JP2012062167A - Cleaning method of escalator and cleaning device used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning method of an escalator capable of cleaning oil and dirt deposited on the floor of truss easily and a cleaning device used therefor.SOLUTION: The cleaning device includes a cleaning device holding member 30 attached to a step shaft 12 rotatably by fixing a fitting clasp 33 to one step shaft within a return run side interval, a first cleaning device 35 fixed to the holding rod 31 of the cleaning device holding member 30 so as to be arranged touchably to the bottom surface 60 of truss, a pressure additional member 40 installed to the step shaft 12 rotatably by fixing a clamp 43 to a step shaft located below the step shaft 12 to which the cleaning device holding member 30 is installed, and a coil spring 45 fixed to a pair of spring support sections 34 and 44 of the cleaning device holding member 30 and the pressure additional member 40 to transfer rotation torque at circumference of the step shaft 12 of the pressure additional member 40 to the cleaning device holding member 30.

Description

  The present invention relates to a method for cleaning a truss floor surface of an escalator and a cleaning device used therefor.

In general, the bottom surface of the escalator truss is easily soiled with oil or dust, and is regularly cleaned. This kind of cleaning removes almost half of all steps installed endlessly in the truss and moves them to the bottom of the truss to secure the truss work space. Clean the upper part, then return the step that was moved below the truss to the upper part of the truss, clean the lower part of the truss, and when the entire truss has been cleaned, return the removed step into the truss. It was.
However, every time the cleaning work is performed, it is necessary to remove and attach almost half of the steps, which increases the work load and increases the work time.

  In view of such circumstances, the cleaning mat is continuously installed on the floor of the truss in the up-and-down direction, and at the time of cleaning, the upper end of the cleaning mat is used as one of the steps located in the upper part of the truss. Connect and lift the step to draw the cleaning mat to the work pit provided at the lower end of the truss, collect oil and debris accumulated on the cleaning mat, and then move the upper end of the cleaning mat. The floor of the conventional escalator truss that releases the connection between the cleaning mat and the step by moving the upper end of the cleaning mat to the upper part of the floor of the truss A cleaning method has been proposed (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 07-252081

  In the conventional method of cleaning the floor of an escalator truss, the cleaning mat attached to the entire area of the truss floor in the up-and-down direction is drawn to the work pit side, and oil or dirt accumulated on the cleaning mat is removed. Although it is collected, the work pit below the truss is narrow, and it is impossible to collect oil and dust deposited on the cleaning mat. Therefore, a separate collection work space is required, and it is necessary to carry out the collection work by carrying out the cleaning mat drawn to the work pit to a separate collection work space prepared separately, which makes the collection work complicated. There was a problem that.

  This invention was made in order to solve the said subject, and it aims at obtaining the cleaning method of the escalator which can clean easily the oil, the dust, etc. which accumulated on the floor surface of the truss, and the cleaning apparatus used therefor.

  An escalator cleaning apparatus according to the present invention includes a truss spanned between an upper floor and a lower floor, an upper step sprocket installed in an upper machine room of the truss, and a lower step installed in a lower machine room of the truss. An endless step chain wound around a step sprocket and a step shaft attached to the step chain at regular intervals are fixed endlessly and interlocked with the travel of the step chain An escalator cleaning device comprising a plurality of steps that circulate and travel, wherein the holding rod has a predetermined length, is spaced apart in the length direction of the holding rod, and the length direction from the holding rod A pair of holding rod support arms that extend in the same direction and in the same direction, and a holding member mounting bracket that is attached to the tip of the pair of holding rod support arms. Steps A cleaning tool holding member rotatably attached to a first step shaft that is one of the step shafts located in the return path, a cleaning tool that is attached to the holding rod and cleans the bottom surface of the truss, A pair of pressure-applying rods that are spaced apart from each other in the length direction of the pressure-applying rod and that extend from the pressure-applying rod in a direction orthogonal to the length direction and in the same direction An arm and a pressure applying member mounting bracket attached to the tip of the pair of pressure applying rod support arms, and the step applying shaft located in the return path of the step by the pressure applying member mounting bracket; A pressure applying member rotatably attached to a second step shaft located below the first step shaft; and a rotational torque of the pressure applying member around the second step shaft is transmitted to the holding rod. The cleaning tool It comprises a pressure transmitting member which serves to press the bottom surface, the.

