JP2010006558A - Oil pan cleaner for passenger conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil pan cleaner for passenger conveyors with high cleaning performance and high versatility. <P>SOLUTION: This oil pan cleaner is equipped with a plate-like intermediate body 10, a supporting member 11 rotatably provided at one end of the intermediate body 10, an obtuse-angled dog-legged elastic plate 12 provided at the other end of the intermediate body 10, and folded back parts 13 provided at both side ends of lower end of the elastic plate 12. The supporting member 11 is mounted on a step 3 of the passenger conveyors 1, 14, the intermediate body 10 is extended in the advancing direction of the step 3, and the lower end of the elastic plate 12 is slid and made to travel on the oil pan 5. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a passenger conveyor oil pan cleaning machine for cleaning dust accumulated on an oil pan extending along the lower side of a passenger conveyor.

Conventionally, passenger conveyors were often provided for visitor services in department stores, but recently, due to the development of transportation facilities, a lot of passenger conveyors have been installed for passenger lift services to the station platform. Many people use it. In this way, in passenger conveyors used by many people, dust that has fallen from people's clothing, etc., or dust that has been carried by the wind, penetrates into the passenger conveyor through gaps in the steps of the passenger conveyor, and the passenger conveyor It accumulates over a long period on the oil pan that extends along the lower side, and a large amount of accumulated dust can cause damage to the passenger conveyor, or it can ignite due to some sparks, overheating, or the afterglow of thrown tobacco. There was a risk of fire.
Thus, conventionally, about half of the passenger conveyor's screwed steps are removed, and the worker cleans the dust accumulated on the oil pan by scissors and brushes. The above cleaning work in a narrow space inside the escalator becomes dusty and oily, which not only increases the psychological distress of the worker, but also removes a heavy step and then installs it is a heavy labor Two to several workers spent half a day to one day for this work.

  As a conventional example of an oil pan cleaning device for alleviating the heavy burden in the cleaning work of such workers, a cleaning tool is attached to the front wheel shaft of the step chain connected endlessly, and this cleaning tool travels around with the passenger conveyor. By doing so, a passenger conveyor cleaning machine has been proposed in which dust accumulated on an oil pan is easily scraped (for example, see Patent Document 1).

  FIG. 12 is a perspective view illustrating a configuration of a conventional passenger conveyor cleaning machine, and FIG. 13 is a side view illustrating a use state of the cleaning machine. As shown in FIG. 12, the conventional passenger conveyor cleaning machine 23 includes a rigid bottom plate 24a, side plates 24b standing in pairs on both sides of the bottom plate 24a, and standing at the rear end of the bottom plate 24a. The rear plate 24c, a support member 24d fixed to the side end portion of the rear plate 24c with a bolt, and a dust plate 25 rotatably provided at the front end of the bottom plate 24a by a hinge 25a. When the passenger conveyor cleaning machine 23 is used, as shown in FIG. 13, a worker attaches a support member 24d to the shaft of the front wheel 29 of the step 28 below the step chain 27 in the machine room 26 so as to be rotatable. The step 28 connected to the step chain 27 is caused to travel by the driving force of the terminal gear 30. As a result, the dust scraper 25 slides on the oil pan 31, and dust accumulated on the oil pan 31 can be scraped up.

  Here, the oil pan 31 has a structure in which the upper oil pan 31 is arranged from the lower side to the upper side so as to partially overlap the lower oil pan 31 from the upper reversing part to the lower reversing part of the passenger conveyor. By welding the locations, oil is prevented from leaking from the joints, but there are also locations in the oil pan 31 where the seams overlap.

  FIG. 14 is a side view showing a state in which the cleaner 23 slides on a reverse seam portion on the oil pan. As shown in FIG. 14, the dust scraper plate 25 of the passenger conveyor cleaning machine 23 has a longitudinal end portion 25 b having a curved surface shape having a radius larger than the thickness of the oil pan 31, or a distal end in contact with the oil pan 31. Since the rising angle β with respect to the oil pan 31 on the front surface of the front end rising from the portion is designed to be 30 ° or more and 70 ° or less, the vehicle can run even in a place where the overlap of the seams of the oil pan 31 is overlapped. Note that the length in the front-rear direction of the bottom plate 24a is set so that the contact angle γ formed between the bottom plate 24a and the oil pan 31 in the traveling direction of the step 28 is 30 ° or more and 60 ° or less.

