Man Conveyor

Abstract

To provide a passenger conveyor capable of suppressing the occurrence of variations in the amount of oil supplied to a chain. [Solution] The people conveyor comprises steps on which people stand, a circular chain connected to the steps and which rotates to allow the steps to move, an oil supply unit which supplies oil to the chain, a human detection unit which detects people, and a processing device which controls the oil supply unit, the processing device determines whether or not a person is present based on detection by the human detection unit, and if it determines that a person is present, it sets the chain to a first speed state in which the running speed of the chain is a first speed, and if it determines that no person is present, it sets the chain to a second speed state in which the running speed of the chain is a second speed slower than the first speed, the amount of oil supplied per unit time by the oil supply unit is constant, and the processing device controls the oil supply unit so that when it is time to supply oil, it supplies oil to each area of ​​the chain a number of times according to the running speed at the time of supplying oil.

Description

[Technical field]

[0001] This specification relates to a people conveyor. [Background technology]

[0002] Conventionally, for example, a passenger conveyor is equipped with steps on which passengers stand, a circular chain that is connected to the steps and rotates to allow the steps to travel, and an oil supply unit that supplies oil to the chain (for example, Patent Document 1). According to the passenger conveyor of Patent Document 1, the amount of oil that the oil supply unit supplies per unit time is constant regardless of the travel speed of the steps.

[0003] As a result, when the chain travel speed is high, the amount of oil supplied per unit length of the chain becomes relatively small, and when the chain travel speed is low, the amount of oil supplied per unit length of the chain becomes relatively large, resulting in variation in the amount of oil supplied per unit length of the chain. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 7-305797 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, an object of the present invention is to provide a passenger conveyor that can suppress variations in the amount of oil supplied to the chain. [Means for solving the problem]

[0006] Man conveyor is Steps for people to climb, a circular chain connected to the step and rotating to cause the step to travel; an oil supply unit that supplies oil to the chain; A person detection unit that detects a person; A processing device for controlling the refueling unit, the processing device determines the presence or absence of a person based on the detection by the human detection unit, and when it is determined that a person is present, sets a first speed state in which the running speed of the chain is a first speed, and when it is determined that no person is present, sets a second speed state in which the running speed of the chain is a second speed slower than the first speed, The amount of fuel that the fuel supply unit supplies per unit time is constant, When it is time to refuel, the processing device controls the refueling unit so that refueling is performed for each region of the chain a number of times according to the traveling speed at the time of refueling. [Brief description of the drawings]

[0007] [Figure 1] Schematic diagram of a man conveyor according to an embodiment. [Diagram 2] FIG. 1 is a diagram showing a main part of a passenger conveyor according to the embodiment; [Diagram 3] FIG. 1 is a diagram showing a main part of a passenger conveyor according to the embodiment; [Figure 4] Control block diagram of the passenger conveyor according to the embodiment. [Diagram 5] Flow diagram of oil supply control for the passenger conveyor according to the embodiment [Figure 6] FIG. 4 is a time chart showing an example of a fuel supply position, a speed state, and a fuel supply state according to the embodiment; [Figure 7] FIG. 11 is a time chart showing another example of the refueling position, the speed state, and the refueling state according to the embodiment; [Figure 8] FIG. 11 is a time chart showing still another example of the refueling position, the speed state, and the refueling state according to the embodiment; [Figure 9] FIG. 11 is a time chart showing still another example of the refueling position, the speed state, and the refueling state according to the embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] In each drawing, the dimensions of the components may be enlarged or reduced relative to the actual dimensions in order to facilitate understanding, and the dimensional ratios between the drawings may not be consistent. Note that in each drawing, some of the components may be omitted in order to facilitate understanding.

[0009] Terms including ordinal numbers such as first, second, etc. are used to describe various components, but these terms are used only for the purpose of distinguishing one component from another, and the components are not particularly limited by these terms. The number of components including ordinal numbers is not particularly limited, and may be, for example, one. In addition, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

[0010] Hereinafter, one embodiment of the passenger conveyor will be described with reference to Figures 1 to 9. Note that the following embodiment is provided as an example to aid in understanding the configuration of the passenger conveyor, and is not intended to limit the configuration of the passenger conveyor.

[0011] As shown in Figure 1, a person conveyor 1 may include, for example, a structure 2 installed on a main body, a transport section 3 for transporting people (passengers), a pair of balustrade sections 4 (only one is shown in Figure 1) arranged to sandwich the transport section 3 in a first direction D1, a drive section 5 for driving the transport section 3 and the balustrade sections 4, and a processing device 6 for controlling the entire device.

[0012] In each figure, the first direction D1 is the first horizontal direction (also called the "width direction") D1 which is a direction parallel to the horizontal direction, the second direction D2 is the second horizontal direction (also called the "front-to-back direction") D2 which is a direction parallel to the horizontal direction and perpendicular to the first horizontal direction D1, and the third direction D3 is a vertical direction perpendicular to the first horizontal direction D1 and the second horizontal direction D2, and is the up-down direction D3.

