Passenger conveyor oil supply device and passenger conveyor

Abstract

To provide a passenger conveyor oil supply device capable of recycling lubrication oil which has become surplus on a handrail chain.SOLUTION: An oil supply device 100 for a passenger conveyor 1, which supplies lubrication oil to each of a footstep chain 11 and a handrail chain 16, comprises: a footstep chain oil supply pipe 102a for supplying the lubrication oil to the footstep chain 11; a handrail chain oil supply pipe 102b for supplying the lubrication oil to the handrail chain 16; a handrail chain oil pan 104b to which surplus oil of the lubrication oil supplied to the handrail chain 16 is discharged; and a surplus oil supply pipe 105 provided in the handrail chain oil pan 104b to supply the surplus oil of the lubrication oil supplied to the handrail chain 16 to the footstep chain 11.SELECTED DRAWING: Figure 3

Description

[Technical Field]

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

[0002] The passenger conveyor's multiple steps are circulated by a step chain through the entire area of ​​a truss structure installed between the upper and lower floors of the building, and the passenger conveyor's moving handrails are circulated along the upper end of the truss structure by a handrail chain.

[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 floor surface of the truss collects 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] Japanese Patent Application Laid-Open No. 2007-210764 Summary of the Invention [Problem to be solved by the invention]

[0005] Generally, step chains, which are long enough to circulate throughout the entire truss, are longer than handrail chains, which are long enough to circulate only part of the truss. Therefore, if the necessary amount of lubricating oil is supplied to the step chain, more lubricating oil than necessary is supplied to the handrail chain. 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 a passenger conveyor oil supply device that can reuse excess lubricating oil from handrail chains. [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 that drains excess lubricating oil supplied to the handrail chain, 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 is equipped with 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 that drains excess lubricating oil supplied to the handrail chain, 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. [Effects of the Invention]

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

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

[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 across a lower floor 2a and an upper floor 2b of a building, a pair of balustrades 5 installed on the truss 3, a moving handrail 6 that moves along the pair of balustrades 5, a skirt guard 7 installed at the bottom of the pair of balustrades 5, and boarding and alighting boards 8a and 8b installed 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 guide rails 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 that supplies power to the members in the passenger conveyor 1, a drive sprocket 9c that receives power from the drive unit 10 and transmits it to the members, and a main shaft 9d (not shown in Fig. 1) that 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 that rotates as the step chain 11 rotates.

[0014] As shown in FIG. 1, the steps 4 are connected endlessly so as to move circulatingly within the truss 3. As shown in FIGS. 1 and 2, each step 4 has a front wheel 13a attached to its front end in the direction of movement and a rear wheel 13b attached to its rear end in the direction of movement. One front wheel 13a and one rear wheel 13b are attached to each of the left and right sides of the width of each step 4. As shown in FIG. 2, the front side of each step 4 in the direction of movement is supported by a step shaft 14 attached to the step chain 11. The rear side of each step 4 in the direction of movement is supported by the rear wheel 13b. When a passenger stands on a 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 connected by a pin. The step chain 11 is wound around a step drive sprocket 9a and a step driven sprocket 9b, and is connected to multiple steps 4.

[0016] Here, we will explain how the multiple steps 4 move. 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, which connects the drive sprocket 9c and the step drive sprocket 9a. This power causes the step drive sprocket 9a to rotate, 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. As the step chain 11 rotates, the step driven sprocket 9b also rotates. In this way, as the step chain 11 rotates at a constant speed via 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 not shown in Fig. 3. Fig. 4 is a view of the periphery of the fuel supply device 100 in Fig. 3 as seen from the top 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 unit 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 it.