  In this invention, the rotational torque around the second step axis by the pressure application member is transmitted to the cleaning tool holding member via the pressure transmission member, and acts to press the cleaning tool against the truss bottom surface. Then, when the escalator is moved up, the cleaning tool moves to the lower machine room while being pressed against the bottom surface of the truss, so that oil and dust adhering to the bottom surface of the truss are drawn together with the cleaning tool to the lower machine room. . Therefore, oil or dust drawn to the lower machine room can be collected using a brush or the like in the lower machine room, and a separate collection work space is not required, and the collection work is simplified.

It is a side view which shows typically the whole structure in an escalator. It is a perspective view explaining the structure of the step in an escalator. It is a disassembled perspective view explaining the structure of the cleaning apparatus which concerns on embodiment of this invention. It is a perspective view which shows the cleaning tool used for the cleaning apparatus which concerns on embodiment of this invention. It is a principal part perspective view explaining the cleaning method of the escalator which concerns on embodiment of this invention.

First, before describing an embodiment, the structure of an escalator will be described with reference to the drawings.
FIG. 1 is a side view schematically showing the overall configuration of the escalator, and FIG. 2 is a perspective view illustrating the configuration of steps in the escalator.

  1 and 2, the escalator 1 is composed of an inclined portion 2a, and an upper horizontal portion 2b and a lower horizontal portion 2c that protrude horizontally from the upper and lower ends of the inclined portion 2a. The truss 2 installed between the upper and lower floors with the section 2c installed on the upper and lower floors, the electric motor 5 installed in the upper machine room 3 provided in the upper horizontal part 2b, and the upper machine room 3 In the lower machine room 4 provided in the lower horizontal part 2c, the drive sprocket 7 installed in the inside and connected with the electric motor 5 and the drive chain 6, the upper step sprocket 8 attached coaxially with the drive sprocket 7, and The lower step sprocket 9 installed, the endless step chain 10 wound around the upper step sprocket 8 and the lower step sprocket 9, and the step chain 10 A plurality of steps 11 that are fixed to a step shaft 12 that is attached at regular intervals and are driven by the electric motor 5 to circulate between the upper and lower entrances 15 and 16, and the steps 11 that circulate and travel On the forward path side, a pair of balustrades 19 erected on the truss 2 so as to extend along the traveling direction of the step 11 on both sides of the step 11, and the same speed as the step 11 by the moving handrail driving device 13 And an endless moving handrail 20 that moves while being guided by the balustrade 19, and a control panel 14 that is provided in the upper machine room 3 and controls the driving of the electric motor 5.

  Further, the upper entrance / exit 15 is configured by installing a floor plate 17 on the upper horizontal part 2 b of the truss 2 so as to close the upper machine room 3. The lower entrance / exit 16 is configured by installing a floor plate 18 on the lower horizontal portion 2 c of the truss 2 so as to close the lower machine room 4.

  In the escalator 1 configured as described above, the electric motor 5 is driven, the rotational torque of the electric motor 5 is transmitted to the driving sprocket 7 through the driving chain 6, and the driving sprocket 7 and the upper step sprocket 9 are rotationally driven. As a result, the endless step chain 10 wound around the upper step sprocket 8 and the lower step sprocket 9 circulates and the step 11 circulates between the upper entrance 15 and the lower entrance 16. Run. Further, the rotational torque of the drive sprocket 7 is transmitted to the moving handrail driving device 13, and the moving handrail 20 is guided and moved by the balustrade 19 in synchronization with the step 11. And when the escalator 1 is driving up, for example, the user gets into the step 11 from the lower entrance 16 on the lower floor and is transported to the upper entrance 15 from the step 11 to the upper entrance. You can change to the mouth 15 and move upstairs.

  The circulation path of the step 11 includes a forward section that travels between the floor plate 17 and the floor plate 18, an upper reversing portion that reverses the traveling direction at the lower portion of the floor plate 17, and a lower reversal that reverses the traveling direction at the lower portion of the floor plate 18. And a return side section that travels in the truss 2 between the upper inversion part and the lower inversion part. Here, if the escalator 1 travels upward, that is, if the step 11 travels upward from the lower entrance 16 to the upper entrance 15, the step 11 moves to the floor plate 17 in the forward section, and the floor plate 17. Sinks into the truss 2 from the end on the lower entrance 16 side, and the direction of movement is reversed via the upper reversing part, and the return side section in the truss 2 moves to the lower part of the floor plate 17 and passes through the lower reversing part. Thus, the direction of movement is reversed and appears from the end of the floor board 18 on the upper entrance / exit 15 side, and the forward path section moves to the upper entrance / exit 15 side.