[0013] The passenger conveyor 1 according to this embodiment is an escalator with a stepped tread surface for transporting passengers, but is not limited to such a configuration. For example, the passenger conveyor 1 may be a moving walkway with a flat tread surface for transporting passengers.

[0014] 1 and 2, the conveying unit 3 includes a step 3a on which people stand, and a circular chain 3b that is connected to the step 3a and rotates to allow the step 3a to move. Specifically, the conveying unit 3 may include, for example, as in this embodiment, an endless circular chain 3b that rotates and moves when driven by a drive unit 5, and a plurality of steps 3a having treads on which people stand, which move together with the chain 3b by being connected to the chain 3b.

[0015] For example, as in this embodiment, the chains 3b may be provided in a pair spaced apart from each other in the first horizontal direction D1, and the steps 3a may be disposed between the pair of chains 3b, 3b. Also, the steps 3a may be connected to each of the chains 3b so as to be rotatable about the first horizontal direction D1 as an axis, as in this embodiment.

[0016] The passenger conveyor 1 is equipped with an oil supply unit 7 that supplies oil to the chain 3b. For example, as in this embodiment, the oil supply unit 7 may include a tank 7a that stores oil, a pump 7b that pumps the oil in the tank 7a, a piping unit 7c that supplies oil to the chain 3b, and a control valve 7d that can be switched by the processing device 6 between a state in which oil is supplied to the chain 3b and a state in which oil supply is stopped.

[0017] For example, as in this embodiment, pump 7b may be a constant-volume pump, and control valve 7d may be a switching valve that can be switched between a closed state and an open state with a constant opening degree. This makes the amount of fuel supplied by fuel supply unit 7 per unit time constant (including not only the same amount but also approximately the same amount with a difference of ±10%).

[0018] The oil supply unit 7 oils the chain 3b by dropping oil onto the chain 3b. Specifically, the oil supply unit 7 may oil the chain 3b by, for example, dripping oil in a thread shape, or may oil the chain 3b by, for example, dropping oil. Note that the oil supply unit 7 may be configured such that, for example, the pump 7b sends oil to the tank 7a, and the oil is supplied from the tank 7a to the chain 3b by its own weight.

[0019] 1, the driving unit 5 may include, for example, as in this embodiment, a rotating unit 5a around which a first end of the chain 3b in the second horizontal direction D2 is wound and which rotates about an axis in the first horizontal direction D1, a supporting unit 5b that supports a second end of the chain 3b in the second horizontal direction D2, and a driving source 5c that rotates the rotating unit 5a. As a result, the step 3a is reversed by the rotating unit 5a and also reversed by the supporting unit 5b.

[0020] Although not particularly limited, the rotating portion 5a may be, for example, a sprocket. Furthermore, although not particularly limited, the support portion 5b may be, for example, a guide member that guides the chain 3b to reverse its direction, or may be, for example, a rotating member (e.g., a sprocket) around which the chain 3b is wound and which rotates about an axis in the first horizontal direction D1. Furthermore, although not particularly limited, the driving source 5c may be, for example, a motor.

[0021] The balustrade section 4 may include, for example, an endless circular handrail belt 4a that rotates and runs, a balustrade main body section 4b that supports the handrail belt 4a, and a cover section 4c that covers the lower part of the balustrade main body section 4b. Note that, for example, the handrail belt 4a may run by being driven by the drive section 5, and the running of the handrail belt 4a may be synchronized with the running of the steps 3a and the chain 3b.

[0022] The structure 2 may include, for example, machine rooms 2a, 2a arranged at each end in the second horizontal direction D2 as in this embodiment. The structure 2 may be, for example, a truss structure or a girder structure composed of a plurality of frame materials.

[0023] The passenger conveyor 1 may, for example, include a floor plate 1a attached to the structure 2 so as to cover the machine room 2a from above, as in this embodiment. As a result, the floor plate 1a constitutes boarding and disembarking sections 1b arranged at each end of the transport section 3 in the second lateral direction D2 for getting on and off the transport section 3.

[0024] 3, the passenger conveyor 1 is equipped with a person detection unit 8 that detects people. For example, as in this embodiment, the person detection unit 8 may be equipped with a first person detection unit 8a that detects whether or not a person is present at the boarding and alighting section 1b, and a second person detection unit 8b that detects whether or not a person is present in an area of ​​the boarding and alighting section 1b that is closer to the boarding and alighting step 3a than the area detected by the first person detection unit 8a.

[0025] Although not particularly limited, the first person detection unit 8a may be, for example, as in this embodiment, a photoelectric sensor (for example, a reflective type) that projects in the second horizontal direction D2 and is disposed in the balustrade part 4. In addition, although not particularly limited, the second person detection unit 8b may be a photoelectric sensor (for example, a transmissive type) that projects in the first horizontal direction D1 and is disposed in the balustrade part 4.

[0026] The configuration of the human detection unit 8 is not particularly limited. The human detection unit 8 may be, for example, a photoelectric sensor as in this embodiment, or may be, for example, a camera that captures an image from above or the side, or may be, for example, a load cell that detects the load of a person from below, or may be, for example, an inverter that detects the load (for example, power value, current value) of the driving source 5c.