  Thus, the conventional passenger conveyor cleaning machine 23 can be easily obtained by attaching the cleaning machine 23 to the front wheel shaft of the step 28 of the step chain 27 connected endlessly, and traveling the cleaning machine 23 together with the passenger conveyor. The dust accumulated on the oil pan 31 can be scraped. In addition, the front end 25b of the dust scraper 25 having a longitudinal cross-sectional shape is a curved surface having a radius larger than the thickness of the oil pan 31, or a rising angle β with respect to the oil pan 31 at the front of the front rising from the front end in contact with the oil pan 31 is 30. By making the angle between 70 ° and 70 °, it is possible to travel even where the seams of the oil pan 31 overlap.

  Further, as another conventional example, a guide rail that supports both ends of the cleaning body of the cleaning device is installed on the floor surface of the lower machine room of the passenger conveyor, and a cleaning body that is located in the back of the machine room is provided via an operation handle. A passenger conveyor cleaning device has been proposed in which dust accumulated on the floor surface of a passenger conveyor machine room is scraped out by being pulled out to the front of the machine room (see, for example, Patent Document 2).

FIG. 15 is a perspective view showing the configuration of such a passenger conveyor cleaning device, and FIG. 16 is a side view showing a use state of the cleaning device. As shown in FIGS. 15 and 16, the passenger conveyor cleaning device 32 is installed on the floor surface of the lower machine room 33, and is connected to each other by two connecting plates 34 and has a U-shaped cross-sectional shape. A pair of guide rails 35a and 35b, a pair of guides 36a and 36b movably engaged with the guide rails 35a and 35b, a cleaning body 37 supported at both ends by the guides 36a and 36b, and the cleaning body The flexible wiper blade 38 is attached to the cleaning member 37 with a screw, and the operation handle 39 has one end fixed to the cleaning body 37. When the passenger conveyor cleaning device 32 is used, the cleaning body 37 is positioned on the connecting plate 34 side of the lower machine chamber 33 and the cleaning body 37 is moved to the lower machine chamber 33 via the operation handle 39. Pull it out toward the connecting plate on the front side. As a result, dust can be easily scraped without removing the steps attached to the step chains of the passenger conveyor.
Japanese Patent Laid-Open No. 9-183854 JP-A-2005-3300047

  However, the conventional cleaning machine 23 disclosed in Patent Document 1 has a shape provided at the front end portion 25b of the vertical cross section so that it can run even in a place where the overlap of the seams of the oil pan 31 overlaps. When the dust containing the oil on the oil pan 31 is hardened, the dust gets on the hardened dust, resulting in a problem that the dust is missed and the cleaning ability is lowered. Moreover, when it is going to apply such a cleaning machine 23 to a passenger conveyor provided with the cleaning apparatus 32 disclosed by patent document 2, as shown in FIG. 16, the connection board 34 is U-shaped of guide rail 35a, 35b. The dust scraper 25 enters the gap between the connecting plate 34 and the oil pan 31, and the cleaning machine 23 and the oil pan 31 are lifted from the oil pan 31 by the thickness of the guide rails 35 a and 35 b. There is a risk of damage to the cleaning device 32 or passenger conveyor. For this reason, the cleaning machine 23 cannot be used for a passenger conveyor provided with this type of cleaning device 32, and there is a problem that versatility is low.

  The present invention has been made in view of the actual situation of the prior art, and an object thereof is to provide an oil pan cleaning machine for passenger conveyors having high cleaning ability and high versatility.

