Refueling device for passenger conveyor and passenger conveyor

Abstract

To provide an oil supply device for a passenger conveyor capable of reusing lubricating oil surplus in a handrail chain. [Solution] An oil supply device 100 for a passenger conveyor 1 that supplies lubricating oil to a step chain 11 and a handrail chain 16, and includes a step chain oil supply pipe 102a that supplies lubricating oil to the step chain 11, a handrail chain oil supply pipe 102b that supplies lubricating oil to the handrail chain 16, a handrail chain oil pan 104b where excess lubricating oil supplied to the handrail chain 16 is drained, and an excess oil supply pipe 105 that is provided in the handrail chain oil pan 104b and supplies excess lubricating oil supplied to the handrail chain 16 to the step chain 11.

Description

[Technical field]

[0001] The present disclosure relates to a passenger conveyor fueling device and a passenger conveyor. [Background technology]

[0002] A plurality of steps provided on the passenger conveyor are circulated by a step chain within the entire area of ​​a truss installed between the upper and lower floors of the building, and a moving handrail provided on the passenger conveyor is circulated by a handrail chain at the upper end of the truss.

[0003] Here, in a conventional passenger conveyor oil supply device, lubricating oil is supplied to the step chain and handrail chain, and an oil pan installed over almost the entire surface of the floor of the truss receives the lubricating oil dripping from the step chain, handrail chain, etc. (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2007-210764 A Summary of the Invention [Problem to be solved by the invention]

[0005] Generally, the step chain, which is long enough to circulate around the entire truss, is longer than the handrail chain, which is long enough to circulate around a portion of the truss. Therefore, when the necessary amount of lubricating oil is supplied to the step chain, the handrail chain is supplied with more lubricating oil than necessary. As a result, a large amount of excess oil is discharged from the handrail chain into the oil pan.

[0006] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an oil supply device for a passenger conveyor that can reuse lubricating oil that becomes surplus in the handrail chain. [Means for solving the problem]

[0007] The passenger conveyor fuel supply device according to the present disclosure is a passenger conveyor fuel supply device that supplies lubricating oil to each of a step chain and a handrail chain, and includes a step chain oil supply pipe that supplies lubricating oil to the step chain, a handrail chain oil supply pipe that supplies lubricating oil to the handrail chain, a handrail chain oil pan into which excess lubricating oil supplied to the handrail chain is drained, and an excess oil supply pipe that is provided in the handrail chain oil pan and supplies excess lubricating oil supplied to the handrail chain to the step chain.

[0008] The passenger conveyor according to the present disclosure is a passenger conveyor equipped with a passenger conveyor oil supply device that supplies lubricating oil to each of a step chain and a handrail chain, and includes a step chain oil supply pipe that supplies lubricating oil to the step chain, a handrail chain oil supply pipe that supplies lubricating oil to the handrail chain, a handrail chain oil pan where excess lubricating oil supplied to the handrail chain is drained, and an excess oil supply pipe provided in the handrail chain oil pan that supplies excess lubricating oil supplied to the handrail chain to the step chain. Effect of the Invention

[0009] According to the present disclosure, excess lubricating oil from handrail chains can be reused. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing a configuration of a passenger conveyor according to a first embodiment. [Diagram 2] 2 is a cross-sectional view taken along line AA in FIG. 1. [Diagram 3] FIG. 4 is a diagram showing the configuration of an upper end portion within a truss according to the first embodiment. [Figure 4] 4 is a diagram of the fuel supply device and its periphery in FIG. 3 as viewed from the upper side of the paper. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Embodiment 1 The configuration of the passenger conveyor 1 according to the embodiment 1 will be described. Fig. 1 is a diagram showing the configuration of the passenger conveyor 1 according to the embodiment 1. Fig. 2 is a cross-sectional view taken along line AA in Fig. 1 (however, the balustrade 5 is not shown).

[0012] In Figure 1, the passenger conveyor 1 comprises a truss 3 installed spanning between a lower floor 2a and an upper floor 2b of a building, a pair of balustrades 5 provided on the truss 3, a movable handrail 6 that moves along the pair of balustrades 5, a skirt guard 7 provided at the bottom of the pair of balustrades 5, and boarding and alighting plates 8a and 8b provided on the lower floor 2a and upper floor 2b for passengers to board and alight on the passenger conveyor 1.