[0027] 4, the passenger conveyor 1 may include, for example, a speed detection unit 9 that detects the traveling speed of the steps 3a and the chain 3b, and a distance detection unit 10 that detects the traveling distance of the steps 3a and the chain 3b. Although not particularly limited, the speed detection unit 9 and the distance detection unit 10 may be, for example, sensors (e.g., a proximity sensor, an encoder) that detect the rotation of the rotating part 5a.

[0028] The passenger conveyor 1 may include, for example, an input unit 1c to which various information is input, and an output unit 1d to which various information is output, as in the present embodiment. Although not particularly limited, for example, the information input to the input unit 1c may be operation mode information (manual operation selection, automatic operation selection), operation instruction information (operation start instruction, operation stop instruction), step travel direction information (upper conveyance selection, lower conveyance selection), step travel speed information (rated speed operation selection, low speed operation selection), etc.

[0029] In addition, although not limited thereto, the input unit 1c may be, for example, a switch (such as a push button switch or a select switch), a touch panel, etc. In addition, although not limited thereto, the output unit 1d may be, for example, a display unit that displays information (such as an electronic bulletin board or a display light), a sound generating unit that emits information as sound (such as a buzzer or a speaker), a signal output unit that outputs a signal to the outside (such as a central monitoring panel, etc.), etc.

[0030] The processing device 6 may include, for example, an acquisition unit 11 that acquires each piece of information (data) from each unit 1c, 8, 9, 10, a storage unit 12 that stores each piece of information, a calculation unit 13 that calculates each piece of information, and a control unit 14 that controls each unit, as in this embodiment. The processing device 6 may be a computer that includes, for example, a processor such as a CPU and an MPU (for example, the calculation unit 13, the control unit 14), memories such as a ROM and a RAM (for example, the acquisition unit 11, the storage unit 12), various interfaces, etc.

[0031] As a result, the processor executes the program stored in the memory, and the software and hardware work together to realize the units 11, 12, 13, and 14 of the processing device 6. The processing device 6 may be configured, for example, with a software circuit, or may be configured, for example, with a hardware circuit, or may be configured, for example, with a combination of a software circuit and a hardware circuit.

[0032] The processing device 6 may be configured, for example, as one device, or may be configured, for example, as multiple devices that can communicate with each other. Specifically, the units 11, 12, 13, and 14 of the processing device 6 may be provided, for example, in one device, or may be provided, for example, distributed across multiple devices that can communicate with each other.

[0033] The calculation unit 13 may, for example, as in this embodiment, be equipped with a presence determination unit 13a that determines whether or not a person is riding on the passenger conveyor 1, and a fuel supply determination unit 13b that determines whether or not the fuel supply unit 7 should supply fuel to the chain 3b.

[0034] The control unit 14 may, for example, as in this embodiment, include a drive control unit 14a that controls the drive unit 5 to control the running of the step 3a and the chain 3b, an oil supply control unit 14b that controls the oil supply unit 7 to control the supply of oil to the chain 3b by the oil supply unit 7, and an output control unit 14c that controls the output unit 1d.

[0035] The configuration of the passenger conveyor 1 according to this embodiment is as described above, and next, a control method for the passenger conveyor 1 according to this embodiment will be described. Note that the following control method is provided as an example to help understand each control method of the passenger conveyor 1, and is not intended to limit each control method of the passenger conveyor 1.

[0036] First, the speed control of the step 3a and the chain 3b during automatic operation will be described.

[0037] The human presence determination unit 13a determines whether or not a human is present based on the detection by the human detection unit 8. Although not particularly limited, for example, when the first human detection unit 8a detects a human, the human presence determination unit 13a may determine that a human is present, and when, for example, a set time (for example, the time for the step 3a to travel a distance of 1 / 2 a revolution + 30 seconds) has elapsed since the second human detection unit 8b last detected a human, the human presence determination unit 13a may determine that no human is present.

[0038] When the presence determination unit 13a determines that a person is present, the drive control unit 14a sets the travel speed of the steps 3a and the chain 3b to a first speed state where the steps 3a and the chain 3b are at a first speed. On the other hand, when the presence determination unit 13a determines that no person is present, the drive control unit 14a sets the travel speed of the steps 3a and the chain 3b to a second speed state where the steps 3a and the chain 3b are at a second speed that is slower than the first speed.

[0039] The first speed is not limited to one speed. For example, the first speed may have a plurality of speeds and may be changed based on the number of people riding on the people conveyor 1. Although not particularly limited, the first speed may be, for example, 15 m / min or more, or, for example, 20 m / min or more, or, for example, 25 m / min or more.

[0040] Furthermore, the second speed is not limited to one speed. For example, the second speed may have a plurality of speeds and may be changed based on time or the like. Although not particularly limited, the second speed may be, for example, less than 15 m / min, or may be, for example, 10 m / min or less, or may be, for example, 5 m / min or less. Note that the second speed is a speed greater than zero (0 m / sec). That is, the second speed state does not include a state in which the step 3a and the chain 3b are stopped.