  In order to achieve this object, an oil pan cleaning machine for passenger conveyors according to the present invention travels around an endless conveyor in which steps are attached to end chains connected endlessly, thereby allowing passengers on the steps. A passenger conveyor oil pan cleaning machine for cleaning dust accumulated on an oil pan extending along a lower side of a passenger conveyor that transports a plate-like intermediate body, A support member provided movably; a U-shaped elastic plate provided at the other end of the intermediate body; and standing pieces provided at both side ends of a lower end portion of the elastic plate. A member is attached to the step, and the intermediate body extends in the advancing direction of the step, and the lower end portion of the elastic plate is slidably contacted with the oil pan to run. .

  In the oil pan cleaning machine for passenger conveyors configured as described above, even when the oil-containing dust is hardened by sliding the elastic plate having a U-shape on the oil pan, the dust is not dropped. Dust can be scraped without being generated. In addition, the U-shaped elastic plate bends when it comes into contact with the step on the oil pan, and after returning over the step on the oil pan, it can return to its original shape. You can get over the level difference that occurs when you overlap. As a result, oil pan cleaning can be performed smoothly while preventing damage to the oil pan cleaner for the passenger conveyor, the oil pan, or the passenger conveyor. Moreover, even when the passenger conveyor is equipped with a machine room floor surface cleaning device or the like, the upright pieces provided on both side ends of the lower end of the elastic plate should be in contact with the connecting plate of the machine room floor surface cleaning device or the like. As a result, the elastic plate is bent and can overcome the gap. Therefore, even when this kind of cleaning device etc. are provided in a passenger conveyor, it can be used.

  Moreover, the oil pan cleaning machine for passenger conveyors according to the present invention is characterized in that the standing piece is a folded portion formed by folding both side ends of the lower end portion of the elastic body.

  In the oil pan cleaning machine for passenger conveyors configured as described above, the both ends of the lower end of the elastic body can be bent and the standing pieces can be easily provided. Compared with the provision of the piece, it is possible to suppress damage such as detachment of the standing piece due to an impact received when the step is overcome.

  Moreover, the oil pan cleaner for passenger conveyors according to the present invention is characterized in that the support member is set to half or less of the width of the step so that a plurality of support members can be attached to one step.

  In the oil pan cleaning machine for passenger conveyors configured in this way, by attaching a plurality of oil pan cleaning machines to a single step, the follow-up performance is further improved against different undulations caused by dust on the oil pan. , You can reduce the trash spillage.

  Moreover, the oil pan cleaning machine for passenger conveyors according to the present invention is characterized in that the elastic plate is provided with an extending portion that projects outward from the intermediate body.

  In the oil pan cleaning machine for passenger conveyors configured in this way, the elastic plate is provided with an extending portion that protrudes outward from the intermediate body, and elastically moves on the oil pan below the guide rail that guides the front wheel of the step in the traveling direction. By bringing the extending portion of the plate into sliding contact, dust below the guide rail can also be cleaned.

  The oil pan cleaner for passenger conveyors of the present invention travels while the lower end of the elastic plate is in sliding contact with the oil pan, so that even when the oil-containing dust has hardened, the dust is not dropped out. Dust can be scraped and cleaning ability can be enhanced. In addition, the U-shaped elastic plate is bent at the step where the seam on the oil pan overlaps, and the step can be overcome. Moreover, the upright pieces provided at both ends of the lower end of the elastic plate prevent the elastic body from entering the gap even when the passenger conveyor is provided with a machine room floor surface cleaning device or the like. You can get over the gap. As a result, the passenger conveyor can be used even when this type of cleaning device is provided, and versatility can be improved.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of an entire passenger conveyor to which an oil pan cleaner of the present invention is applied, and FIG. 2 is an upper machine room of the passenger conveyor shown in FIG. FIG. 3 is an explanatory view, FIG. 3 is a perspective view showing the configuration of the oil pan cleaning machine according to the first embodiment of the present invention, and FIG. 4 is a state when the oil pan cleaning machine travels a step at a reverse seam portion of the oil pan. FIG. 5 is a side view showing another mounting state of the oil pan cleaning machine.