[0013] As shown in Fig. 1, a plurality of steps 4, a step chain 11, and a guide rail 12 along which the steps 4 move are provided throughout the truss 3. Also, provided at the upper end of the truss 3 are a step drive sprocket 9a which is a rotatable gear-shaped member, a drive unit 10 which supplies power to the members in the passenger conveyor 1, a drive sprocket 9c which receives power from the drive unit 10 and transmits it to the members, and a main shaft 9d (not shown in Fig. 1) which connects the step drive sprocket 9a and the drive sprocket 9c. Also, provided at the lower end of the truss 3 is a step driven sprocket 9b which is a gear-shaped member which rotates as the step chain 11 rotates.

[0014] As shown in FIG. 1, the steps 4 are connected endlessly so as to move cyclically within the truss 3. Also, as shown in FIGS. 1 and 2, each step 4 has a front wheel 13a attached to its front end in the moving direction, and a rear wheel 13b attached to its rear end in the moving direction. The front wheel 13a and the rear wheel 13b are attached to the left and right sides of each step 4 in the width direction. Also, as shown in FIG. 2, the front side of each step 4 in the moving direction is supported by a step shaft 14 attached to the step chain 11. Also, the rear side of each step 4 in the moving direction is supported by the rear wheel 13b. When a passenger stands on the step 4, the weight of the passenger is supported by the front wheel 13a and the rear wheel 13b.

[0015] The step chain 11 is made up of a series of links, each of which is connected by a pin. The step chain 11 is wound around a step driving sprocket 9a and a step driven sprocket 9b, and is connected to a plurality of steps 4.

[0016] Here, the movement of the multiple steps 4 will be described. First, the drive sprocket 9c receives power from the drive unit 10. This power is transmitted from the drive sprocket 9c to the step drive sprocket 9a via the main shaft 9d that connects the drive sprocket 9c and the step drive sprocket 9a. This power rotates the step drive sprocket 9a, and the gears of the step drive sprocket 9a mesh with the pins of the links of the step chain 11, causing the step chain 11 to rotate. When the step chain 11 rotates, the step driven sprocket 9b also rotates. In this way, when the step chain 11 rotates at a constant speed by each sprocket, power is transmitted to the multiple steps 4 connected to the step chain 11, and the multiple steps 4 move on the guide rail 12.

[0017] The configuration of the upper end portion within the truss 3 will be described in more detail. Fig. 3 is a diagram showing the configuration of the upper end portion within the truss 3 according to the first embodiment. Note that some of the steps 4 and guide rails 12 are omitted from Fig. 3. Fig. 4 is a diagram showing the periphery of the fuel supply device 100 in Fig. 3 as viewed from the upper side of the paper.

[0018] As shown in Figures 3 and 4, the upper end of the truss 3 is equipped with a drive unit 10, a drive sprocket 9c, a step drive sprocket 9a, a step chain 11, a handrail drive sprocket 15a, a handrail driven sprocket 15b, a handrail chain 16, a sheave 17, a main shaft 9d connecting the drive sprocket 9c and the step drive sprocket 9a, and the drive sprocket 9c and the handrail drive sprocket 15a, a handrail main shaft 15c connecting the handrail driven sprocket 15b and the sheave 17, and an oil supply unit 100 that supplies lubricating oil to the step chain 11 and the handrail chain 16.

[0019] The handrail drive sprocket 15a is a rotatable gear-shaped member that receives power from the drive device 10. The handrail driven sprocket 15b is a rotatable gear-shaped member that rotates as the handrail chain 16 rotates. The handrail chain 16 is made up of a series of links, each of which is connected by a pin. The handrail chain 16 is wound around the handrail drive sprocket 15a and the handrail driven sprocket 15b. The sheave 17 is a disk-shaped member that rotates as the handrail chain 16 rotates, transmitting power to the moving handrail 6 and moving the moving handrail 6.

[0020] Here, the movement of the moving handrail 6 will be described. First, the driving sprocket 9c receives power from the driving device 10. This power is transmitted from the driving sprocket 9c to the handrail driving sprocket 15a via the main shaft 9d that connects the driving sprocket 9c and the handrail driving sprocket 15a. This power rotates the handrail driving sprocket 15a, and the gear of the handrail driving sprocket 15a meshes with the pin of the link of the handrail chain 16, causing the handrail chain 16 to rotate. In addition, the handrail driven sprocket 15b also rotates due to the rotation of the handrail chain 16. The handrail driven sprocket 15b and the sheave 17 are connected via the handrail main shaft 15c, and when the handrail driven sprocket 15b rotates, the sheave 17 rotates. When the power is transmitted to the moving handrail 6 by the sheave 17, the moving handrail 6 moves.