[0041] Next, the control of oil supply to the chain 3b by the oil supply unit 7 during automatic operation will be described with reference to Figs.

[0042] First, as shown in Fig. 5, the refueling determination unit 13b determines whether or not the refueling unit 7 should refuel based on the refueling conditions (S1). When the refueling determination unit 13b determines that it is time to refuel ("Y" in S1), the refueling control is executed. Although not particularly limited, the refueling conditions may include at least one of the cumulative travel distance of the step 3a and the chain 3b after the previous refueling, the cumulative travel time of the step 3a and the chain 3b after the previous refueling, and the elapsed time after the previous refueling.

[0043] Then, when it is time to oil ("Y" in S1) and the chain is in the second speed state ("Y" in S2), the oil supply control unit 14b causes the oil supply unit 7 to start oil supply (S3). As a result, when the chain 3b is in the second speed state in which the traveling speed is slow, the oil supply unit 7 drops oil onto the chain 3b. This makes it possible to prevent the impact on the oil from becoming too large, and therefore makes it possible to prevent, for example, the oil from scattering from the chain 3b.

[0044] Then, if the second speed state changes to the first speed state ("Y" in S5) before refueling by refueling unit 7 is completed ("N" in S4), refueling control unit 14b stops refueling by refueling unit 7 (S6), and thereafter, if the first speed state returns to the second speed state ("Y" in S7), refueling control unit 14b resumes refueling by refueling unit 7. This makes it possible to prevent the impact on the oil from becoming too large.

[0045] Thereafter, when the oil supply is completed ("Y" in S4), the oil supply control unit 14b ends the oil supply by the oil supply unit 7 (S15). This completes the oil supply to the chain 3b by the oil supply unit 7.

[0046] On the other hand, if the first speed state is maintained for a first set time ("N" in S2 and "Y" in S9) after the oil supply timing is reached ("Y" in S1), the oil supply control unit 14b starts oil supply by the oil supply unit 7 in the first speed state (S10). This makes it possible to prevent the timing of oil supply to the chain 3b from being too late.

[0047] Although not particularly limited, the first set time may be, for example, 30 minutes, or may be, for example, 60 minutes. Although not particularly limited, the first set time may be, for example, the time required for step 3a to complete 10 revolutions, or may be, for example, the time required for step 3a to complete 20 revolutions.

[0048] Furthermore, if the second speed state is changed to the first speed state ("Y" in S5) before the oil supply by the oil supply unit 7 is completed ("N" in S4), the oil supply control unit 14b stops the oil supply by the oil supply unit 7 (S6), but if the first speed state is maintained for a second set time thereafter ("N" in S7 and "Y" in S11), the oil supply control unit 14b resumes the oil supply by the oil supply unit 7 in the first speed state (S12). This makes it possible to prevent the timing of oil supply to the chain 3b from being too late.

[0049] Although not particularly limited, the second set time may be, for example, 30 minutes, or may be, for example, 60 minutes. Although not particularly limited, the second set time may be, for example, the time required for step 3a to complete 10 revolutions, or may be, for example, the time required for step 3a to complete 20 revolutions.

[0050] Also, the second set time may be, for example, shorter than the first set time. This makes it possible to reduce the difference in oil supply time between the regions of the chain 3b. Note that the second set time may be, for example, longer than the first set time, or may be, for example, the same as the first set time.

[0051] Then, when refueling is performed by the refueling unit 7 in the first speed state (S10 and S12), the drive control unit 14a maintains the first speed state until refueling by the refueling unit 7 is completed ("N" in S13 and S14). Thereafter, when refueling is completed ("Y" in S14), the refueling control unit 14b ends refueling by the refueling unit 7 (S15). This completes refueling of the chain 3b by the refueling unit 7.

[0052] Incidentally, the oil supply control unit 14b controls the oil supply unit 7 so that when it is time to supply oil, the number of times depends on the traveling speed at the time of supplying oil to each region of the chain 3b. Specifically, in order to suppress the occurrence of variation in the amount of oil supplied to the chain 3b, the oil supply unit 7 increases the number of times of oil supply to the region where the traveling speed at the time of supplying oil is faster.

[0053] Although not particularly limited, for example, when the first speed is 30 m / min and the second speed is 10 m / min, the area refueled in the first speed state is refueled only once, and the area refueled in the second speed state is refueled only three times, as shown in Figures 6 to 9. That is, the number of refueling times is inversely proportional to the traveling speed at the time of refueling.

[0054] Hereinafter, a description will be given of the time chart of the oil supply control in Fig. 6 to Fig. 9. In Fig. 6 to Fig. 9, the oil supply timing occurs when the oil supply position is the first position P1 of the chain 3b in the first revolution ("Y" in S1 in Fig. 5).

[0055] First, the time chart of the fuel supply control in FIG. 6 will be described.