  Hereinafter, preferred embodiments of a cleaning method for an escalator according to the present invention and a cleaning device used therefor will be described with reference to the drawings.

  FIG. 3 is an exploded perspective view for explaining the configuration of the cleaning device according to the embodiment of the present invention, and FIG. 4 is a perspective view showing a cleaning tool used in the cleaning device according to the embodiment of the present invention.

  In FIG. 3, the cleaning tool holding member 30 is separated from the holding rod 31 so as to be separated from each other in the length direction of the holding rod 31 in parallel with each other and perpendicular to the holding rod 31. A pair of support arms 32 extending in the same direction, a mounting bracket 33 attached to the tip of each support arm 32, spaced apart in the length direction of the holding rod 31, parallel to each other, and the holding rod 31 And three spring receiving portions 34 projecting from the holding rod 31 so as to be orthogonal to each other. The support arm 32 and the spring receiving portion 34 are attached to the holding bar 31 so as to be plane-symmetric with respect to a plane orthogonal to the holding bar 31 passing through the center of the holding bar 31 in the length direction.

  As will be described later, the cleaning tool holding member 30 is attached to the step shaft 12 so that the mounting bracket 33 is attached to the step shaft 12 located in the return path section so as to be rotatable. The length of the support arm 32 is longer than the distance in the vertical direction between the step shaft 12 and the bottom surface of the inclined portion 2a of the truss 2 (hereinafter referred to as the truss bottom surface 60). Therefore, the cleaning tool holding member 30 attached to the step shaft 12 is disposed so that the holding rod 31 is in contact with the truss bottom surface 60 on the lower machine chamber 4 side from the vertical position of the step shaft 12. At this time, the spring receiving portion 34 protrudes from the holding rod 31 so as to be slightly upward with respect to the horizontal direction.

  The first first cleaning tool 35 is formed into a V-shaped holding frame 36 and V-shaped, and extends from the V-shaped inner edge of each side 36 a of the holding frame 36. In addition, a rubber blade 37 fixed to the lower surface of the holding frame 36 and a mounting bracket 38 fixed to a substantially central portion in the length direction of the upper surface of each side 36a of the holding frame 36 are provided. The holding frame 36 and the blade 37 are fabricated so that the V-shaped opening length is substantially equal to the width direction length of the truss bottom surface 60. Further, the extending portion from the edge portion of the side 36a of the blade 37 is formed in a cross-sectional shape that tapers as it extends.

  As will be described later, the first first cleaning tool 35 is attached to the holding bar 31 and attached to the holding bar 31 so as to be rotatable. When the cleaning tool holding member 30 is attached to the step shaft 12, the first first cleaning tool 35 is disposed such that the V-shaped opening faces the lower machine chamber 4 side.

  The pressure application member 40 is the same as the pressure application bar 41 so as to be spaced apart from the pressure application bar 41 of a predetermined length in the length direction of the pressure application bar 41, parallel to each other and orthogonal to the pressure application bar 41. A pair of support arms 42 extending in the direction, a mounting bracket 43 attached to the tip of each support arm 42, and a pressure application rod 41 that are spaced apart from each other in the length direction and parallel to each other. , And three spring receiving portions 44 projecting from the pressure applying rod 41. The support arm 42 and the spring receiving portion 44 are attached to the pressure application rod 41 so as to be plane-symmetric with respect to a plane orthogonal to the pressure application rod 41 passing through the center of the pressure application rod 41 in the length direction. .

  As will be described later, the pressure applying member 40 is attached to the step shaft 12 by attaching a mounting bracket 43 to the step shaft 12 located adjacent to the lower machine chamber 4 side of the step shaft 12 to which the cleaning tool holding member 30 is attached. Attached to be rotatable. The length of the support arm 42 is shorter than the distance between the holding rod 31 in contact with the truss bottom surface 60 of the cleaning tool holding member 30 attached to the step shaft 12 and the step shaft 12 to which the pressure applying member 40 is attached. Have been made. The spring receiving portion 44 is opposed to the spring receiving portion 34 when the pressure applying rod 41 of the pressure applying member 40 attached to the step shaft 12 comes close to the holding rod 31 in contact with the truss bottom surface 60, and The pressure applying rod 41 protrudes so that the protruding directions of the two substantially coincide.

  Coil springs 45 as pressure transmission members are attached to each pair of opposed spring receivers 34 and 44, and transmit the load of the pressure applying member 40 to the cleaning tool holding member 30.