[0021] The oil supply device 100 comprises an oil supply tank 101, an oil supply pipe 102a for the step chain, an oil supply pipe 102b for the handrail chain, an oil supply nozzle 103a for the step chain, an oil supply nozzle 103b for the handrail chain, an oil pan 104a for the step chain, an oil pan 104b for the handrail chain, an excess oil supply pipe 105, an excess oil supply nozzle 106, a filter 107, and an excess oil discharge pipe 108.

[0022] The oil supply tank 101 stores lubricating oil to be supplied to the step chain 11 and the handrail chain 16. This lubricating oil is supplied to each chain in order to reduce friction and wear of the chains, thereby extending their lifespan, and to prevent rust from forming on the chains. The oil supply tank 101 is provided with an oil supply pipe for supplying lubricating oil from above to the step chain 11 and the handrail chain 16, and the lubricating oil is supplied from the oil supply pipe, with excess oil being drained by gravity into the oil pan.

[0023] Specifically, lubricating oil is supplied to the step chain 11 from a step chain oil supply pipe 102a, and excess oil generated in the step chain is discharged to a step chain oil pan 104a. In this case, if a step chain oil supply nozzle 103a is provided on the step chain oil supply pipe 102a as shown in Fig. 3, the flow rate of excess oil discharged to the step chain oil pan 104a by the step chain oil supply nozzle 103a can be adjusted.

[0024] Lubricating oil is supplied to the handrail chain 16 from the handrail chain oil supply pipe 102b, and excess oil is discharged into the handrail chain oil pan 104b. If a handrail chain oil supply nozzle 103b is provided on the handrail chain oil supply pipe 102b as shown in Fig. 3, the flow rate of excess oil discharged into the handrail chain oil pan 104b by the handrail chain oil supply nozzle 103b can be adjusted.

[0025] The step chain oil pan 104a is disposed along the longitudinal direction of the guide rail 12 provided on the return path so as to receive excess oil discharged from the step chain 11. The handrail chain oil pan 104b is disposed under the entire handrail chain 16 so as to receive excess oil discharged from the handrail chain 16.

[0026] Here, in the case where the oil supply device 100 does not use a device for adjusting the amount of oil supplied, the same amount of oil is periodically supplied from the oil supply tank 101 to the step chain 11 and the handrail chain 16. In general, the step chain 11, which has a length that allows it to circulate throughout the entire area of ​​the truss 3, is longer than the handrail chain 16, which has a length that allows it to circulate partially within the truss 3. Therefore, the amount of oil supplied to the step chain 11 and the handrail chain 16 is set based on the amount of oil required for the step chain 11. Therefore, if the necessary amount of lubricating oil is supplied to the step chain 11, more lubricating oil than necessary is supplied to the handrail chain 16. Then, a large amount of surplus oil (hereinafter, surplus oil) of the lubricating oil supplied to the handrail chain 16 is discharged from the handrail chain 16 to the handrail chain oil pan 104b.

[0027] Therefore, the oiling device 100 according to the first embodiment has a configuration in which surplus oil discharged into a handrail chain oil pan 104b, which is currently discarded, is supplied by gravity from an surplus oil supply pipe 105 provided in the handrail chain oil pan 104b to the step chain 11 for reuse. Note that, as shown in Figures 3 and 4, if an surplus oil supply nozzle 106 is provided in the surplus oil supply pipe 105, the flow rate of surplus oil discharged into the step chain 11 by the surplus oil supply nozzle 106 can be adjusted.

[0028] In Fig. 4, the surplus oil supply pipe 105 has an end that is branched to the left and right, which discharges the surplus oil. The surplus oil supplied from the handrail chain oil pan 104b is supplied to the step chains 11 provided on the left and right sides of each step 4 in the width direction, respectively, by the surplus oil supply pipe 105 having the above-mentioned shape.

[0029] 3, the surplus oil supply pipe 105 is provided at a position higher than the bottom surface of the handrail chain oil pan 104b. This configuration reduces the intrusion of rubbish, dust, and the like that has settled near the bottom surface of the handrail chain oil pan 104b into the surplus oil supply pipe 105.