[0056] As shown in Fig. 6, when the oil supply timing arrives ("Y" in S1 in Fig. 5), the oil supply unit 7 does not start oil supply because the first speed state is reached ("N" in S2 in Fig. 5). Then, in the first rotation, when the oil supply position is the second position P2 of the chain 3b, the second speed state is reached ("Y" in S2 in Fig. 5), so the oil supply unit 7 starts oil supply (S3 in Fig. 5).

[0057] Thereafter, since the second speed state is maintained, oiling is completed when the oiling position reaches the second position P2 of the chain 3b in the second rotation ("Y" in S4 of FIG. 5), and the oiling unit 7 ends oiling (S15 of FIG. 5). Therefore, in FIG. 6, the entire chain 3b is oiled only once in the second speed state.

[0058] Next, the time chart of the fuel supply control in FIG. 7 will be described.

[0059] As shown in Fig. 7, when the oil supply timing arrives ("Y" in S1 of Fig. 5), the oil supply unit 7 does not start oil supply because the first speed state is reached ("N" in S2 of Fig. 5). Then, in the first rotation, when the oil supply position is the second position P2 of the chain 3b, the second speed state is reached ("Y" in S2 of Fig. 5), so the oil supply unit 7 starts oil supply (S3 of Fig. 5).

[0060] Thereafter, in the first rotation, when the oil supply position is at the third position P3 of the chain 3b, the speed state changes from the second speed state to the first speed state ("Y" in S5 of FIG. 5), so the oil supply unit 7 stops oil supplying (S6 of FIG. 5). Thereafter, in the Nth rotation, when the oil supply position is at the fourth position P4 of the chain 3b, the speed state changes from the first speed state to the second speed state ("Y" in S7 of FIG. 5), so the oil supply unit 7 resumes oil supplying (S8 of FIG. 5).

[0061] After that, since the second speed state was maintained, the oil supply unit 7 oils the chain 3b from the fourth position P4 to the first position P1 in the Nth rotation, and oils the chain 3b from the first position P1 to the second position P2 and from the third position P3 to the fourth position P4 in the N+1th rotation. This completes the oil supply ("Y" in S4 of FIG. 5), and the oil supply unit 7 ends the oil supply (S15 of FIG. 5). Therefore, in FIG. 7, the entire chain 3b has been oiled only once in the second speed state.

[0062] Next, the time chart of the fuel supply control in FIG. 8 will be described.

[0063] As shown in Fig. 8, when the oil supply timing arrives ("Y" in S1 in Fig. 5), the oil supply unit 7 does not start oil supply because the oil supply position is the first speed state ("N" in S2 in Fig. 5). Then, in the Nth rotation, when the oil supply position is located at the fourth position P4 of the chain 3b, the first speed state has been maintained for the first set time ("N" in S2 and "Y" in S9 in Fig. 5), so the oil supply unit 7 starts oil supply in the first speed state (S10 in Fig. 5).

[0064] Thereafter, since the first speed state is maintained ("N" in S13 and S14 in FIG. 5), in the Nth lap, the oil supply unit 7 oils the chain 3b from the fourth position P4 to the first position P1, and in the N+1th and N+2th laps, the oil supply unit 7 oils the entire area of ​​the chain 3b, and in the N+3rd lap, the oil supply unit 7 oils the chain 3b from the first position P1 to the fourth position P4.

[0065] As a result, oil supply is completed ("Y" in S14 in FIG. 5), and the oil supply unit 7 ends oil supply (S15 in FIG. 5). Therefore, in FIG. 8, the entire chain 3b is oiled only three times in the first speed state. In FIG. 8, the first speed state is maintained until oil supply by the oil supply unit 7 is completed, so that oil supply can be completed quickly.

[0066] Next, the time chart of the fuel supply control in FIG. 9 will be described.

[0067] As shown in Fig. 9, when the oil supply timing arrives ("Y" in S1 of Fig. 5), the oil supply unit 7 does not start oil supply because the first speed state is reached ("N" in S2 of Fig. 5). Then, in the first rotation, when the oil supply position is the second position P2 of the chain 3b, the second speed state is reached ("Y" in S2 of Fig. 5), so the oil supply unit 7 starts oil supply (S3 of Fig. 5).

[0068] Thereafter, in the first rotation, when the oil supply position is at the third position P3 of the chain 3b, the speed state changes from the second speed state to the first speed state ("Y" in S5 of FIG. 5), so the oil supply unit 7 stops oil supply (S6). Thereafter, in the Nth rotation, when the oil supply position is at the fourth position P4 of the chain 3b, the first speed state is maintained for the second set time ("N" in S7 and "Y" in S11 of FIG. 5), so the oil supply unit 7 resumes oil supply in the first speed state (S12 of FIG. 5).

[0069] Thereafter, since the first speed state is maintained ("N" in S13 and S14 in FIG. 5), in the Nth round, the oil supply unit 7 performs oil supply from the fourth position P4 to the first position P1 of the chain 3b, and in the N+1th and N+2th rounds, the oil supply unit 7 performs oil supply from the first position P1 to the second position P2 and from the third position P3 to the first position P1 of the chain 3b, and in the N+3th round, the oil supply unit 7 performs oil supply from the first position P1 to the second position P2 and from the third position P3 to the fourth position P4 of the chain 3b.