  As shown in FIG. 1, a passenger conveyor 1 includes an endlessly connected step chain 2, a plurality of steps 3 connected to the step chain 2, a balustrade 4 provided on the upper side of the step chain 2, and steps An oil pan 5 extending along the lower side of the chain 2, a terminal gear 6 for circulating the step 3 by moving the step chain 2, and an entrance / exit provided at each of the upper and lower entrances / exits A floor plate 7, an upper machine room 8H provided below the upper entrance and exit, and a lower machine room 8L provided below the lower entrance and exit are provided. As shown in FIG. 2, the step 3 includes a step frame (step frame) 3A, a step body (step tread) 3B, a riser 3C, a front wheel 3D connected to the step chain 2, and a rear wheel 3E. The terminal gear 6 reverses the traveling direction in the upper machine room 8H and the lower machine room 8L below the upper and lower entrance floor boards 7 and circulates. A support member of an oil pan cleaning machine, which will be described later, is attached to the rear upper surface of the step body 3B of the step 3 of the passenger conveyor 1.

  As shown in FIG. 3, the oil pan cleaning machine 9 according to the first embodiment of the present invention includes a plate-like intermediate body 10, a support member 11 that is rotatably provided at one end of the intermediate body 10, An obtuse square-shaped elastic plate 12 provided at the other end of the intermediate body 10 and folded portions 13 provided at both side ends of the lower end portion of the elastic plate 12 are provided. Here, the elastic plate 12 is made of a plastic or the like having a small thickness, sufficient hardness to peel off dust stuck to the upper surface of the oil pan, and elasticity that does not break due to bending. The folded portion 13 constitutes an upright piece, and the folded portion 13 is integrally formed by folding both side ends of the lower end portion of the elastic plate 12 into a triangular shape.

  When using the oil pan cleaner 9, the support member 11 of the oil pan cleaner 9 is attached to the upper rear portion of the step 3 </ b> B of the step 3 in the lower machine room 8 </ b> L, and the oil pan cleaning is performed by moving the step 3 down. The step 3 to which the machine 9 is attached is moved to the position of the horizontal oil pan 5H in the upper machine room 8H. At this time, since the intermediate body 10 of the oil pan cleaning machine 9 is pivotally supported by the support member 11, the intermediate body 10 moves over the dust W on the oil pan 5 and does not collect dust. Then, when the step 3 is reversely operated from the upper oil pan horizontal portion 5H and the oil pan cleaner 9 is slidably running on the oil pan 5, the elastic plate 12 scrapes the dust W on the oil pan 5 while lowering the lower oil pan. It moves in the horizontal part 5L direction.

  Here, as shown in FIG. 4, when the seam overlaps on the oil pan 5 and there is a step, the elastic plate 12 bends when the lower end of the traveling elastic plate 12 comes into contact with the step. Since it can return to the original shape again after getting over, the oil pan 5 can be smoothly cleaned while preventing damage to the oil pan cleaner 9, the oil pan 5, the passenger conveyor 1, and the like. Even when the dust W is left behind, the dust 3 on the oil pan 5 is collected on the lower oil pan 5L by reciprocating the step 3 to which the oil pan cleaner 9 is attached between the upper and lower entrances. be able to. Finally, the dust W collected by the operator is collected in the lower machine room 8L.

  The case where the oil pan cleaner 9 is attached to the upper rear portion of the step body 3B of the step 3 without removing the step has been described above. However, as shown in FIG. 5, the support member 11 includes at least one step 3 or more. It can be detachably attached to the step frame 3A of the other step 3 that is in contact with the space formed by removing. Thereby, when the space | interval h3 of the stepping body 3B and the oil pan 5 is small, it can suppress that the angle (alpha) which the oil pan 5 and the oil pan cleaning machine 9 make becomes an acute angle, and can prevent the cleaning capability fall. In addition, by collecting the dust W in a space where at least one step 3 is removed, the contamination of the step 3 due to the dust W collected can be minimized.

  6 is a schematic configuration diagram of another entire passenger conveyor to which the oil pan cleaning machine according to the first embodiment described above is applied, and FIG. 7 is a state when the oil pan cleaning machine travels through the gap of the passenger conveyor. FIG.