[0030] As shown in Figures 3 and 4, filter 107 is provided in handrail chain oil pan 104b so as to cover the entrance of surplus oil supply pipe 105. Filter 107 is, for example, sponge-like. Filter 107 allows surplus oil to pass through while capturing debris, dust, and the like that has gotten into handrail chain oil pan 104b. The surplus oil that has passed through filter 107 flows into surplus oil supply pipe 105. Therefore, this configuration can reduce the intrusion of debris, dust, and the like contained in the surplus oil into surplus oil supply pipe 105.

[0031] As shown in Figures 3 and 4, the surplus oil drain pipe 108 is provided in the handrail chain oil pan 104b at a higher position than the surplus oil supply pipe 105, and drains the surplus oil of the lubricating oil supplied to the handrail chain 16 to the step chain oil pan 104a. With this configuration, even if the inlet of the surplus oil supply pipe 105 is blocked for some reason and the surplus oil does not flow to the surplus oil supply pipe 105, the surplus oil can be drained to the step chain oil pan 104a, and the surplus oil can be prevented from overflowing from the handrail chain oil pan 104b. Examples of when the inlet of the surplus oil supply pipe 105 is blocked include when rubbish falls into the inlet of the surplus oil supply pipe 105 or when the filter 107 becomes clogged.

[0032] As described above, the passenger conveyor fuel supply device 100 in embodiment 1 is a passenger conveyor 1 fuel supply device 100 that supplies lubricating oil to each of the step chain 11 and the handrail chain 16, and is equipped with a step chain oil supply pipe 102a that supplies lubricating oil to the step chain 11, a handrail chain oil supply pipe 102b that supplies lubricating oil to the handrail chain 16, a handrail chain oil pan 104b where excess lubricating oil supplied to the handrail chain 16 is drained, and an excess oil supply pipe 105 that is provided in the handrail chain oil pan 104b and supplies excess lubricating oil supplied to the handrail chain 16 to the step chain 11, thereby making it possible to reuse excess lubricating oil in the handrail chain 16.

[0033] Furthermore, the fuel supply device 100 for a passenger conveyor according to the first embodiment may supply the amount of fuel required for the step chain 11 to the step chain 11 and the handrail chain 16, respectively.

[0034] The surplus oil discharged into the handrail chain oil pan 104b only needs to be able to be supplied to the step chain 11, and there is no limitation on the members through which the surplus oil is supplied to the step chain 11. For example, the surplus oil supply nozzle 106 need not be used, and only the surplus oil supply pipe 105 may be used. The lubricating oil supplied from the oil supply tank 101 only needs to be able to be supplied to the step chain 11 and the handrail chain 16, and there is no limitation on the members through which the lubricating oil is supplied to the step chain 11 and the handrail chain 16. For example, the step chain oil supply nozzle 103a need not be used, and only the step chain oil supply pipe 102a may be used, and the handrail chain oil supply nozzle 103b need not be used, and only the handrail chain oil supply pipe 102b may be used.

[0035] Furthermore, in the passenger conveyor fueling device 100 according to the first embodiment, the amount of oil supplied to the handrail chain 16 may be based on the amount of oil supplied to the step chain 11. By adjusting the amount of oil supplied, it is possible to prevent excess oil supplied to the handrail chain 16 from being excessively supplied to the step chain 11. Furthermore, by adjusting the amount of oil supplied, it is possible to reduce the total amount of lubricating oil supplied to the step chain 11 and the handrail chain 16.

[0036] Alternatively, a single oil supply tank 101 may be provided in which lubricating oil to be supplied to the step chain 11 and the handrail chain 16 is stored, and the step chain oil supply pipe 102a supplies lubricating oil from the oil supply tank 101 to the step chain 11, while the handrail chain oil supply pipe 102b supplies lubricating oil from the oil supply tank 101 to the handrail chain. By consolidating the oil supply tanks 101 into one, it is possible to reduce the number of components required in the oil supply device 100.

[0037] Furthermore, the surplus oil supply pipe 105 supplies the surplus lubricating oil supplied to the handrail chain 16 to the step chains 11 provided on the left and right sides of the width direction of the step 4, respectively, making it possible to make effective use of the surplus oil without waste. Here, the surplus oil supply pipe 105 may have a shape branched to the left and right, and supply surplus oil to each of the step chains 11 provided on the left and right sides of the width direction of the step 4. Furthermore, two surplus oil supply pipes 105 may be provided, and surplus oil may be supplied to each of the step chains 11 provided on the left and right sides of the width direction of the step 4.

