JP2008297077A - Oil pan cleaner for passenger conveyers - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil pan cleaner for passenger conveyor capable of smoothly cleaning without being influenced by shape of a projection in the top surface of an oil pan and capable of shortening the cleaning time and reducing the labor for the cleaning work. <P>SOLUTION: This oil pan cleaner for passenger conveyor cleans an oil pan provided under a plurality of footsteps by moving with the plurality of footsteps endlessly coupled to each other and circulated between a right and a left platforms. At least one of the plurality of footsteps is formed into a cleaning footstep 15, and this cleaning footstep 15 is provided with an electromagnet means 18 for attracting magnetic fluid 17 spread in the top surface of the oil pan 5, and the magnetic fluid 17 is attracted to the electromagnet means 18 when the cleaning footstep 15 is moved in the return direction, and the magnetic fluid 17 slides on the top surface of the oil pan 5 so as to rake dust W in the top surface of the oil pan 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an oil pan cleaning machine for passenger conveyors.

  In general, in passenger conveyors, dust such as earth and sand and cigarette butts that fall from the side of a plurality of steps connected endlessly and circulate between the left and right entrances. Also, an oil pan that receives oil or the like lubricated to each rail or chain is installed, and the top of the oil pan must be periodically cleaned.

Therefore, an oil pan cleaning machine for passenger conveyor that cleans the oil pan, a mounting frame attached to the front wheel shaft provided on the moving chain, a cleaning member made of a cleaning brush, a cleaning rubber, etc. that are in sliding contact with the upper surface of the oil pan, The supporting member that supports the cleaning member and a connecting member that connects the supporting member to the mounting frame, and the oil pan cleaner for the passenger conveyor are connected endlessly and circulated between the left and right entrances. After removing one of the plurality of steps to be mounted on the removed portion, the dust is collected on the upper surface of the oil pan by the cleaning member by moving together with the other remaining steps. What has been developed has been developed (for example, see Patent Document 1).
JP 2002-220183 A

  However, in the above-described conventional oil pan cleaning machine for passenger conveyor, the operation of the passenger conveyor is stopped, and after removing at least one step in the upper machine room of the passenger conveyor, the oil pan cleaning machine for passenger conveyor After that, the passenger conveyor is operated, and the oil pan cleaning machine for the passenger conveyor is moved to the lower machine room side of the passenger conveyor, so that the dust of the oil pan is collected by the cleaning member on the lower machine room side of the passenger conveyor. After that, the scraped dust is sucked and discarded by a vacuum cleaner or the like, which causes the following problems.

(1) In order to install an oil pan cleaning machine for passenger conveyor, it is necessary to stop the operation of the passenger conveyor and remove at least one step, and when the oil pan cleaning operation is performed again, After removing the passenger conveyor oil pan cleaning machine moved to the lower machine room side of the passenger conveyor on the lower machine room side, the cleaning operator brings the passenger conveyor oil pan cleaning machine into the upper machine room of the passenger conveyor, Again, it is necessary to attach to the front wheel axle, and the labor of the cleaning worker is increased, and the cleaning work time is prolonged.

(2) Since it is necessary to stop the operation of the passenger conveyor and attach an oil pan cleaner for the passenger conveyor, the oil pan cleaning operation cannot be performed during the normal operation of the passenger conveyor.

(3) Dust on the upper surface of the oil pan is scraped from the upper machine room of the passenger conveyor toward the lower machine room by a cleaning member made of a cleaning brush, cleaning rubber, or the like that slides on the upper surface of the oil pan. Therefore, when there is a protrusion for reinforcing the oil pan on the upper surface of the oil pan, the cleaning member collides with the protrusion, so that the cleaning member is damaged or the oil pan cleaning machine for passenger conveyors. Since the oil pan cleaning machine for passenger conveyor collides with the surrounding steps etc., the steps etc. are damaged, so it is necessary to use a cleaning member with a special shape that matches the protrusion on the oil pan top surface. . However, since the shape of the protrusion on the upper surface of the oil pan is often different depending on the passenger conveyor installation site depending on the situation of the installation work of the passenger conveyor, it is necessary to prepare a large number of cleaning members having different shapes in advance. There is.

  The present invention has been considered in view of the above-mentioned problems, and the purpose thereof can be performed even during normal operation of the passenger conveyor without being affected by the shape of the protrusions on the upper surface of the oil pan. Another object is to provide an oil pan cleaner for passenger conveyor that can shorten the cleaning time and reduce the labor of the cleaning work.

