[0066] Further, the mounting portion 32 and the cleaning body 33 are made of polyethylene foam. Therefore, the mounting portion 32 and the cleaning body 33 can be easily manufactured, respectively.

[0067] Further, the mounting portion 32 is integrally configured as a single member. Therefore, the number of components of the track cleaning device 31 can be reduced, and the structure of the track cleaning device 31 can be simplified. Thus, the track cleaning device 31 can be easily manufactured.

[0068] Further, in Embodiment 1, the mounting portion 32 can be elastically deformed. However, the mounting portion 32 can not be elastically deformable. In this case, when the mounting portion 32 is mounted to the link member 161, the track cleaning device 31 is inserted between the pair of link plates 162 in a state in which the width direction of the mounting portion 32 coincides with the length direction of the drive chain 16. Thereafter, the track cleaning device 31 is rotated about the center line of the mounting portion 32 in the height direction, so that the width direction of the mounting portion 32 coincides with the width direction of the drive chain 16. Thus, each first protruding portion 323 is hooked to each link plate 162 from the drive track 19 side, and the mounting portion 32 is mounted to the link member 161. In this way, the track cleaning device 31 can be easily mounted to the drive chain 16. In this case, in order to insert the track cleaning device 31 between the pair of link plates 162, the thickness direction dimension of the mounting portion 32 is made smaller than the dimension between the pair of link plates 162.

[0069] Embodiment 2.

[0070] Figure 5 is a cross-sectional view showing a track cleaning device of a passenger conveyor of Embodiment 2. In addition, Figure 5 is a cross-sectional view showing a track cleaning device of a passenger conveyor of Embodiment 1 Figure 3The corresponding view. In this embodiment, the first cleaning portion 331 of the cleaning body 33 is formed by integral molding with the mounting portion 32. Therefore, the mounting portion 32 and the first cleaning portion 331 are integrally configured as a single component. The other structures in Embodiment 2 are the same as in Embodiment 1.

[0071] In such a track cleaning device 31, the mounting portion 32 and the first cleaning portion 331 are integrally configured as a single component. Therefore, the number of components of the track cleaning device 31 can be further reduced, and the structure of the track cleaning device 31 can be further simplified. Thus, the track cleaning device 31 can be more easily manufactured.

[0072] In addition, in Embodiments 1 and 2, the track cleaning device 31 for the outbound route and the track cleaning device 31 for the inbound route are mounted to the drive chain 16. However, only the track cleaning device 31 for the outbound route can be mounted to the drive chain 16.

[0073] Embodiment 3.

[0074] Figure 6 is a side view showing a passenger conveyor of Embodiment 3. Figure 7 is a side view showing Figure 6 is a cross-sectional view showing a state in which the track cleaning device 31 of Figure 8 is a cross-sectional view showing a state in which the track cleaning device 31 of Figure 6 is a cross-sectional view showing a state in which the track cleaning device 31 of Figure 7 is a view corresponding to Figure 3 In this embodiment, the cleaning body 33 is formed by integral molding with the mounting portion 32. Therefore, the mounting portion 32 and the cleaning body 33 are integrally configured as a single component. The mounting portion 32 and the cleaning body 33 can be elastically deformed. The mounting portion 32 and the cleaning body 33 are porous bodies composed of an elastic material. In this embodiment, the mounting portion 32 and the cleaning body 33 are composed of polyethylene foam.

[0075] The mounting portion 32 has an insertion portion 321, a first holding portion 322, a pair of first protruding portions 323, a second holding portion 324, and a pair of second protruding portions 325. The structures of the insertion portion 321, the first holding portion 322, and the pair of first protruding portions 323 are the same as in Embodiment 1.

[0076] The second holding portion 324 is provided at the other end portion of the insertion portion 321 in the height direction of the mounting portion 32. That is, the second holding portion 324 is provided at the end portion of the insertion portion 321 in the height direction of the mounting portion 32, which is different from the end portion provided with the first holding portion 322. Thus, the first holding portion 322 and the second holding portion 324 face each other with the insertion portion 321 interposed therebetween in the height direction of the mounting portion 32.

[0077] In the present embodiment, the shape of the second holding portion 324 is the same shape as the shape of the first holding portion 322. That is, in the present embodiment, the shape of the second holding portion 324 is a cuboid shape. Further, the size of the second holding portion 324 in the width direction of the mounting portion 32 is the same as the size of the insertion portion 321 in the width direction of the mounting portion 32. The size of the second holding portion 324 in the thickness direction of the mounting portion 32 is the same as the size of the insertion portion 321 in the thickness direction of the mounting portion 32.