[0038] The surplus oil supply pipe 105 may be configured to be able to adjust the amount of surplus oil supplied to the left and right. For example, the surplus oil supply pipe 105 may be one in which the left and right branches have different pipe diameters. For example, the surplus oil supply pipe 105 may be one in which the left and right branches are each provided with a surplus oil supply nozzle 106, and the amount of oil supplied may be adjusted by the surplus oil supply nozzle 106.

[0039] There is no limitation on the shape of the surplus oil supply pipe 105. For example, when using a hollow cylindrical surplus oil supply pipe 105 having no branches, the surplus oil may be supplied to the step chain 11 provided on either the left or right side of each step 4 in the width direction.

[0040] In addition, by positioning the surplus oil supply pipe 105 at a position higher than the bottom surface of the handrail chain oil pan 104b, it is possible to prevent debris, dust, etc. that has settled near the bottom surface of the handrail chain oil pan 104b from entering the surplus oil supply pipe 105.

[0041] In addition, a filter 107 is installed within the handrail chain oil pan 104b so as to cover the entrance of the excess oil supply pipe 105, thereby preventing debris, dust, etc. contained in the excess oil from entering the excess oil supply pipe 105.

[0042] The shape of filter 107 is not limited as long as it is provided inside handrail chain oil pan 104b so as to cover the inlet of surplus oil supply pipe 105. For example, mesh filter 107 may be installed so as to cover the entire inside bottom surface of handrail chain oil pan 104b. In this case, even if surplus oil supply pipe 105 is provided directly below the bottom surface of handrail chain oil pan 104b, it is possible to supply surplus oil free of rubbish, dust, etc. to step chain 11.

[0043] Moreover, the surplus oil drain pipe 108 is provided in a position higher than the surplus oil supply pipe in the handrail chain oil pan 104b, and drains surplus oil of the lubricating oil supplied to the handrail chain 16 into the step chain oil pan 104a. With this configuration, even if the inlet of the surplus oil supply pipe 105 is blocked and surplus oil does not flow into the surplus oil supply pipe 105, it is possible to prevent surplus oil from overflowing from the handrail chain oil pan 104b.

[0044] In the first embodiment, an example has been described in which the oil supply device 100 is equipped with the filter 107 and the excess oil drain pipe 108, but it is sufficient if the oil supply device 100 is equipped with at least an oil supply pipe 102a for the step chain, an oil supply pipe 102b for the handrail chain, an oil pan 104b for the handrail chain, and an excess oil supply pipe 105.

[0045] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) An oil supply device for a passenger conveyor that supplies lubricating oil to a step chain and a handrail chain, a step chain oil supply pipe for supplying lubricating oil to the step chain; a handrail chain oil supply pipe for supplying lubricating oil to the handrail chain; a handrail chain oil pan into which excess lubricating oil supplied to the handrail chain is discharged; an excess oil supply pipe provided in the handrail chain oil pan and supplying excess oil of the lubricating oil supplied to the handrail chain to the step chain; A passenger conveyor fuel supply device comprising: (Appendix 2) The amount of oil to be supplied to the handrail chain is determined based on the amount of oil to be supplied to the step chain. Refueling device for a passenger conveyor as described in appendix 1. (Appendix 3) The step chain and the handrail chain are respectively lubricated with the amount of lubricant required for the step chain. Refueling device for a passenger conveyor as described in appendix 1. (Appendix 4) a lubricating oil tank for storing lubricating oil to be supplied to the step chain and the handrail chain; the step chain oil supply pipe supplies lubricating oil from the oil supply tank to the step chain, The handrail chain oil supply pipe supplies lubricating oil from the oil supply tank to the handrail chain. 4. A fuel supply device for a passenger conveyor according to any one of claims 1 to 3. (Appendix 5) A filter is provided in the handrail chain oil pan so as to cover the inlet of the surplus oil supply pipe. 5. A fuel supply device for a passenger conveyor according to any one of appendixes 1 to 4. (Appendix 6) The surplus oil supply pipe is provided at a position higher than the bottom surface of the handrail chain oil pan. 6. A fuel supply device for a passenger conveyor according to any one of appendixes 1 to 5. (Appendix 7) The step chains are provided on the left and right sides of the step in the width direction, The surplus oil supply pipe supplies the surplus oil of the lubricating oil supplied to the handrail chain to the step chains provided on the left and right sides in the width direction of the step. 7. A fuel supply device for a passenger conveyor according to any one of claims 1 to 6. (Appendix 8) The handrail chain oil pan is provided with an excess oil discharge pipe that is disposed at a position higher than the excess oil supply pipe and that discharges excess oil of the lubricating oil supplied to the handrail chain into the step chain oil pan. 8. A fuel supply device for a passenger conveyor according to any one of appendixes 1 to 7. (Appendix 9) A passenger conveyor including an oil supply device for supplying lubricating oil to each of a step chain and a handrail chain, a step chain oil supply pipe for supplying lubricating oil to the step chain; a handrail chain oil supply pipe for supplying lubricating oil to the handrail chain; a handrail chain oil pan into which excess lubricating oil supplied to the handrail chain is discharged; an excess oil supply pipe provided in the handrail chain oil pan and supplying excess oil of the lubricating oil supplied to the handrail chain to the step chain; A passenger conveyor comprising: [Explanation of symbols]