[0070] This completes the oil supply ("Y" in S14 in FIG. 5), and the oil supply unit 7 ends the oil supply (S15 in FIG. 5). Therefore, in FIG. 9, oil is supplied only once in the second speed state from the second position P2 to the third position P3 of the chain 3b, and oil is supplied only three times in the first speed state from the first position P1 to the second position P2 and from the third position P3 to the first position P1 of the chain 3b. Note that in FIG. 9, the first speed state is maintained until oil supply by the oil supply unit 7 is completed, so that oil supply can be completed quickly.

[0071] In this way, when it is time to oil, the oil supply unit 7 oils each region of the chain 3b a number of times according to the traveling speed at the time of oil supply. This makes it possible to suppress variations in the amount of oil supplied to the chain 3b, even if the amount of oil supplied to the chain 3b per unit time is constant regardless of the traveling speed of the chain 3b.

[0072] Incidentally, although not particularly limited, the memory unit 12 may store, for example, the travelling speed at the time of refuelling and the number of refuelling times for each region of the chain 3b. Furthermore, although not particularly limited, the refuelling position of the chain 3b may be calculated by the calculation unit 13 based on, for example, detection by the distance detection unit 10. Furthermore, although not particularly limited, the travelling speed of the chain 3b may be calculated by the calculation unit 13 based on, for example, detection by the speed detection unit 9, or may be determined by the calculation unit 13 based on, for example, an instruction to the inverter of the driving source 5c.

[0073] [1] From the above, the passenger conveyor 1, as in this embodiment, Step 3a, where people sit, A circular chain 3b is connected to the step 3a and rotates to allow the step 3a to run; an oil supply unit 7 for oiling the chain 3b; A human detection unit 8 for detecting a human; A processing device (6) for controlling the refueling unit (7), The processing device 6 determines the presence or absence of a person based on the detection of the human detection unit 8, and when it determines that a person is present, sets the traveling speed of the chain 3b to a first speed state at a first speed, and when it determines that no person is present, sets the traveling speed of the chain 3b to a second speed state at a second speed slower than the first speed, The amount of oil that the oil supply unit 7 supplies per unit time is constant, When the time for oiling arrives, the processing device 6 controls the oiling unit 7 so that oil is added to each region of the chain 3b a number of times according to the running speed at the time of oiling. This configuration is preferred.

[0074] According to this configuration, when it is time to oil, the oil supply unit 7 oils each region of the chain 3b a number of times according to the traveling speed at the time of oil supply. This makes it possible to suppress variations in the amount of oil supplied to the chain 3b even if the amount of oil supplied to the chain 3b per unit time is constant.

[0075] [2] In addition, in the passenger conveyor 1 described above in [1], as in this embodiment, The oil supply unit 7 oils the chain 3b by dropping oil onto the chain 3b, When the refueling timing arrives ("Y" in S1), and when the vehicle is in the second speed state ("Y" in S2), the processing device 6 starts refueling by the refueling unit 7 (S3). This configuration is preferred.

[0076] According to this configuration, the oil supply unit 7 supplies oil to the chain 3b when the chain 3b is in the second speed state, so that the oil supply unit 7 drops oil onto the chain 3b when the traveling speed of the chain 3b is slow. This makes it possible to prevent the impact on the oil from becoming too large.

[0077] [3] In addition, in the passenger conveyor 1 described in [2] above, as in this embodiment, When the first speed state is maintained for a first set time after the refueling timing is reached ("Y" in S1, "N" in S2, and "Y" in S9), the processing device 6 starts refueling by the refueling unit 7 in the first speed state (S10). This configuration is preferred.

[0078] According to this configuration, when the first speed state is maintained for the first set time after the oil supply timing is reached, the oil supply unit 7 starts oil supply in the first speed state. This makes it possible to prevent the timing of oil supply to the chain 3b from being too late.

[0079] [4] In addition, in the passenger conveyor 1 of [2] or [3] above, as in this embodiment, When the second speed state is changed to the first speed state before the fuel supply by the fuel supply unit 7 is completed ("N" in S4 and "Y" in S5), the processing device 6 stops the fuel supply by the fuel supply unit 7 (S6), The processing device 6 resumes refueling by the refueling unit 7 when the speed state returns from the first speed state to the second speed state ("Y" in S7) (S8), and resumes refueling by the refueling unit 7 in the first speed state when the first speed state is maintained for a second set time ("N" in S7 and "Y" in S11) (S12). This configuration is preferred.

[0080] According to this configuration, if the speed state changes from the second speed state to the first speed state before refueling is completed, the refueling unit 7 stops refueling, and if the speed state returns from the first speed state to the second speed state thereafter, the refueling unit 7 resumes refueling. This makes it possible to prevent the impact on the oil from becoming too large.

[0081] On the other hand, if the second speed state is changed to the first speed state before the oil supply is completed, the oil supply unit 7 stops the oil supply, and if the first speed state is maintained for a second set time thereafter, the oil supply unit 7 resumes the oil supply in the first speed state. This makes it possible to prevent the timing of oil supply to the chain 3b from being too late.