  As shown in FIG. 6, this passenger conveyor 14 is provided with a cleaning device 15 in each of the upper machine room 8H and the lower machine room 8L. These cleaning devices 15 are basically the same as those described above with reference to FIGS. 15 and 16, along the horizontal oil pan 5H of the upper machine chamber 8H and the horizontal oil pan 5L of the lower machine chamber 8L. A pair of guide rails 16 each having a U-shaped cross-sectional shape are installed with a space left and right. As shown in FIG. 7, since the connecting plate 17 is provided on the inner ends of the left and right guide rails 16 so as to connect them to each other, the height h1 of the oil pan 5 and the connecting plate 17 is increased by the thickness of the guide rails 16. The gap S is generated. Considering this, the height h2 of the tip of the folded portion 13 described above is designed to be higher than the height h1 of the gap S.

  When the oil pan cleaner 9 travels through the gap S generated in the passenger conveyor 14, the tip of the folded portion 13 of the elastic plate 12 contacts the side surface of the connecting plate 17 and does not enter below the connecting plate 17. The U-shaped elastic plate 12 is bent with the tip of the portion 13 as a fulcrum, and the connection plate 17 can be overcome. Therefore, the oil pan cleaner 9 can also be used in the passenger conveyor 14.

  In the above-described first embodiment, the standing piece is a folded portion integrally formed by bending both side ends of the lower end portion of the elastic plate 12, but the standing piece separate from the elastic plate 12 is attached later by welding or the like. May be. Further, as long as the height h2 of the tip of the standing piece is higher than the height h1 of the gap S, the shape of the standing piece may not be triangular.

  FIG. 8 is a perspective view showing a configuration of an oil pan cleaning machine according to the second embodiment of the present invention.

  As shown in FIG. 8, the oil pan cleaning machine 18 according to the second embodiment of the present invention uses the width of the elastic plate 12 provided with the support member 11, the intermediate body 10, and the folded portion 13 as the width of the step 3. Two oil pan cleaners 18 are provided for one step 3 with the size set to half or less. Further, a plate-like weight 19 is provided in the center of the intermediate body 10.

  This oil pan cleaning machine 18 is used when there are irregularities on the oil pan 5 due to manufacturing / mounting errors, or when hardened dust W having different sizes in the width direction of the oil pan 5 exists. Each of the two oil pan cleaners 18 rakes up the dust W independently, so that the followability can be increased and the dust W can be omitted. Also, if there is a large amount of dust W or if there is an obstacle on the oil pan 5 for some reason, even if one of the oil pan cleaners 18 is damaged, the damaged oil pan is cleaned. The machine 18 can be replaced. Moreover, since the wedge effect of each oil pan cleaner 18 can be increased by changing the plate-like weight 19 at the center of each intermediate body 10 to a heavy one, the cleaning ability can be enhanced.

  In the second embodiment, the case where two oil pan cleaning machines 18 are attached to one step 3 has been described. However, three or more oil pan cleaning machines 18 are attached to one step 3. Also good.

  FIG. 9 is a perspective view showing a configuration of an oil pan cleaning machine according to the third embodiment of the present invention, and FIG. 10 is a cross-sectional front view showing a state in use of the oil pan cleaning machine according to the third embodiment of the present invention. FIG.

  As shown in FIG. 9, the oil pan cleaning machine 20 according to the third embodiment of the present invention is provided with an extending portion 12 a protruding outward from the intermediate body 10 on the elastic plate 12, and this extending portion. A folded portion 13 is formed at 12a.

  Here, as shown in FIG. 10, there is a rail bracket 22 for the guide rail 21 that guides the front wheel 3D under the front wheel 3D of the step 3 generally connected to the step chain 2 of the passenger conveyors 1 and 14, Cleaning on the oil pan 5 below the rail bracket 22 cannot be performed. Therefore, the oil pan cleaning machine 18 having the elastic plate 12 provided with the extending portion 12a protruding outward from the intermediate body 10 slides on the oil pan 5 so that the oil pan 5 on the lower side of the rail bracket 22 is moved over the oil pan 5. Can be cleaned. At this time, the elastic plate 12 has a height that enters the space between the rail bracket 22 and the oil pan 5.