[0020] Here, we will explain how the moving handrail 6 moves. First, the drive sprocket 9c receives power from the drive unit 10. This power is transmitted from the drive sprocket 9c to the handrail drive sprocket 15a via the main shaft 9d, which connects the drive sprocket 9c and the handrail drive sprocket 15a. This power causes the handrail drive sprocket 15a to rotate, and the gear of the handrail drive sprocket 15a meshes with the pin of the link of the handrail chain 16, causing the handrail chain 16 to rotate. The rotation of the handrail chain 16 also causes the handrail driven sprocket 15b to rotate. The handrail driven sprocket 15b and sheave 17 are connected via the handrail main shaft 15c, and when the handrail driven sprocket 15b rotates, the sheave 17 rotates. When 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 oil supply pipe 105, an excess oil 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 chains 11 and handrail chains 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 chains 11 and handrail chains 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 by the step chain is discharged into a step chain oil pan 104a. If a step chain oil supply nozzle 103a is provided on the step chain oil supply pipe 102a as shown in Figure 3, the flow rate of excess oil discharged into the step chain oil pan 104a can be adjusted by the step chain oil supply nozzle 103a.

[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 Figure 3, the flow rate of excess oil discharged into the handrail chain oil pan 104b can be adjusted by the handrail chain oil supply nozzle 103b.

[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 below the entire handrail chain 16 so as to receive excess oil discharged from the handrail chain 16.

[0026] Here, if 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. Generally, the step chain 11, which is long enough to circulate throughout the entire truss 3, is longer than the handrail chain 16, which is long enough to circulate within a portion of 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 will be supplied to the handrail chain 16. As a result, a large amount of surplus oil (hereinafter referred to as surplus oil) of the lubricating oil supplied to the handrail chain 16 will be discharged from the handrail chain 16 to the handrail chain oil pan 104b.

[0027] Therefore, the oil supply device 100 according to the first embodiment is configured to reuse excess oil that has been discharged into a currently discarded handrail chain oil pan 104b by supplying it by gravity from an excess oil supply pipe 105 provided in the handrail chain oil pan 104b to the step chain 11. As shown in Figures 3 and 4, if an excess oil supply nozzle 106 is provided in the excess oil supply pipe 105, the flow rate of excess oil discharged into the step chain 11 can be adjusted by the excess oil supply nozzle 106.

[0028] In Figure 4, the end of the surplus oil supply pipe 105 that discharges the surplus oil is branched to the left and right. 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 by the surplus oil supply pipe 105 having the above-mentioned shape.

[0029] 3, the surplus oil supply pipe 105 is installed at a position higher than the bottom surface of the handrail chain oil pan 104b. This configuration reduces the amount of debris and dust that has settled near the bottom surface of the handrail chain oil pan 104b entering the surplus oil supply pipe 105.

[0030] As shown in Figures 3 and 4, the filter 107 is installed inside the handrail chain oil pan 104b so as to cover the entrance to the surplus oil supply pipe 105. The filter 107 is, for example, sponge-like. The filter 107 captures debris, dust, and other particles that have become mixed in on the handrail chain oil pan 104b while allowing the surplus oil to pass through. The surplus oil that passes through the filter 107 flows into the surplus oil supply pipe 105. Therefore, this configuration reduces the amount of debris, dust, and other particles contained in the surplus oil that enters the surplus oil supply pipe 105.

[0031] 3 and 4, the excess oil discharge pipe 108 is located in the handrail chain oil pan 104b at a higher position than the excess oil supply pipe 105, and discharges excess lubricating oil supplied to the handrail chain 16 into the step chain oil pan 104a. With this configuration, even if the inlet of the excess oil supply pipe 105 is blocked for some reason and the excess oil does not flow into the excess oil supply pipe 105, the excess oil can still be discharged into the step chain oil pan 104a, preventing excess oil from overflowing from the handrail chain oil pan 104b. Examples of when the inlet of the excess oil supply pipe 105 may be 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 according to the first embodiment is a passenger conveyor fuel supply device 100 that supplies lubricating oil to 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 that drains excess lubricating oil supplied to the handrail chain 16, 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 enabling excess lubricating oil in the handrail chain 16 to be reused.