[0078] A pair of second protruding portions 325 protrude from the second holding portion 324 in the width direction of the mounting portion 32, respectively. In the present embodiment, the pair of second protruding portions 325 protrude from the second holding portion 324 in the width direction of the mounting portion 32 in reverse to each other. In the present embodiment, each of the second protruding portions 325 is provided in the entire range of the second holding portion 324 in the thickness direction of the mounting portion 32.

[0079] The cleaning body 33 has a first cleaning portion 331 and a second cleaning portion 332. The first cleaning portion 331 is provided to the first holding portion 322. The second cleaning portion 332 is provided to the second holding portion 324. The structure of the first cleaning portion 331 is the same as the structure of the first cleaning portion 331 in Embodiment 1. The first cleaning portion 331 is in contact with the approach-side drive track 191. The second cleaning portion 332 is in contact with the return-side drive track 192. The second cleaning portion 332 is provided to the end portion of the second holding portion 324 on the side opposite to the insertion portion 321 among both end portions of the second holding portion 324 in the height direction of the mounting portion 32.

[0080] The size of the second cleaning portion 332 in the width direction of the mounting portion 32 is the same as the size of the second holding portion 324 in the width direction of the mounting portion 32. The size of the second cleaning portion 332 in the thickness direction of the mounting portion 32 is the same as the size of the second holding portion 324 in the thickness direction of the mounting portion 32.

[0081] The second taper surface 43 and the second hooking surface 44 are formed in each of the second protruding portions 325. The second hooking surface 44 is formed at a position closer to the insertion portion 321 than the second taper surface 43.

[0082] The second taper surface 43 is a surface inclined with respect to the height direction of the mounting portion 32. The second taper surface 43 is inclined toward a direction away from the second holding portion 324 as approaching the insertion portion 321 from the second cleaning portion 332 side. The second hooking surface 44 is a surface perpendicular to the height direction of the mounting portion 32.

[0083] The mounting portion 32 is mounted to the drive chain 16 in a state in which each link plate 162 is disposed between each first protruding portion 323 and each second protruding portion 325 in the height direction of the mounting portion 32. Further, the mounting portion 32 is mounted to the drive chain 16 in a state in which each first protruding portion 323 and each second protruding portion 325 are hooked from the outside of the link member 161 to each link plate 162. In a state in which the mounting portion 32 is mounted to the drive chain 16, the insertion portion 321 is inserted between the pair of link plates 162. In a state in which each first protruding portion 323 and each second protruding portion 325 are hooked to each link plate 162, displacement of the mounting portion 32 with respect to the link member 161 is prevented in the height direction of the mounting portion 32. Other structures in Embodiment 3 are the same as in Embodiment 2.

[0084] The moving direction of the drive chain 16 is reversed at the chain upper reversal portion and the chain lower reversal portion, respectively. Thereby, the posture of the track cleaning device 31 moving in the chain return route becomes an upside-down posture with respect to the posture of the track cleaning device 31 moving in the chain departure route. Therefore, the track cleaning device 31 becomes a posture in which the first cleaning portion 331 faces downward when moving in the chain departure route, and becomes a posture in which the second cleaning portion 332 faces downward when moving in the chain return route.

[0085] Therefore, the track cleaning device 31 moves in the chain departure route in a case in which the first cleaning portion 331 is brought into contact with the departure route side drive track 191. Thereby, the departure route side drive track 191 is cleaned. Further, the track cleaning device 31 moves in the chain return route in a case in which the second cleaning portion 332 is brought into contact with the return route side drive track 192. Thereby, the return route side drive track 192 is cleaned.

[0086] Next, the mounting method of the track cleaning device 31 with respect to the drive chain 16 will be described. When the track cleaning device 31 is mounted to the drive chain 16 in the chain departure route, the track cleaning device 31 is disposed in a manner in which the first cleaning portion 331 opposes the departure route side drive track 191 with the drive chain 16 interposed therebetween. Thereafter, the first cleaning portion 331 is brought into contact with any of the plurality of link members 161 existing in the chain departure route. At this time, the width direction of the mounting portion 32 is made to coincide with the width direction of the drive chain 16, and the thickness direction of the mounting portion 32 is made to coincide with the length direction of the drive chain 16.