  In FIG. 4, the second cleaning tool 46 includes a holding frame 47 having a predetermined length, and a felt made of felt disposed across the entire length of the holding frame 47 so as to extend from the lower end of the holding frame 47. The brush portion 48 and a mounting bracket 49 attached to the central portion in the length direction of the upper surface of the holding frame 47 are provided. The holding frame 47 is formed to have a length that is approximately half the width of the truss bottom surface 60 in the width direction.

  Next, a method for cleaning the truss bottom surface 60 using the cleaning device configured as described above will be described with reference to FIG.

  First, the mounting bracket 38 is attached to the holding rod 31, the mounting bracket 38 is fastened by the bolt 50 a and the nut 51 a, and the first first cleaning tool 35 is rotatably attached to the holding rod 31. At this time, the V-shaped opening side of the first first cleaning tool 35 coincides with the extending direction of the spring receiving portion 34, and the V-shaped apex is substantially at the center in the length direction of the holding rod 31. It attaches to the cleaning tool holding member 30 so that it may be located.

  Next, after removing about 10 steps 11 located on the upper side of the forward path section and exposing the step shaft 12, the rear end side of the part from which the steps 11 are removed is positioned on the upper side of the forward path section. Then, the escalator 1 is operated to ascend until the tip side of the part from which the step 11 has been removed is positioned on the upper side of the return side section.

  Then, the worker enters the truss 2, attaches the mounting bracket 33 to the one step shaft 12 exposed by removing the step 11 located in the return path section in the truss 2, and uses the bolt 50b and the nut 51b. The mounting bracket 33 is fastened, and the cleaning tool holding member 30 is rotatably attached to the step shaft 12. Thereby, the cleaning tool holding member 30 rotates around the step shaft 12 by its own weight, and the holding bar 31 approaches the truss bottom surface 60. When the blade 37 comes into contact with the truss bottom surface 60 due to the holding rod 31 approaching the truss bottom surface 60, the first first cleaning tool 35 rotates around the holding rod 31, and the bottom surface of the blade 37 moves to the truss. Further contact with the bottom surface 60 prevents further rotation of the cleaning tool holding member 30 around the step shaft 12. As a result, the first first cleaning tool 35 is disposed so that the V-shaped opening faces the lower floor and the entire bottom surface of the blade 37 is in contact with the truss bottom surface 60.

  Next, the mounting bracket 43 is mounted on the step shaft 12 located on the lower machine chamber 4 side of the step shaft 12 to which the cleaning tool holding member 30 is mounted, and the mounting bracket 43 is fastened by the bolt 50c and the nut 51c to press the pressure. The additional member 40 is rotatably attached to the step shaft 12. Then, the pressure applying member 40 is rotated around the step shaft 12 to bring the spring receiving portion 44 closer to the spring receiving portion 34. Therefore, the coil spring 45 is attached to each pair of the opposed spring receiving portions 34 and 44, and the setting of the cleaning device is completed as shown in FIG.

  In the cleaning device set in this way, the rotational torque around the step shaft 12 due to the weight of the pressure applying member 40 is transmitted to the cleaning tool holding member 30 via the coil spring 45, and the first first cleaning is performed. It acts to press the tool 35 against the truss bottom surface 60.

Next, the worker moves out of the truss 2 or into the upper machine room 3 to raise the escalator 1. Accordingly, the step 11 moves to the lower floor side in the return path section, and moves to the lower floor side with the first first cleaning tool 35 pressed against the truss bottom surface 60 of the bottom surface of the blade 38. Then, oil or dust adhering to the truss bottom surface 60 moves to the V-shaped bottom side of the first first cleaning tool 35 as the first first cleaning tool 35 moves to the lower floor side. Collected.
When the first first cleaning tool 35 reaches the lower machine room 4, the ascending operation of the escalator 1 is stopped, and the oil and garbage collected on the V-shaped bottom side of the first first cleaning tool 35. Collect using a brush.

  Next, the bolt 50 b and the nut 51 b are removed, and the first cleaning tool 35 is removed from the holding rod 31. Then, the mounting bracket 49 is attached to the holding rod 31, the mounting bracket 49 is fastened by the bolt 50d and the nut 51d, and the two second cleaning tools 46 are arranged in the length direction of the holding rod 31 with no gap therebetween. It adheres to 31. At this time, the second cleaning tool 46 extends over the entire region of the truss bottom surface 60 in the width direction, and the brush portion 48 is pressed against the truss bottom surface 60 by the rotational torque around the step shaft 12 due to the weight of the pressure applying member 40. It is done.

