Man-conveyor

Abstract

To provide a man-conveyor capable of preventing variations in an amount of oil supplied to a chain.SOLUTION: A man-conveyor comprises: a step on which a person rides; a circular chain connected to the step and rotating for allowing the step to run; an oil supply unit for supplying oil to the chain; a person detection unit for detecting the person; and a processing device for controlling the oil supply unit. The processing device determines the presence or absence of the person on the basis of the detection performed by the person detection unit, sets a first speed state in which the running speed of the chain is first speed when it is determined that the person is present, and sets a second speed state in which the running speed of the chain is second speed that is slower than the first speed when it is determined that the person is absent, an amount of oil supplied by the oil supply unit per unit time is constant, and the processing device controls the oil supply unit so that the oil is supplied by a certain number of times according to the running speed at the time of oil supply for each region of the chain when oil supply timing has come.SELECTED DRAWING: Figure 9

Description

[Technical Field]

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

[0002] Conventionally, for example, a people conveyor has been equipped with steps on which people stand, a circular chain connected to the steps that 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 people conveyor of Patent Document 1, the amount of oil supplied per unit time by the oil supply unit is constant regardless of the running speed of the steps.

[0003] As a result, when the chain travels at a high speed, the amount of oil supplied per unit length of the chain becomes relatively small, and when the chain travels at a low speed, the amount of oil supplied per unit length of the chain becomes relatively large, resulting in variations 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, the object is to provide a people conveyor that can suppress variations in the amount of oil supplied to the chain. [Means for solving the problem]

[0006] Man conveyors are Steps for people to climb, a circular chain connected to the step and rotating to allow 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 that controls the fuel supply unit, the processing device determines the presence or absence of a person based on the detection by the person detection unit, and when it determines that a person is present, sets the chain to a first speed state in which the running speed of the chain is a first speed, and when it determines that no person is present, 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 fuel supplied by the fuel supply unit 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 explanation of the drawings]

[0007] [Figure 1] Schematic diagram of a people conveyor according to one embodiment. [Figure 2] FIG. 1 is a diagram showing the main parts of a passenger conveyor according to the embodiment; [Figure 3] FIG. 1 is a diagram showing the main parts of a passenger conveyor according to the embodiment; [Figure 4] Control block diagram of the passenger conveyor according to the embodiment. [Figure 5] Refueling control flow diagram of the passenger conveyor according to the embodiment [Figure 6] FIG. 2 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. 10 is a time chart showing another example of a refueling position, a speed state, and a refueling state according to the embodiment; [Figure 8] FIG. 10 is a time chart showing still another example of the refueling position, speed state, and refueling state according to the embodiment; [Figure 9] FIG. 10 is a time chart showing still another example of the refueling position, speed state, and refueling state according to the embodiment; DETAILED DESCRIPTION OF THE INVENTION

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

[0009] Terms including ordinal numbers such as "first" and "second" are used to describe various components, but these terms are used only to distinguish 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. Furthermore, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

[0010] An embodiment of a passenger conveyor will be described below 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, the passenger 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 the vertical direction perpendicular to the first horizontal direction D1 and the second horizontal direction D2, which is the up-down direction D3.

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

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

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

[0016] The people 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 from 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 metering 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 constant (including not only the case where it is constant, but also the case where it is approximately the same with a difference of ±10%).

[0018] Oil supply unit 7 supplies oil to chain 3b by dropping oil onto chain 3b. Specifically, oil supply unit 7 may supply oil to chain 3b by, for example, dripping oil in a string, or may supply oil to chain 3b by, for example, dropping oil. Note that oil supply unit 7 may be configured such that pump 7b sends oil to tank 7a, and the oil is supplied from tank 7a to chain 3b by gravity.

[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 support 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 by the support 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 so that it rotates in the reverse 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 drive 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 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. Note that the structure 2 may also have, for example, a truss structure or a girder structure made up of multiple frame members.

[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 passengers to get on and off the transport section 3.

[0024] 3, the people 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 in 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 step 3a for getting on and off than the area detected by the first person detection unit 8a.

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

[0026] There is no particular limitation on the configuration of the human detection unit 8. 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 images 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 drive source 5c.

[0027] 4, the people 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 sensors (e.g., proximity sensors, encoders) that detect the rotation of the rotating part 5a.

[0028] The passenger conveyor 1 may, for example, as in this embodiment, be equipped with an input unit 1c to which various information is input, and an output unit 1d to which various information is output. 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 side conveyance selection, lower side conveyance selection), step travel speed information (rated speed operation selection, low speed operation selection), etc.