[0087] Thereafter, the track cleaning device 31 is pressed in between the pair of link plates 162. Thereby, the first cleaning portion 331, the first holding portion 322, and each first protruding portion 323 pass between the pair of link plates 162, and the first cleaning portion 331 comes into contact with the departure route side drive track 191. At this time, each first protruding portion 323 is elastically deformed by the link plates 162 and moves between the pair of link plates 162.

[0088] When the first cleaning portion 331 contacts the travel-side drive rail 191, each first protruding portion 323 protrudes from between the pair of link plates 162, and each first protruding portion 323 elastically deforms and returns. Thus, the link plates 162 are arranged between the first protruding portion 323 and the second protruding portion 325, and the first protruding portion 323 and the second protruding portion 325 are hooked from the outside of the link member 161 to the link plates 162. At this time, the insertion portion 321 is held between the pair of link plates 162. Thus, the mounting portion 32 is mounted to the link member 161, and the rail cleaning device 31 is mounted to the drive chain 16.

[0089] On the other hand, when the rail cleaning device 31 is mounted to the drive chain 16 in the chain return path, the rail cleaning device 31 is arranged so that the second cleaning portion 332 faces the return-path-side drive rail 192 with the drive chain 16 interposed therebetween. Thereafter, the second cleaning portion 332 is brought into contact with any of the link members 161 present in the chain return path among the plurality of link members 161. At this time, the width direction of the mounting portion 32 is made to coincide with the width direction of the drive chain 16, and the thickness direction of the mounting portion 32 is made to coincide with the length direction of the drive chain 16.

[0090] Thereafter, the rail cleaning device 31 is pressed into between the pair of link plates 162. Thus, the second cleaning portion 332, the second holding portion 324, and each second protruding portion 325 pass between the pair of link plates 162, and the second cleaning portion 332 comes into contact with the return-path-side drive rail 192. At this time, each second protruding portion 325 elastically deforms and moves between the pair of link plates 162 due to the link plates 162.

[0091] When the second cleaning portion 332 contacts the return-path-side drive rail 192, each second protruding portion 325 protrudes from between the pair of link plates 162, and each second protruding portion 325 elastically deforms and returns. Thus, the link plates 162 are arranged between the first protruding portion 323 and the second protruding portion 325, and the first protruding portion 323 and the second protruding portion 325 are hooked from the outside of the link member 161 to the link plates 162. At this time, the insertion portion 321 is held between the pair of link plates 162. Thus, the mounting portion 32 is mounted to the link member 161, and the rail cleaning device 31 is mounted to the drive chain 16.

[0092] In such a rail cleaning device 31, each first protruding portion 323 protrudes from the first holding portion 322 toward the width direction of the mounting portion 32, and each second protruding portion 325 protrudes from the second holding portion 324 toward the width direction of the mounting portion 32. Therefore, it is possible to arrange the link plates 162 in the height direction of the mounting portion 32 between the first protruding portion 323 and the second protruding portion 325. Thus, it is possible to more reliably mount the mounting portion 32 to the link member 161. Therefore, it is possible to stabilize the state in which the mounting portion 32 is mounted to the link member 161.

[0093] Further, the cleaning body 33 has the first cleaning portion 331 provided to the first holding portion 322 and the second cleaning portion 332 provided to the second holding portion 324. Therefore, the outbound side drive track 191 can be cleaned by the first cleaning portion 331, and the inbound side drive track 192 can be cleaned by the second cleaning portion 332. Thus, the outbound side drive track 191 and the inbound side drive track 192 can be cleaned by the shared track cleaning device 31, respectively.

[0094] Further, the second tapered surface 43 inclined with respect to the height direction of the mounting portion 32 is formed in each second protruding portion 325. Therefore, when the track cleaning device 31 is pressed between the pair of link plates 162, each second protruding portion 325 can be guided between the pair of link plates 162 by each second tapered surface 43. Thus, when the track cleaning device 31 is pressed between the pair of link plates 162, each second protruding portion 325 can be easily elastically deformed. Therefore, the track cleaning device 31 can be more easily mounted to the drive chain 16.

[0095] Further, the mounting portion 32, the first cleaning portion 331, and the second cleaning portion 332 are integrally configured as a single member. Therefore, the number of components of the track cleaning device 31 can be reduced, and the structure of the track cleaning device 31 can be simplified. Thus, the track cleaning device 31 can be easily manufactured.