  Next, the escalator 1 is lowered. As a result, the second cleaning tool 46 moves upward in the truss 2 while wiping off oil stains remaining on the truss bottom surface 60 with the brush portion 48. When the cleaning device reaches the upper machine chamber 3, the descending operation of the escalator 1 is stopped, the bolts 50 b and 50 c and the nuts 51 b and 51 c are removed, and the cleaning device is removed from the step shaft 12. Thereafter, the escalator 1 is lowered until the part from which the step 11 has been removed reaches the upper side of the forward path section, the removed step 11 is returned to its original position, and the cleaning operation is completed.

  Thus, according to this embodiment, the mounting bracket 33 is attached to one step shaft 12 of the step shaft 12 that is located in the upper part of the return path section and is exposed in the region where the step 11 is removed. Then, the cleaning tool holding member 30 is rotatably attached to the step shaft 12, and then the mounting bracket 43 is attached to the step shaft 12 positioned below the step shaft 12 to which the cleaning tool holding member 30 is attached. 12, a pressure applying member 40 is rotatably attached, and then a coil spring 45 is attached to each pair of opposed spring receiving portions 34, 44. Thereby, the rotational torque around the step shaft 12 due to the weight of the pressure applying member 40 is transmitted to the cleaning tool holding member 30 via the coil spring 45, and the blade 37 of the first cleaning tool 35 is pressed against the truss bottom surface 60. It is done.

Therefore, when the escalator 1 is moved up and the cleaning tool 35 is moved to the lower machine chamber 4 side, the blade 37 moves to the lower machine chamber 4 side while being pressed against the truss bottom surface 60, and The adhering oil and dust can be effectively drawn toward the lower machine room 4 side.
Further, since oil and dust drawn together with the blade 37 to the lower machine room 4 can be collected with a brush or the like, a wide collection work space is not necessary and can be easily collected by work in the lower machine room 4.

  Further, the blade 37 of the cleaning tool 35 is formed in a V shape. The cleaning tool 35 is attached to the cleaning tool holding member 30 with the V-shaped opening of the blade 37 facing the lower machine chamber 4 side. Therefore, since oil, dust, and the like adhering to the truss bottom surface 60 are collected at the V-shaped bottom of the blade 37, oil and dust can be easily collected when the cleaning device reaches the lower machine chamber 4. .

  Furthermore, after collecting the oil and dust collected by the blade 37, the cleaning tool 35 is removed, and the second cleaning tool 46 having the felt-made brush portion 48 is attached to the cleaning tool holding member 30, and the escalator 1 Is running down. Therefore, oil stains remaining on the truss bottom surface 60 are wiped off by the brush portion 48, so that the truss bottom surface 60 can be cleaned cleanly.

  Since the blade 37 is made of rubber, the bottom surface of the blade 37 is also in contact with the warped portion of the truss bottom surface 60, and the remaining of oil and dust can be reduced.

  Remove the plurality of steps 11 located on the upper side of the forward path section, move the area where the steps 11 are removed to the upper side of the return path section, and attach the mounting brackets 33 and 43 to the step shaft 12; The cleaning device can be set only by fastening the bolts 50b and 50c and the nuts 51b and 51c. And the truss bottom face 60 can be cleaned only by raising the escalator 1. Therefore, the work load in the cleaning work of the truss bottom surface 60 is reduced, and the work time can be shortened.

  In the above embodiment, the cleaning tool 35 is attached to the second cleaning tool 46 after the escalator 1 is lifted and the oil or dust adhering to the truss bottom surface 60 is collected. It is assumed that the escalator 1 is moved down and wiped off the oil stains remaining on the truss bottom surface 60. If the dirt level on the truss bottom surface 60 is slight, the second cleaning tool 46 is attached and the escalator 1 is raised. The truss bottom surface 60 may be cleaned by running.

  In the above embodiment, the rubber blade 37 is used, but the blade may be made of metal. Since the metal blade has high rigidity, oil or dust attached to the truss bottom surface 60 can be removed, which is effective when the truss bottom surface 60 is dirty.

  Moreover, in the said embodiment, although the material of the member except the braid | blade 37 is not mentioned, metal materials, such as aluminum and stainless steel, should just be used as long as it has predetermined | prescribed rigidity. The pressure applying member 40 is not limited to stainless steel, and may be made of aluminum. In this case, since the pressure applying member becomes light, it is only necessary to attach a weight to the pressure applying rod to ensure a pressing force to the cleaning tool.