  In order to achieve the above object, according to the present invention, at least one of a plurality of steps connected endlessly and circulated between left and right entrances and exits is defined as a cleaning step, and the plurality of steps are used as a cleaning step. An oil pan cleaning machine for passenger conveyors that cleans the upper surface of an oil pan provided opposite to the individual steps, the cleaning step comprising a step frame, a step plate, a riser, a front wheel, and a rear wheel, The tread plate is provided so as to be openable and closable with respect to the step frame by a support shaft, the electromagnet means for adsorbing the magnetic fluid spread on the upper surface of the oil pan to the cleaning step, and the forward direction of the cleaning step A reversing operation detecting means for detecting a reversing operation from the return side direction to the returning side direction and a reversing operation of the cleaning step from the return side direction to the forward side direction, and a tread board opening / closing means for opening and closing the tread board, When the reversal operation detection means detects the reversal operation of the cleaning step from the forward direction to the return direction, the tread plate opening / closing means opens the tread plate, and the electromagnet means is operated to activate the magnetic fluid. When the reversing operation detecting unit detects the reversing operation from the return side direction of the cleaning step to the forward side direction, the tread plate opening / closing unit closes the tread plate, and The operation of the electromagnet means is stopped to stop the generation of magnetic force for attracting the magnetic fluid.

  Further, according to the present invention, the electromagnet means includes a generator that generates power in synchronization with a front wheel of the cleaning step, and an electromagnet that uses the generator as a power source. A link mechanism provided with a gap holding small wheel for holding a gap between the upper surface of the oil pan and the gap holding small wheel by operating the link mechanism when the cleaning step moves in the return direction. Projecting from the tread plate toward the upper surface of the oil pan, and when the cleaning step moves in the forward direction, the link mechanism is operated to move the gap holding small wheel inward of the tread plate. An actuator and spring means for operating the link mechanism to hold the tread plate in a closed state when the cleaning step moves in the forward direction; To is characterized in that a configuration of disposing the electromagnets of at least the inversion operation detecting means and the electromagnet means.

  Further, according to the present invention, when the cleaning step moves in the return direction, the tread plate is rotated and opened in the direction toward the upper surface of the oil pan with the support shaft as a fulcrum by the action of the actuator. It is characterized by having a configuration.

  Further, according to the present invention, when the cleaning step moves in the forward direction, the actuator is cut off, and the spring force of the spring means causes the support shaft to be used as a fulcrum on the step frame. It is characterized in that it is configured to be closed and fixed to the step frame by rotating it in the direction to face.

  According to the present invention, at least one of a plurality of steps that are connected endlessly and circulate between the left and right entrances and exits is a cleaning step, and the cleaning step is detected by the reversing operation detection unit. When a reversal operation of the cleaning step from the forward direction to the return direction is detected, a magnetic force is generated that opens the step plate by the step plate opening / closing means and operates the electromagnet means to adsorb the magnetic fluid. And when the reversing operation detecting unit detects the reversing operation of the cleaning step from the return side direction to the forward side direction, the tread plate opening / closing unit closes the tread plate and operates the electromagnet unit. Since the generation of magnetic force to stop the magnetic fluid to be stopped is stopped, the oil pan cleaning operation can be continuously performed while the passenger conveyor is normally operated. In addition, when the cleaning step moves in the return direction, the magnetic means is adsorbed by operating the electromagnet means, so that the magnetic pan can be used even if there are various protrusions on the oil pan. An oil pan cleaning machine for passenger conveyors that allows fluid and dust to easily move over the protrusions and smoothly collect dust on the upper surface of the oil pan without preparing a large number of differently shaped cleaning members in advance. can get.

  Hereinafter, one embodiment of an oil pan cleaning machine for passenger conveyors according to the present invention will be described with reference to FIGS. FIG. 1 is a schematic structural diagram of a passenger conveyor according to an embodiment of the present invention. FIG. 2 is an explanatory diagram of an operation state of the oil pan cleaner for the passenger conveyor when the step moves in the return direction according to the embodiment of the present invention. Drawing 3 is an operation state explanatory view of the oil pan cleaner for passenger conveyors when a step moves to the going side direction concerning one embodiment of the present invention. FIG. 4 is an explanatory diagram of a movement trajectory during the cleaning operation of the oil pan cleaner for passenger conveyor according to the embodiment of the present invention.