[0029] Furthermore, although not particularly limited, the input unit 1c may be, for example, a switch (push button switch, select switch, etc.), a touch panel, etc. Furthermore, although not particularly limited, the output unit 1d may be, for example, a display unit that displays information (for example, an electronic bulletin board, an indicator light), a sound generating unit that emits information as sound (for example, a buzzer, a speaker), a signal output unit that outputs a signal to the outside (for example, 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 also 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 as a single device, or may be configured as a plurality of devices that can communicate with each other. Specifically, the units 11, 12, 13, and 14 of the processing device 6 may be provided in a single device, or may be distributed across a plurality of devices that can communicate with each other.

[0033] The calculation unit 13 may, for example, as in this embodiment, be equipped with an on-board presence determination unit 13a that determines whether or not there is a person on the passenger conveyor 1, and an refueling determination unit 13b that determines whether or not the refueling unit 7 should refuel 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 oil supply 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 we will explain the control method for the passenger conveyor 1 according to this embodiment. Note that the control method below is provided as an example to help understand the various control methods for the passenger conveyor 1, and is not intended to limit the various control methods for 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 person presence determination unit 13a determines whether or not a person is present based on the detection by the person detection unit 8. Although not particularly limited, for example, when the first person detection unit 8a detects a person, the person presence determination unit 13a may determine that a person is present, and when, for example, a set time (for example, the time it takes for step 3a to travel a distance of 1 / 2 a circumference + 30 seconds) has elapsed since the second person detection unit 8b last detected a person, the person presence determination unit 13a may determine that no person is present.

[0038] When the presence determination unit 13a determines that an operator 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 operator 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 travel speed is 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 multiple speeds and may be changed based on factors such as 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 may be, for example, 20 m / min or more, or may be, for example, 25 m / min or more.

[0040] Furthermore, the second speed is not limited to one speed. For example, the second speed may include multiple speeds and may be changed based on time, etc. 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). In other words, the second speed state does not include a state in which the step 3a and the chain 3b are stopped.

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

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

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

[0044] Then, if the speed state changes from the second speed state 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 speed state returns from the first speed state 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 has arrived ("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. Furthermore, 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 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 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. Furthermore, 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] The second set time may be shorter than the first set time, for example. This reduces the difference in oil supply time between the different regions of the chain 3b. The second set time may be longer than the first set time, for example, or may be the same as the first set time.

[0051] Then, when refueling by the refueling unit 7 is performed 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). After that, 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, when it is time to refuel, the refueling control unit 14b controls the refueling unit 7 so that, for each region of the chain 3b, the number of refueling operations corresponds to the traveling speed at the time of refueling. Specifically, in order to prevent variations in the amount of refueling for the chain 3b, the refueling unit 7 increases the number of refueling operations for regions where the traveling speed at the time of refueling 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. In other words, the number of refueling times is inversely proportional to the traveling speed at the time of refueling.

[0054] The following describes the time charts of oil supply control shown in Figures 6 to 9. In Figures 6 to 9, it is assumed that the oil supply timing occurs when the oil supply position is the first position P1 of the chain 3b for the first turn ("Y" in S1 of Figure 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, on 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, oil supply is completed when the oil supply position reaches second position P2 of chain 3b in the second rotation ("Y" in S4 of FIG. 5), and oil supply unit 7 ends oil supply (S15 of FIG. 5). Therefore, in FIG. 6, the entire chain 3b has been 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 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, on the first rotation, when the oil supply position is at 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).

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

[0061] After that, because the second speed state was maintained, in the Nth rotation, the oil supply unit 7 oils the chain 3b from the fourth position P4 to the first position P1, and in the (N+1)th rotation, the oil supply unit 7 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. This completes the oil supply ("Y" in S4 of FIG. 5), and the oil supply unit 7 finishes oiling (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 it is in the first speed state ("N" in S2 in Fig. 5). Then, on 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, the first speed state is maintained ("N" in S13 and S14 in Figure 5), so that 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 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. Note that in FIG. 8, the first speed state is maintained until oil supply by oil supply unit 7 is completed, so 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 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, during 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).

[0068] Thereafter, during the first rotation, when the oil supply position is at third position P3 of chain 3b, the speed state changes from the second speed state to the first speed state ("Y" in S5 of FIG. 5), so oil supply unit 7 stops oil supply (S6). Thereafter, during the Nth rotation, when the oil supply position is at fourth position P4 of chain 3b, the first speed state is maintained for the second set time ("N" in S7 and "Y" in S11 of FIG. 5), so 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 Figure 5), in the Nth lap, 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 laps, the oil supply unit 7 performs oil supply from the first position P1 to the second position P2 of the chain 3b and from the third position P3 to the first position P1, and in the N+3rd lap, the oil supply unit 7 performs oil supply from the first position P1 to the second position P2 of the chain 3b and from the third position P3 to the fourth position P4.

[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 oil supply can be completed quickly.