  FIG. 11 is a perspective view showing a configuration of an oil pan cleaning machine according to the fourth embodiment of the present invention.

  In the above third embodiment, only one oil pan cleaning machine 20 is attached to one step 3, but two oil pan cleaning machines 20 are provided to one step 3 as shown in FIG. You may attach and you may attach 3 or more. However, in that case, the extension part 12a may be provided in the elastic plate 12 between the adjacent oil pan cleaning machines 20, or may not be provided. Moreover, you may provide another member in the elastic board 12 by welding etc. as the extension part 12a of the elastic board 12. FIG.

It is a schematic block diagram of the whole passenger conveyor to which the oil pan cleaning machine of this invention is applied. It is explanatory drawing of the upper machine room of the passenger conveyor shown in FIG. It is a perspective view which shows the structure of the oil pan cleaning machine which concerns on 1st Embodiment of this invention. It is a side view which shows a state when this oil pan cleaning machine drive | works the level | step difference of the reverse direction seam location of an oil pan. It is a side view which shows the other attachment state of this oil pan cleaning machine. It is a schematic block diagram of the whole other passenger conveyor to which the oil pan cleaning machine which concerns on the example of 1st Embodiment of this invention is applied. It is a side view which shows a state when this oil pan cleaning machine drive | works the clearance gap of this passenger conveyor. It is a perspective view which shows the structure of the oil pan cleaning machine which concerns on the 2nd Example of this invention. It is a perspective view which shows the structure of the oil pan cleaning machine which concerns on the example of 3rd Embodiment of this invention. It is a cross-sectional front view which shows the state at the time of use of the oil pan cleaning machine which concerns on the example of 3rd Embodiment of this invention. It is a perspective view which shows the structure of the oil pan cleaning machine which concerns on the example of 4th Embodiment of this invention. It is a perspective view which shows the structure of the conventional passenger conveyor cleaning machine. It is a side view which shows the use condition of this cleaning machine. It is a side view which shows a state when this cleaning machine carries out sliding running on the reverse joint place on an oil pan. It is a perspective view which shows the structure of the cleaning apparatus of a passenger conveyor. It is a side view which shows the use condition of this cleaning apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Passenger conveyor 2 Step chain 3 Step 3A Step frame 3B Step body 3C Riser 3D Front wheel 3E Rear wheel 4 Railing 5 Oil pan 6 Terminal gear 7 Entrance floor board 8H Upper machine room 8L Lower machine room 9 Oil pan cleaning machine 10 Intermediate body 11 Support member 12 Elastic plate 12a Extension portion 13 Folding portion 14 Other passenger conveyor 15 Cleaning device 16 Guide rail 17 Connecting plate 18 Oil pan cleaner 19 Weight 20 Oil pan cleaner 21 Guide rail 22 Rail bracket

Claims (4)

  Deposited on the oil pan extended along the lower side of the passenger conveyor for transporting passengers on the steps by running around an endless conveyor with steps attached to the end chains connected endlessly In an oil pan cleaning machine for passenger conveyors for cleaning dust, a plate-shaped intermediate body, a support member rotatably provided at one end of the intermediate body, and the other end of the intermediate body And an upright piece provided on each side end of the lower end of the elastic plate, the support member is attached to the step, and the intermediate body extends in the direction of travel of the step. An oil pan cleaning machine for a passenger conveyor, wherein the oil pan is made to travel by sliding the lower end portion of the elastic plate against the oil pan.   2. The oil pan cleaner for passenger conveyor according to claim 1, wherein the upright piece is a folded portion formed by folding both side ends of the lower end portion of the elastic body.   2. The oil pan cleaning machine for passenger conveyor according to claim 1, wherein the support member is set to a half or less of the width of the step, and a plurality of the support members can be attached to one step. Oil pan cleaning machine for passenger conveyor.   The oil pan cleaning machine for passenger conveyors according to claim 1, wherein the elastic plate is provided with an extending portion protruding outward from the intermediate body.

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