  As shown in FIG. 1, a passenger conveyor 1 according to an embodiment of the present invention shown in FIG. 1 includes a plurality of steps 3 including steps that circulate between the left and right entrances 2, 2 </ b> A, and the like. A balustrade 4 erected on both sides, an oil pan 5 provided opposite to the lower side of the step 3, a moving chain (step chain) 6 in which these steps 3 are connected endlessly, and the moving chain 6 By moving the terminal gears 7 and 7A for continuously circulating the steps 3 and the boarding gates (floor plates) 8 and 8A provided at the left and right entrances 2 and 2A, and the upper end portion of the balustrade 4 The handrail 9 that moves in the same direction in synchronization with the step 3 is at least included. The plurality of steps 3 connected endlessly reverse the moving direction in the lower machine room 10 of the boarding board 8 at the boarding gate 2 by the terminal gear 7, and the boarding door 2A by the terminal gear 7A. By reversing the moving direction in the upper machine room 10A of the boarding board 8A at the entrance / exit, the board is circulated between the left / right entrances 2 and 2A. In a plurality of steps 3 that circulate continuously, the direction in which the step 3 moves upward is referred to as the forward direction Q of the step 3, and the direction in which the step 3 moves downward is referred to as the return direction P of the step 3. .

  As shown in FIGS. 1 to 4, the step 3 includes a step frame (step frame) 3A, a step plate (step tread) 3B, a riser 3C, a front wheel 3D, and a rear wheel 3E. The plurality of steps 3 connected in an endless manner are connected to the left and right entrances 2, 2 by reversing the direction of movement below the entrance / exit floor plates 8, 8 A at the entrances 2, 2 A by the terminal gears 7, 7 A. It is designed to circulate between 2A.

  As shown in FIG. 1, a drive motor 11, a drive sprocket 12, and a speed reducer 13 are disposed in the upper machine room 10 </ b> A of the passenger conveyor 1. A drive chain 14 is wound around the terminal gear 7 </ b> A and the drive sprocket 12.

  At least one of the plurality of steps 3 that are endlessly connected and circulate between the left and right entrances 2 and 2A is a cleaning step 15. As shown in FIGS. 2 and 3, the cleaning step 15 is provided such that the step plate 3B can be opened and closed with respect to the step frame 3A by the support shaft 16 as indicated by the arrow R, and the magnetic fluid 17 sprayed on the upper surface of the oil pan 5 is provided. Electromagnetic means 18 for adsorbing, and reversal detecting the reversing operation of the cleaning step 15 from the forward side direction Q to the return side direction P and the reversing operation of the cleaning step 15 from the return side direction P to the forward side direction Q. An operation detecting means 19 and a tread board opening / closing means 20 for opening and closing the tread board 3B are provided, and when the reversing operation detecting means 19 detects a reversing operation from the forward side direction Q to the returning side direction P of the cleaning step 15. The tread board opening / closing means 20 opens the tread board 3B, and the electromagnet means 18 is operated to generate a magnetic force F for attracting the magnetic fluid 17, and the reversing operation detection means 19 is used for cleaning. When the reversal operation of the step 15 from the return side direction P to the forward side direction Q is detected, the tread plate 3B is closed by the tread plate opening / closing means 20 and the operation of the electromagnet means 18 is stopped to adsorb the magnetic fluid 17. In this configuration, the generation of the magnetic force F is stopped.

  The electromagnet means 18 includes a generator 21 that generates power in synchronization with the front wheel 3D of the cleaning step 15 and an electromagnet 22 that uses the generator 21 as a power source. The tread board opening / closing means 20 is provided when the cleaning mechanism 15 moves in the return side direction P and the link mechanism 24 provided with the gap holding small wheels 23 for holding the gap G between the tread board 3B and the oil pan 5 upper surface. The link mechanism 24 is operated to cause the gap maintaining small wheel 23 to protrude from the tread 3B toward the upper surface of the oil pan 5, and when the cleaning step 15 moves in the forward direction Q, the link mechanism 24 is operated to move the gap. An actuator 25 for moving the holding small wheel 23 inward of the tread 3B, and a link mechanism 23 when the cleaning step 15 moves in the forward direction Q to hold the tread 3B in a closed state. And spring means 26. The gap holding small wheel 23 is made of, for example, elastic rubber.