[0096] Further, the mounting portion 32, the first cleaning portion 331, and the second cleaning portion 332 are configured of polyethylene foam. Therefore, the mounting portion 32, the first cleaning portion 331, and the second cleaning portion 332 can be easily manufactured, respectively. Further, the mounting portion 32 can be easily elastically deformed, and the mounting work of mounting the mounting portion 32 to the link member 161 can be easily performed. Further, the first cleaning portion 331 and the second cleaning portion 332 can be easily elastically deformed so as to match the shape of the drive track 19, and dirt adhering to the drive track 19 can be effectively removed. Thus, the effect of cleaning the drive track 19 can be improved.

[0097] Further, in Embodiment 3, the mounting portion 32, the first cleaning portion 331, and the second cleaning portion 332 are integrally configured as a single member. However, the first cleaning portion 331 can be a member separate from the mounting portion 32. Further, the second cleaning portion 332 can be a member separate from the mounting portion 32.

[0098] Further, in Embodiment 3, the mounting portion 32 is elastically deformable. However, the mounting portion 32 can also be non-elastically deformable. In this case, when the mounting portion 32 is mounted to the link member 161, the track cleaning device 31 is inserted between the pair of link plates 162 in a state in which the width direction of the mounting portion 32 coincides with the length direction of the drive chain 16. Thereafter, the track cleaning device 31 is rotated about the center line of the mounting portion 32 in the height direction, so that the width direction of the mounting portion 32 coincides with the width direction of the drive chain 16. Thus, the link plates 162 are arranged between the first protruding portion 323 and the second protruding portion 325, and the first protruding portion 323 and the second protruding portion 325 are hooked from the outside of the link member 161 to the link plates 162. Thus, the mounting portion 32 is mounted to the link member 161. In this way, the track cleaning device 31 can also be easily mounted to the drive chain 16. In this case, the thickness direction dimension of the mounting portion 32 is made smaller than the dimension between the pair of link plates 162 in order to insert the track cleaning device 31 between the pair of link plates 162.

[0099] Further, in Embodiment 3, the pair of second protruding portions 325 protrude from the second holding portion 324. However, the number of the second protruding portions 325 protruding from the second holding portion 324 can also be one. In this way, the second protruding portion 325 can also be hooked from the outside of the link member 161 to the link plate 162, so that displacement of the track cleaning device 31 in a direction away from the drive track 19 can be prevented.

[0100] Further, in Embodiment 3, the second engaging surface 44 is perpendicular to the height direction of the mounting portion 32. However, the second engaging surface 44 can also be inclined with respect to the height direction of the mounting portion 32.

[0101] Further, in Embodiment 3, the second protruding portion 325 is provided in the entire range of the second holding portion 324 in the thickness direction of the mounting portion 32. However, the second protruding portion 325 can also be provided only in a part of the range of the second holding portion 324 in the thickness direction of the mounting portion 32.

[0102] Further, in Embodiment 3, the second tapered surface 43 is formed in the second protruding portion 325. However, the second tapered surface 43 can also not be formed in the second protruding portion 325. For example, the second protruding portion 325 can also have a plate shape.

[0103] Further, in each of the above-described embodiments, the pair of first protruding portions 323 protrude from the first holding portion 322. However, the number of the first protruding portions 323 protruding from the first holding portion 322 can also be one. In this way, the first protruding portion 323 can also be hooked from the outside of the link member 161 to the link plate 162, so that displacement of the track cleaning device 31 in a direction away from the drive track 19 can be prevented.

[0104] Further, in each of the above-described embodiments, each first protruding portion 323 protrudes from the first holding portion 322 toward the width direction of the mounting portion 32. However, it is not limited thereto, and each first protruding portion 323 can protrude from the first holding portion 322 toward a direction intersecting with the height direction of the mounting portion 32.

[0105] Further, in each of the above-described embodiments, the first engaging surface 42 is perpendicular to the height direction of the mounting portion 32. However, the first engaging surface 42 can be inclined with respect to the height direction of the mounting portion 32.

[0106] Further, in each of the above-described embodiments, the first protruding portion 323 is provided in the entire range of the first holding portion 322 in the thickness direction of the mounting portion 32. However, the first protruding portion 323 can be provided only in a part of the range of the first holding portion 322 in the thickness direction of the mounting portion 32.