  1 Escalator, 2 Truss, 3 Upper machine room, 4 Lower machine room, 8 Upper step sprocket, 9 Lower step sprocket, 10 Step chain, 11 Step, 12 Step shaft, 30 Cleaning tool holding member, 31 Holding rod , 32 Support arm, 33 Mounting bracket, 35 First cleaning tool, 37 Blade, 40 Pressure applying member, 41 Pressure applying rod, 42 Support arm, 43 Mounting bracket, 45 Coil spring (pressure transmission member), 46 Second Cleaning tool, 48 brushed parts, 60 truss surface.

Claims (7)

A truss spanned between the upper and lower floors,
An endless step chain wound around an upper step sprocket installed in the upper machine room of the truss and a lower step sprocket installed in the lower machine room of the truss;
An escalator comprising: a plurality of steps that are fixed to each of the step shafts attached to the step chain at fixed intervals and arranged endlessly, and that circulate in conjunction with the travel of the step chain. A cleaning device,
A holding rod having a predetermined length, a pair of holding rod support arms that are spaced apart from each other in the length direction of the holding rod and extend in the same direction as the direction perpendicular to the length direction of the holding rod; and A first step which is one of the step shafts having a holding member mounting bracket attached to the ends of the pair of holding rod support arms, and located on the return path side path of the step by the holding member mounting bracket; A cleaning tool holding member rotatably attached to the shaft;
A cleaning tool mounted on the holding rod to clean the truss bottom;
A pair of pressure-applying rods that are spaced apart from each other in the length direction of the pressure-applying rod and that extend from the pressure-applying rod in a direction orthogonal to the length direction and in the same direction An arm and a pressure applying member mounting bracket attached to the tip of the pair of pressure applying rod support arms, and the step applying shaft located in the return path of the step by the pressure applying member mounting bracket; A pressure applying member rotatably attached to a second step shaft located below the first step shaft;
A pressure transmission member that acts to transmit a rotational torque around the second step axis of the pressure application member to the holding rod to press the cleaning tool against the bottom surface of the truss;
An escalator cleaning device comprising:   The cleaning tool has a V-shaped blade made of rubber or metal, and the blade is attached to the holding rod so that the V-shaped opening faces the lower machine room and the bottom surface is in contact with the truss bottom surface. The escalator cleaning device according to claim 1.   The cleaning tool has a felt-made brush portion having a predetermined length, and is attached to the holding rod so that the brush portion extends in the width direction of the truss bottom surface and contacts the truss bottom surface. The escalator cleaning apparatus according to claim 1. A cleaning method for cleaning the bottom surface of the truss using the escalator cleaning device according to claim 1,
A predetermined number of the steps located on the upper side of the forward path section are removed to expose the step shaft, and the tip side of the area where the steps are removed is positioned on the upper side of the return path section in the truss. The process of running the escalator in
Attaching the cleaning tool to the holding rod;
The holding member mounting bracket is attached to the first step shaft, which is one of the step shafts exposed in the region where the step is removed, located on the upper side of the return path section. Attaching the cleaning tool holding member to the first step shaft in a rotatable manner;
Attaching the pressure applying member mounting bracket to the second step shaft located below the first step shaft and rotatably attaching the pressure applying member to the second step shaft;
Attaching the pressure transmission member so as to transmit the rotational torque around the second step axis of the pressure applying member to the cleaning tool holding member, and pressing the cleaning tool against the bottom surface of the truss;
A step of moving the escalator upward, moving the cleaning tool to the lower machine room side, and cleaning the bottom surface of the truss.   The cleaning tool has a felt-made brush portion of a predetermined length, and is attached to the holding rod so that the brush portion is in contact with the truss bottom surface and extends in the width direction of the truss bottom surface. The cleaning method of the escalator of Claim 4 characterized by the above-mentioned.   The cleaning tool is a first cleaning tool having a V-shaped blade. The first cleaning tool directs the V-shaped opening of the blade toward the lower machine room and the bottom surface of the blade is the truss. The escalator cleaning method according to claim 4, wherein the escalator is attached to the holding rod so as to contact the bottom surface. Removing the first cleaning tool after the first cleaning tool reaches the lower machine room;
Attaching a second cleaning tool having a felt-made brush portion of a predetermined length to the holding rod so that the brush portion contacts the truss bottom surface and extends in the width direction of the truss bottom surface; ,
The escalator cleaning method according to claim 6, further comprising a step of moving the escalator down to move the second cleaning tool toward the upper machine room and cleaning the bottom surface of the truss.

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