  The cleaning step 15 is configured such that when the cleaning step 15 moves in the return side direction P, the step plate 3B rotates in the direction toward the upper surface of the oil pan 5 with the support shaft 19 as a fulcrum by the action of the actuator 25. It is as. When the cleaning step 15 moves in the forward direction Q, the step plate 3B of the cleaning step 15 is disconnected from the actuator 25, and the spring force of the spring means 26 causes the support shaft 19 to act as a fulcrum on the step frame 3A. It is set as the structure which rotates in the direction to face and is fixedly held by the step frame 3A.

  The magnetic fluid 17 is, for example, a highly viscous material in which magnetic powder is mixed with oil. The actuator 25 is configured to linearly move like a hydraulic cylinder or a jack, for example. When the cleaning step 15 is moving in the return direction P, the weight of the electromagnet 22 of the reversing motion detection means 19 and the electromagnet means 18 acts in the direction to open the tread 3B, and the cleaning step When 15 is moving in the forward direction Q, the reverse operation is performed on the back side of the tread 3B so that the weight of the electromagnet 22 of the reversing operation detecting means 19 and the electromagnet means 18 acts in the direction of closing the tread 3B. The detecting means 19 and the electromagnet 22 of the electromagnet means 18 are arranged.

  The spring means 26 is composed of, for example, a coil spring, and is attached to the link mechanism 24 so that an urging force in a direction for closing the tread plate 3B is always generated. When the reversal operation detection means 19 detects the reversal operation of the cleaning step 15 from the forward side direction Q to the return side direction P, the actuator 25 starts operating and reverses the reversal operation. When the detection means 19 detects the reversal operation of the cleaning step 15 from the return side direction P to the forward direction Q, the operation of the generator 21 is stopped to stop the operation. When the actuator 25 is actuated, as shown in FIG. 2, the link mechanism 24 is operated in the direction in which the tread 3B is opened against the spring force of the spring means 26. When the operation of the actuator 25 is stopped, as shown in FIG. 3, the link mechanism 24 is pulled by the spring force of the spring means 26, so that the link mechanism 24 is operated in the direction of closing the tread plate 3B.

  Next, the cleaning operation of the passenger conveyor oil pan cleaner according to the present embodiment having the above-described configuration will be specifically described.

  First, before the passenger conveyor 1 is operated, the cleaning step 15 is previously incorporated into the plurality of steps 3 and then the passenger conveyor 1 is operated, so that the reversing operation detection means 19 causes the cleaning step 15 to move forward. When a reversal operation from the direction Q to the return side direction P is detected, the treadle 3B is opened and the gap holding small wheel 23 is operated by operating the actuator 25 by operating the generator 21 as shown in FIG. Is projected from the tread 3B so as to come into contact with the oil pan 5, and at the same time, the electromagnet means 18 is operated to generate a magnetic force F that attracts the magnetic fluid 17 in the electromagnet 22, thereby causing the electromagnet 22 to have an upper surface on the oil pan 5. The magnetic fluid 17 sprayed on is adsorbed magnetically. In this state, when the cleaning step 15 is moved from the upper machine room 10A side of the passenger conveyor 1 toward the lower machine room 10 as shown by a locus X1 shown in FIG. The magnetic fluid 17 spread on the oil pan 5 in the position is moved as shown by a locus X2 shown in FIG. 4, and the dust W on the oil pan 5 is scraped up to the lower machine chamber 10 side.

  Next, when the cleaning step 15 moves to the lower machine room 10 and the reversing operation detecting means 19 detects the reversing operation of the cleaning step 15 from the return side direction P to the forward direction Q, the generator 21 When the operation is stopped and the operation of the actuator 25 is stopped, the tread plate 3B is closed, and the gap maintaining small wheel 23 moves inward of the tread plate 3B (moves to a position that does not protrude from the surface of the tread plate 3B). At the same time, the operation of the electromagnet means 18 is stopped so that the magnetic force F that attracts the magnetic fluid 17 is not generated in the electromagnet 22, so that the dust W collected on the lower machine chamber 10 side is applied to the electromagnet 22. Magnetic adsorption will not occur. In this state, as shown in FIG. 3, the state where the tread plate 3B is closed is strongly held by the spring force of the spring means 26, and the clearance holding small wheel 23 does not protrude from the upper surface of the tread plate 3B. 15 can be safely moved from the lower machine room 10 side toward the upper machine room 10A side even when the passenger on the cleaning step 15 is in the state.