[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 excess oil discharged into the handrail chain oil pan 104b need only be able to be supplied to the step chain 11, and there are no limitations on the parts through which the excess oil is supplied to the step chain 11. For example, the excess oil supply nozzle 106 need not be used, and only the excess oil supply pipe 105 may be used. Furthermore, the lubricating oil supplied from the oil supply tank 101 need only be able to be supplied to the step chain 11 and the handrail chain 16, and there are no limitations on the parts 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, or 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 lubricating oil supplied to the handrail chain 16 from being supplied in excess 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 to store lubricating oil to be supplied to the step chain 11 and the handrail chain 16, with the step chain oil supply pipe 102a supplying lubricating oil from the oil supply tank 101 to the step chain 11 and the handrail chain oil supply pipe 102b supplying 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 of the step 4, thereby making effective use of the surplus oil without waste. Here, the surplus oil supply pipe 105 may be shaped so that it branches out to the left and right, and the surplus oil may be supplied to the step chains 11 provided on the left and right sides of the width of the step 4, respectively. Alternatively, two surplus oil supply pipes 105 may be provided, and the surplus oil may be supplied to the step chains 11 provided on the left and right sides of the width of the step 4, respectively.

[0038] The surplus oil supply pipe 105 may also 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 diameters. For example, the surplus oil supply pipe 105 may be one in which the left and right branches are each provided with an surplus oil supply nozzle 106, and the amount of oil supplied may be adjusted by the surplus oil supply nozzle 106.

[0039] There are no limitations on the shape of the surplus oil supply pipe 105. For example, if a hollow cylindrical surplus oil supply pipe 105 without branches is used, 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 installing 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 inside 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 the filter 107 is not limited as long as it is placed inside the handrail chain oil pan 104b so as to cover the entrance to the surplus oil supply pipe 105. For example, a mesh filter 107 may be installed so as to cover the entire bottom surface inside the handrail chain oil pan 104b. In this case, even if the surplus oil supply pipe 105 is placed directly below the bottom surface of the handrail chain oil pan 104b, it is still possible to supply surplus oil that is free of debris, dust, and the like to the step chain 11.

[0043] Additionally, the excess oil discharge pipe 108 is located in the handrail chain oil pan 104b at a higher position than the excess oil supply pipe, and discharges excess lubricating oil supplied to the handrail chain 16 into the step chain oil pan 104a. With this configuration, even if the inlet of the excess oil supply pipe 105 is blocked and excess oil does not flow into the excess oil supply pipe 105, excess oil can be prevented from overflowing from the handrail chain oil pan 104b.

[0044] In the first embodiment, an example was described in which the oil supply device 100 is equipped with a filter 107 and an excess oil discharge 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 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 for supplying excess oil of the lubricating oil supplied to the handrail chain to the step chain; A passenger conveyor fueling device comprising: (Appendix 2) The amount of oil supplied to the handrail chain is determined based on the amount of oil supplied to the step chain. Refueling equipment for a passenger conveyor as described in Appendix 1. (Appendix 3) The step chain and the handrail chain are respectively supplied with the amount of oil required for the step chain. Refueling equipment for a passenger conveyor as described in Appendix 1. (Appendix 4) a single oil supply 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 appendices 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 passenger conveyor fueling device according to any one of appendices 1 to 4. (Appendix 6) The excess oil supply pipe is provided at a position higher than the bottom surface of the handrail chain oil pan. 6. A passenger conveyor fueling device according to any one of appendices 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 surplus lubricating oil supplied to the handrail chain to the step chains provided on the left and right sides of the step width direction. 7. A fuel supply device for a passenger conveyor according to any one of appendices 1 to 6. (Appendix 8) The handrail chain oil pan is provided with an excess oil discharge pipe that is located at a higher position 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 passenger conveyor fueling device according to any one of appendices 1 to 7. (Appendix 9) A passenger conveyor equipped with an oil supply device for a passenger conveyor that supplies 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 for 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 parapet, 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 Handrail chain oil supply nozzle, 104a step chain oil pan, 104b handrail chain oil pan, 105 excess oil oil supply pipe, 106 excess oil 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 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 for supplying excess oil of the lubricating oil supplied to the handrail chain to the step chain; A passenger conveyor fueling device comprising:

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

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

3. The step chain and the handrail chain are respectively supplied with the amount of oil required for the step chain.

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

4. a single oil supply 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 excess 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 surplus lubricating oil supplied to the handrail chain to the step chains provided on the left and right sides of the step width direction. 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 located at a higher position 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 equipped with an oil supply device for a passenger conveyor that supplies 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 for supplying excess oil of the lubricating oil supplied to the handrail chain to the step chain; A passenger conveyor comprising:

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