[0082] [5] In addition, in any one of the passenger conveyors 1 described above in [1] to [4], as in this embodiment, When the processing device 6 is causing the refueling unit 7 to perform refueling in the first speed state (S10 and S12), the processing device 6 maintains the first speed state until refueling by the refueling unit 7 is completed ("N" in S13 and S14), This configuration is preferred.

[0083] According to this configuration, when the fuel supply unit 7 is supplying fuel in the first speed state, the first speed state is maintained until the fuel supply is completed. This allows the fuel supply to be completed quickly.

[0084] The passenger conveyor 1 is not limited to the configuration of the embodiment described above, nor is it limited to the above-mentioned effects. Furthermore, the passenger conveyor 1 can be modified in various ways without departing from the spirit of the present invention. For example, it is possible to select one or more of the configurations and methods of the various modified examples described below and adopt them in the configurations and methods of the embodiment described above.

[0085] (A) In the passenger conveyor 1 according to the above embodiment, the number of times the area that is refueled in the second speed state is refueled is one. However, the passenger conveyor 1 is not limited to such a configuration. For example, the number of times the area that is refueled in the second speed state may be multiple.

[0086] (B) In addition, in the passenger conveyor 1 according to the above embodiment, the first speed (30 m / min) is an integer multiple of the second speed (10 m / min). However, the passenger conveyor 1 is not limited to such a configuration. For example, the first speed may not be an integer multiple of the second speed.

[0087] Although not particularly limited, for example, the first speed may be 25 m / min, the second speed may be 10 m / min, the number of times of refueling in the area refueled in the second speed state is 2, and the number of times of refueling in the area refueled in the first speed state is 5. With such a configuration, the number of times of refueling is completely inversely proportional to the traveling speed at the time of refueling.

[0088] Also, although not particularly limited, for example, the first speed may be 25 m / min, the second speed may be 10 m / min, the number of times of oiling in the region oiled in the second speed state may be one, and the number of times of oiling in the region oiled in the first speed state may be two or three. That is, the number of times of oiling does not have to be completely inversely proportional to the traveling speed at the time of oiling. In short, in order to suppress the occurrence of variations in the amount of oiling for the chain 3b, it is sufficient that the number of times of oiling is greater in the region where the traveling speed at the time of oiling is faster.

[0089] (C) Furthermore, in the passenger conveyor 1 according to the above embodiment, the processing device 6 is configured to cause the oil supply unit 7 to start oil supply (S3) when it is time to supply oil ("Y" in S1) and when the passenger conveyor 1 is in the second speed state ("Y" in S2). However, the passenger conveyor 1 is not limited to such a configuration. For example, the processing device 6 may be configured to cause the oil supply unit 7 to start oil supply when it is time to supply oil, regardless of the running speed of the chain 3b (for example, even when the passenger conveyor 1 is in the first speed state).

[0090] (D) In ​​addition, in the passenger conveyor 1 according to the embodiment described above, the oil supply unit 7 is configured to oil the chain 3b by dropping oil onto the chain 3b. However, the passenger conveyor 1 is not limited to such a configuration.

[0091] For example, the oil supply unit 7 may be configured to supply oil to the impregnated material, and the chain 3b may come into contact with the impregnated material, thereby causing the oil supply unit 7 to supply oil to the chain 3b. Also, for example, the oil supply unit 7 may be configured to supply oil to a storage unit that stores oil, and the chain 3b may pass through the oil in the storage unit, thereby causing the oil supply unit 7 to supply oil to the chain 3b.

[0092] (E) Furthermore, in the passenger conveyor 1 according to the above embodiment, the processing device 6 is configured to cause the fuel supply unit 7 to start fuel supplying in the first speed state (S10) when the first speed state has been maintained for a first set time after the timing for fuel supply has occurred ("Y" in S1, "N" in S2, and "Y" in S9). However, the passenger conveyor 1 is not limited to such a configuration. For example, the processing device 6 may be configured to stop fuel supplying by the fuel supply unit 7 until the second speed state is reached, regardless of the time the first speed state has been maintained after the timing for fuel supply has occurred.

[0093] (F) In addition, in the passenger conveyor 1 according to the above embodiment, the processing device 6 is configured to start refueling in the second speed state ("Y" in S2 and S3), and to stop refueling by the refueling unit 7 (S6) if the second speed state is changed to the first speed state before refueling by the refueling unit 7 is completed ("N" in S4 and "Y" in S5). However, the passenger conveyor 1 is not limited to such a configuration. For example, the processing device 6 may be configured to start refueling in the second speed state, and to continue refueling by the refueling unit 7 even if the second speed state is changed to the first speed state before refueling by the refueling unit 7 is completed.

[0094] (G) Furthermore, in the passenger conveyor 1 according to the above embodiment, the processing device 6 starts refueling in the second speed state ("Y" in S2 and S3), and if the second speed state changes to the first speed state before refueling by the refueling unit 7 is completed ("N" in S4 and "Y" in S5), stops refueling by the refueling unit 7 (S6), and then resumes refueling by the refueling unit 7 in the first speed state (S12) if the first speed state is maintained for a second set time ("N" in S7 and "Y" in S11). However, the passenger conveyor 1 is not limited to such a configuration.