  The cleaning step 15 moves from the lower machine room 10 side to the upper machine room 10A side, and the reversing operation detecting means 19 detects again the reversing operation of the cleaning step 15 from the forward direction Q to the return side direction P. Then, the tread plate 3B is opened again, and the gap maintaining small wheel 23 is projected from the tread plate 3B so as to contact the oil pan 5, and at the same time, the electromagnet 22 is caused to generate a magnetic force F that attracts the magnetic fluid 17. Thus, the magnetic fluid 17 dispersed on the upper surface of the oil pan 5 is magnetically adsorbed to the electromagnet 22, so that the dust W remaining on the magnetic fluid 17 and the oil pan 5 is removed by the lower machine as the cleaning step 15 moves. Scraped to the chamber 10 side. Then, when the cleaning step 15 moves to the lower machine room 10, again when the reverse operation detection means 19 detects the reverse operation of the cleaning step 15 from the return side direction P to the forward direction Q, again. The tread plate 3B is closed, and the gap maintaining small wheel 23 is moved inward of the tread plate 3B (moved to a position not protruding from the surface of the tread plate 3B), and at the same time, a magnetic force F that attracts the magnetic fluid 17 is applied to the electromagnet 22. By not generating the dust W, the dust W scraped to the lower machine room 10 side is prevented from being magnetically attracted to the electromagnet 22. In this way, the cleaning step 15 can be continuously and safely circulated between the entrances 2 and 2A together with the plurality of steps 3 connected endlessly. Therefore, the oil pan 5 can be automatically cleaned by the cleaning step 15 during normal operation of the passenger conveyor 1. Note that the dust W on the oil pan 5 collected on the lower machine chamber 10 side may be sucked and discarded by a vacuum cleaner or the like.

  According to the oil pan cleaning machine for passenger conveyors of the present embodiment, at least one of the plurality of steps 3 connected endlessly and circulated between the left and right entrances 2 and 2A is cleaned. When the reverse operation of the cleaning step 15 from the forward direction Q to the return direction P of the cleaning step 15 is detected by the reverse operation detecting means 19, the step board 3B is opened by the step board opening / closing means 20, In addition, the electromagnet means 18 is operated to generate a magnetic force F that attracts the magnetic fluid 17, and the reversal operation detection means 19 detects the reversal operation of the cleaning step 15 from the return side direction P to the forward direction Q. The tread board opening / closing means 20 closes the tread board 3B, and the operation of the electromagnet means 18 is stopped to stop the generation of the magnetic force F that attracts the magnetic fluid 17, so that the passenger While normal operation of the conveyer 1, sequentially enables the implementation of cleaning of the oil pan 5, it is possible to reduce of labor reduction and cleaning work of cleaning time.

  According to the passenger pan oil pan cleaning machine of the present embodiment, when the cleaning step 15 moves in the return direction P, the electromagnet means 18 is operated to adsorb the magnetic fluid 17, whereby the oil pan 5 Even if there are various types of protrusions, the magnetic fluid 17 and dust W can be easily moved over the protrusions, and damage to the oil pan 5 and the like can be prevented, and many cleaning members having different shapes are prepared in advance. Even if not, the dust W on the upper surface of the oil pan 5 can be smoothly scraped and the production cost can be reduced.

  Furthermore, according to the oil pan cleaning machine for passenger conveyor of the present embodiment, the operation of the passenger conveyor 1 can be performed if the cleaning step 15 is previously incorporated in the step 3 of the passenger conveyor 1 in a production factory or the like. Since the operation of stopping and attaching the oil pan cleaner for the passenger conveyor is unnecessary, the oil pan can be continuously cleaned even during normal operation of the passenger conveyor, and the usability is excellent.

  Further, according to the oil pan cleaner for passenger conveyor of the present embodiment, when the cleaning step 15 is moving in the return side direction P, the weight of the electromagnet 22 of the reversing operation detecting means 19 and the electromagnet means 18 and The weight of the tread 3B acts in the direction to open the tread 3B, and when the cleaning step 15 moves in the forward direction Q, it acts in the direction to close the tread 3B. Therefore, the opening / closing operation of the tread board 3B can be performed smoothly.