[0107] Further, in each of the above-described embodiments, the first tapered surface 41 is formed in the first protruding portion 323. However, the first tapered surface 41 can not be formed in the first protruding portion 323. For example, the shape of the first protruding portion 323 can be plate-like.

[0108] Further, in each of the above-described embodiments, the plurality of drive rollers 17 provided to the drive chain 16 are each installed as a step roller to each step 4. However, only a part of the plurality of drive rollers 17 provided to the drive chain 16 can be installed as a step roller to each step 4. For example, every other drive roller 17 provided to the drive chain 16 can be installed as a step roller to each step 4.

[0109] Further, in each of the above-described embodiments, the track cleaning device 31 is applied in an escalator as a passenger conveyor. However, the track cleaning device 31 can be applied in a moving sidewalk as a passenger conveyor.

Claims

1. A track cleaning device of a passenger conveyor, wherein the track cleaning device of the passenger conveyor is provided with a mounting portion and a cleaning body, the mounting portion is mounted to a drive chain having a plurality of link members linked in a ring shape, the cleaning body is provided to the mounting portion and contacts a drive rail that guides a drive roller, each of the link members has a pair of link plates opposed to each other in a width direction of the drive chain, the drive chain is an inner roller type chain in which the drive roller is disposed between the pair of link plates, the mounting portion has an insertion portion, a first holding portion provided to one end portion of the insertion portion in a height direction of the mounting portion, and a first protruding portion protruding from the first holding portion in a direction intersecting the height direction of the mounting portion, the cleaning body has a first cleaning portion provided to the first holding portion, the mounting portion is mounted to the drive chain in a state in which the insertion portion is inserted between the pair of link plates of at least any one of the plurality of link members and the height direction of the mounting portion is perpendicular to the width direction of the drive chain so that the first protruding portion is hooked from an outer side of the link member to the link plates in the height direction of the mounting portion, the mounting portion is elastically deformable, the first protruding portion is elastically deformable and passes between the pair of link plates.

2. The track cleaning device of the passenger conveyor according to claim 1, wherein a first tapered surface inclined with respect to the height direction of the mounting portion is formed in the first protruding portion, the first tapered surface is inclined toward a direction away from the first holding portion as the insertion portion side is approached from the first cleaning portion side.

3. The track cleaning device of the passenger conveyor according to claim 1, wherein the mounting portion has a second holding portion provided to the other end portion of the insertion portion in the height direction of the mounting portion and a second protruding portion protruding from the second holding portion in a direction intersecting the height direction of the mounting portion, the cleaning body has a second cleaning portion provided to the second holding portion, the mounting portion is mounted to the drive chain in a state in which the link plates are disposed between the first protruding portion and the second protruding portion in the height direction of the mounting portion and the first protruding portion and the second protruding portion are hooked from the outer side of the link member to the link plates.

4. The track cleaning device of the passenger conveyor according to claim 2, wherein the mounting portion has a second holding portion provided to the other end portion of the insertion portion in the height direction of the mounting portion and a second protruding portion protruding from the second holding portion in a direction intersecting the height direction of the mounting portion, the cleaning body has a second cleaning portion provided to the second holding portion, the mounting portion is mounted to the drive chain in a state in which the link plates are disposed between the first protruding portion and the second protruding portion in the height direction of the mounting portion and the first protruding portion and the second protruding portion are hooked from the outer side of the link member to the link plates.

5. The track cleaning device of the passenger conveyor according to claim 3, wherein a second tapered surface inclined with respect to the height direction of the mounting portion is formed in the second protruding portion, the second tapered surface is inclined toward a direction away from the second holding portion as approaching the insertion portion side from the second cleaning portion side.

6. The track cleaning device of the passenger conveyor according to claim 4, wherein a second tapered surface inclined with respect to the height direction of the mounting portion is formed in the second protruding portion, the second tapered surface is inclined toward a direction away from the second holding portion as approaching the insertion portion side from the second cleaning portion side.

7. The track cleaning device of the passenger conveyor according to any one of claims 1 to 6, wherein the mounting portion and the cleaning body are integrally configured as a single member.

8. The track cleaning device of the passenger conveyor according to any one of claims 1 to 6, wherein the mounting portion and the cleaning body are each made of polyethylene foam.

9. The track cleaning device of the passenger conveyor according to claim 7, wherein the mounting portion and the cleaning body are each made of polyethylene foam.

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