[0046] 1 passenger conveyor, 2a lower floor, 2b upper floor, 3 truss, 4 step, 5 balustrade, 6 moving handrail, 7 skirt guard, 8a, 8b boarding and alighting board, 9a step drive sprocket, 9b step driven sprocket, 9c drive sprocket, 9d main shaft, 10 drive device, 11 step chain, 12 guide rail, 13a front wheel, 13b rear wheel, 14 step shaft, 15a handrail drive sprocket, 15b handrail driven sprocket, 15c handrail main shaft, 16 handrail chain, 17 sheave, 100 oil supply device, 101 oil supply tank, 102a step chain oil supply pipe, 102b handrail chain oil supply pipe, 103a step chain oil supply nozzle, 103b Oil supply nozzle for handrail chain, 104a oil pan for step chain, 104b oil pan for handrail chain, 105 excess oil supply pipe, 106 excess oil supply nozzle, 107 filter, 108 excess oil discharge pipe

Claims

1. An oil supply device for a passenger conveyor that supplies lubricating oil to a step chain and a handrail chain, a step chain oil supply pipe for supplying lubricating oil to the step chain; a handrail chain oil supply pipe for supplying lubricating oil to the handrail chain; a handrail chain oil pan into which excess lubricating oil supplied to the handrail chain is discharged; an excess oil supply pipe provided in the handrail chain oil pan and supplying excess oil of the lubricating oil supplied to the handrail chain to the step chain; A passenger conveyor fuel supply device comprising:

2. The amount of oil to be supplied to the handrail chain is determined based on the amount of oil to be supplied to the step chain.

2. A passenger conveyor fuel supply system as claimed in claim 1.

3. An amount of oil required for the step chain is supplied to the step chain, and an amount of oil required for the step chain is supplied to the handrail chain.

2. A fuel supply device for a passenger conveyor according to claim 1.

4. a lubricating oil tank for storing lubricating oil to be supplied to the step chain and the handrail chain; the step chain oil supply pipe supplies lubricating oil from the oil supply tank to the step chain, The handrail chain oil supply pipe supplies lubricating oil from the oil supply tank to the handrail chain. A fuel supply device for a passenger conveyor according to any one of claims 1 to 3.

5. A filter is provided in the handrail chain oil pan so as to cover the inlet of the surplus oil supply pipe. A fuel supply device for a passenger conveyor according to any one of claims 1 to 3.

6. The surplus oil supply pipe is provided at a position higher than the bottom surface of the handrail chain oil pan. A fuel supply device for a passenger conveyor according to any one of claims 1 to 3.

7. The step chains are provided on the left and right sides of the step in the width direction, The surplus oil supply pipe supplies the surplus oil of the lubricating oil supplied to the handrail chain to the step chains provided on the left and right sides in the width direction of the step. A fuel supply device for a passenger conveyor according to any one of claims 1 to 3.

8. The handrail chain oil pan is provided with an excess oil discharge pipe that is disposed at a position higher than the excess oil supply pipe and that discharges excess oil of the lubricating oil supplied to the handrail chain into the step chain oil pan. A fuel supply device for a passenger conveyor according to any one of claims 1 to 3.

9. A passenger conveyor including an oil supply device for supplying lubricating oil to each of a step chain and a handrail chain, a step chain oil supply pipe for supplying lubricating oil to the step chain; a handrail chain oil supply pipe for supplying lubricating oil to the handrail chain; a handrail chain oil pan into which excess lubricating oil supplied to the handrail chain is discharged; an excess oil supply pipe provided in the handrail chain oil pan and supplying excess oil of the lubricating oil supplied to the handrail chain to the step chain; A passenger conveyor comprising:

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