  Furthermore, according to the oil pan cleaning machine for passenger conveyor of the present embodiment, even when the cleaning step 15 moves in the return side direction P, even if the tread 3B opens with the support shaft 16 as a fulcrum, the gap The holding small wheel 23 prevents the tread plate 3B from coming into contact with the oil pan 5, so that the cleaning step 15 is smoothly moved toward the upper machine room 10A without damaging the tread plate 3B and the oil pan 5 upper surface. Can do.

1 is a schematic structural diagram of a passenger conveyor according to an embodiment of the present invention. It is operation state explanatory drawing of the oil pan cleaner for passenger conveyors in connection with one Embodiment of this invention when a step moves to the return side direction. It is operation state explanatory drawing of the oil pan cleaner for passenger conveyors when a step moves to a going side direction according to one Embodiment of this invention. It is explanatory drawing of the movement locus | trajectory at the time of the cleaning operation | movement of the oil pan cleaner for passenger conveyors concerning one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Passenger conveyor 2, 2A Entrance / exit 3 Step 3A Step frame 3B Step board 3C Riser 3D Front wheel 3E Rear wheel 4 Railing 5 Oil pan 6 Moving chain 7, 7A Terminal gear 8, 8A Entrance / exit floor board 9 Hand rail 10 Upper machine room 10A upper part Machine room 11 Drive motor 12 Drive sprocket 13 Reducer 14 Drive chain 15 Cleaning step 16 Support shaft 17 Magnetic fluid 18 Electromagnet means 19 Reversing motion detection means 20 Tread plate opening / closing means 21 Generator 22 Electromagnet 23 Gap holding small wheel 24 Link mechanism 25 Actuator 26 Spring means

Claims (4)

  At least one of a plurality of steps connected endlessly and circulated between the left and right entrances is used as a cleaning step, and the cleaning step is provided opposite to the plurality of steps. An oil pan cleaning machine for a passenger conveyor that cleans an upper surface of an oil pan, wherein the cleaning step includes a step frame, a step plate, a riser, a front wheel, and a rear wheel, and the step plate is supported by a support shaft with respect to the step frame. An electromagnet means for adsorbing the magnetic fluid sprayed on the upper surface of the oil pan to the cleaning step, a reverse operation of the cleaning step from the forward side direction to the return side direction, and the cleaning step A reversing operation detecting means for detecting a reversing operation of the step from the return side direction to the forward side direction; and a tread plate opening / closing means for opening and closing the tread plate. When a reversal operation from the forward direction of the step to the return direction is detected, the tread plate is opened by the tread plate opening and closing means, and the electromagnet means is operated to generate a magnetic force that attracts the magnetic fluid. When the reversing operation detecting unit detects the reversing operation of the cleaning step from the return side direction to the forward side direction, the tread plate opening / closing unit closes the tread plate and stops the operation of the electromagnet unit. An oil pan cleaning machine for passenger conveyors, wherein the generation of magnetic force for adsorbing the magnetic fluid is stopped.   The electromagnet means includes a generator that generates power in synchronization with the front wheel of the cleaning step, and an electromagnet that uses the generator as a power source, and the tread plate opening / closing means includes the tread plate and the oil pan upper surface. A link mechanism provided with a gap holding small wheel for holding a gap therebetween, and when the cleaning step moves in a return direction, the link mechanism is operated to move the gap holding small wheel from the tread to the oil An actuator for projecting toward the upper surface of the pan and operating the link mechanism when the cleaning step moves in the forward direction, and moving the gap holding small wheel inward of the tread plate, and the cleaning step Spring means for operating the link mechanism to hold the step board closed when the step moves in the forward direction, and at least the front side Inversion operation detecting means and the passenger oil pan cleaner conveyor according to claim 1, characterized in that the electromagnet was disposed constituting the electromagnet means.   When the cleaning step moves in the return direction, the step plate is configured to rotate and open in the direction toward the upper surface of the oil pan with the support shaft as a fulcrum by the action of the actuator. The oil pan cleaner for passenger conveyors according to claim 2.   When the cleaning step moves in the forward direction, the actuator is cut off and rotated by the spring force of the spring means in the direction toward the step frame with the support shaft as a fulcrum. 4. The oil pan cleaner for passenger conveyor according to claim 3, wherein the oil pan cleaner is closed and fixed to the step frame.

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