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

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

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

[0074] With this configuration, when it is time to refuel, the refueling unit 7 refuels each region of the chain 3b a number of times according to the running speed at the time of refueling. This makes it possible to suppress variations in the amount of refueling of the chain 3b, even if the amount of refueling of 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 supplies oil to 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] With this configuration, the oil supply unit 7 supplies oil to the chain 3b when it is in the second speed state, so when the traveling speed of the chain 3b is slow, the oil supply unit 7 drops oil onto the chain 3b, thereby preventing the impact on the oil from becoming too large.

[0077] [3] In addition, in the passenger conveyor 1 described above in [2], 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] With this configuration, if the first speed state is maintained for a first set time after the oil supply timing has arrived, 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 the above [2] or [3], 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 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] With this configuration, if the speed state changes from the second speed state to the first speed state before refueling is completed, refueling unit 7 stops refueling, and then, if the speed state returns from the first speed state to the second speed state, 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 oil supply is completed, oil supply unit 7 stops oil supply, and thereafter, if the first speed state is maintained for a second set time, oil supply unit 7 resumes oil supply in the first speed state. This makes it possible to prevent the timing of oil supply to 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 dispensing unit 7 is dispensing fuel in the first speed state, the first speed state is maintained until the dispensing is completed, thereby enabling the dispensing to be completed quickly.

[0084] The passenger conveyor 1 is not limited to the configuration of the above-described embodiment, nor is it limited to the above-described effects. Furthermore, various modifications can be made to the passenger conveyor 1 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 above-described embodiment.

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

[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 this 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 the area refueled in the second speed state is 2, and the number of times the area refueled in the first speed state is 5. With this configuration, the number of times refueling is completely inversely proportional to the traveling speed at the time of refueling.

[0088] Furthermore, although not particularly limited, for example, the first speed may be 25 m / min, the second speed may be 10 m / min, and 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. In other words, 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 variations in the amount of oiling for the chain 3b, it is sufficient that the number of times of oiling is greater in regions 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 the time for oil supply arrives ("Y" in S1) and when the passenger conveyor is in the second speed state ("Y" in S2). However, the passenger conveyor 1 is not limited to this configuration. For example, the processing device 6 may be configured to cause the oil supply unit 7 to start oil supply when the time for oil supply arrives, regardless of the running speed of the chain 3b (for example, even when the chain is in the first speed state).

[0090] (D) Furthermore, in the passenger conveyor 1 according to the above embodiment, 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 this 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 oiling the chain 3b. Alternatively, the oil supply unit 7 may be configured to supply oil to a reservoir that stores oil, and the chain 3b may pass through the oil in the reservoir, thereby oiling 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 supplying fuel at the first speed (S10) when the first speed state has been maintained for a first set time after the timing for refueling has arrived ("Y" in S1, "N" in S2, and "Y" in S9). However, the passenger conveyor 1 is not limited to this configuration. For example, the processing device 6 may be configured to stop supplying fuel 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 refueling has arrived.

[0093] (F) 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). 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 continue refueling by the refueling unit 7 even if the second speed state changes 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 this 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 changes to the first speed state before refueling by the refueling unit 7 is completed, stop refueling by the refueling unit 7, and then 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) Furthermore, in the passenger conveyor 1 according to the above embodiment, when the processing device 6 is causing the refueling unit 7 to supply fuel in the first speed state (S10 and S12), it maintains the first speed state until refueling by the refueling unit 7 is completed ("N" in S13 and S14). However, the passenger conveyor 1 is not limited to this 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 person detection unit 8 before refueling by the refueling unit 7 is completed when refueling by the refueling unit 7 is performed in the first speed state.

[0097] (I) Furthermore, 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 this 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 / s).

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

[0099] 1...Man conveyor, 1a...Floor plate, 1b...Boarding and alighting section, 1c...Input section, 1d...Output section, 2...Structure, 2a...Machine room, 3...Conveying section, 3a...Step, 3b...Chain, 4...Balustrade section, 4a...Handrail belt, 4b...Balustrade main body section, 4c...Cover section, 5...Drive section, 5a...Rotating section, 5b...Support section, 5c...Drive 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 allow 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 that controls the fuel supply unit, the processing device determines the presence or absence of a person based on the detection by the person detection unit, and when it determines that a person is present, sets the chain to a first speed state in which the running speed of the chain is a first speed, and when it determines that no person is present, 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 fuel supplied by the fuel supply unit per unit time is constant, The processing device controls the oil supply unit so that when it is time to oil each area of ​​the chain, the number of times depends on the running speed at the time of oil supply.

2. the oil supply unit oils the chain by dropping oil onto the chain, 2. The passenger conveyor according to claim 1, wherein the processing device causes the oil supply unit to start oil supply when the oil supply timing is reached and the passenger conveyor is in the second speed state.

3. 3. The passenger conveyor according to 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 has arrived.

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. The man conveyor of claim 2, wherein the processing device resumes refueling by the refueling unit when the speed 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 passenger 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, the processing device maintains the first speed state until refueling by the refueling unit is completed.

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