[0095] For example, the processing device 6 may be configured to start refueling in the second speed state, and if the second speed state is changed to the first speed state before refueling by the refueling unit 7 is completed, to stop refueling by the refueling unit 7, and then to stop refueling by the refueling unit 7 until the second speed state is reached regardless of the time the first speed state is maintained.

[0096] (H) In addition, in the passenger conveyor 1 according to the above embodiment, the processing device 6 is configured to maintain the first speed state ("N" in S13 and S14) until refueling by the refueling unit 7 is completed when refueling is being performed by the refueling unit 7 in the first speed state (S10 and S12). However, the passenger conveyor 1 is not limited to such a configuration. For example, the processing device 6 may be configured to be able to switch from the first speed state to the second speed state based on detection by the human detection unit 8 before refueling by the refueling unit 7 is completed when refueling is being performed by the refueling unit 7 in the first speed state.

[0097] (I) In addition, in the passenger conveyor 1 according to the above embodiment, the speed control of the chain 3b is configured to be switched between a first speed state and a second speed state. However, the passenger conveyor 1 is not limited to such a configuration. For example, the speed control of the chain 3b may be configured to be switched between a first speed state, a second speed state, and a stopped state. Note that the speed of the chain 3b in the stopped state is zero (0 m / sec).

[0098] (J) For example, the order of execution of each process, such as operations, procedures, steps, and stages, in the methods and apparatuses shown in the claims, specifications, and drawings, may be arbitrary, so long as the result of a previous process is not used in a subsequent process. For example, even if the description uses "first," "next," etc. for convenience, it does not mean that the processes must be executed in this order. [Explanation of symbols]

[0099] 1...man conveyor, 1a...floor plate, 1b...boarding and disembarking section, 1c...input section, 1d...output section, 2...structure, 2a...machine room, 3...transport section, 3a...step, 3b...chain, 4...parapet section, 4a...handrail belt, 4b...parapet main body section, 4c...cover section, 5...driving section, 5a...rotating section, 5b...support section, 5c...driving source, 6...processing device, 7...fuel supply section, 7a...tank, 7b...pump, 7c...piping section, 7d...control valve, 8...person detection section, 8a...first person detection section, 8b...second person detection section, 9...speed detection section, 10...distance detection section, 11...acquisition section, 12...storage section, 13...calculation section, 13a...person presence determination section, 13b...fuel supply determination section, 14...control section, 14a...drive control section, 14b...fuel supply control section, 14c...output control section, D1...first horizontal direction, D2...second horizontal direction, D3...vertical direction

Claims

1. Steps for people to climb, a circular chain connected to the step and rotating to cause the step to travel; an oil supply unit that supplies oil to the chain; A person detection unit that detects a person; A processing device for controlling the refueling unit, the processing device determines the presence or absence of a person based on the detection by the human detection unit, and when it is determined that a person is present, sets a first speed state in which the running speed of the chain is a first speed, and when it is determined that no person is present, sets a second speed state in which the running speed of the chain is a second speed slower than the first speed, The amount of fuel that the fuel supply unit supplies per unit time is constant, The processing device controls the oil supply unit so that when the time for oiling arrives, oiling begins regardless of the running speed of the chain, and oils each area of ​​the chain a number of times according to the running speed at the time of oiling.

2. A step on which a person stands; a circular chain connected to the step and rotating to cause the step to travel; an oil supply unit that supplies oil to the chain; A person detection unit that detects a person; A processing device for controlling the refueling unit, the processing device determines the presence or absence of a person based on the detection by the human detection unit, and when it is determined that a person is present, sets a first speed state in which the running speed of the chain is a first speed, and when it is determined that no person is present, sets a second speed state in which the running speed of the chain is a second speed slower than the first speed, The amount of fuel that the fuel supply unit supplies per unit time is constant, The processing device controls the oil supply unit when it is time to oil each area of ​​the chain, so that the number of times the oil is supplied corresponds to the running speed at the time of oil supply. The oil supply unit oils the chain by dropping oil onto the chain, The processing device, when the refueling timing occurs, starts refueling by the refueling section when the conveyor is in the second speed state.

3. 3. A passenger conveyor as described in claim 2, wherein the processing device starts refueling by the refueling unit in the first speed state when the first speed state is maintained for a first set time after the refueling timing is reached.

4. the processing device stops refueling by the refueling unit when the speed state changes from the second speed state to the first speed state before refueling by the refueling unit is completed; 3. A man conveyor as described in claim 2, wherein the processing device resumes refueling by the refueling unit when the speed state returns from the first speed state to the second speed state, and resumes refueling by the refueling unit in the first speed state when the first speed state is maintained for a second set time.

5. A man conveyor as described in any one of claims 1 to 4, wherein when the processing device is causing the refueling unit to perform refueling in the first speed state, it maintains the first speed state until refueling by the refueling unit is completed.

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