JP3403567B2 - Passenger conveyor oil pan cleaning system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cleaning dust accumulated on an oil receiving plate extending along a lower side of a passenger conveyor such as an escalator or a moving road. Belongs to the technical field of an oil receiving plate cleaning device for a passenger conveyor. [0002] Conventionally, escalators have often been provided for visitor services in department stores and the like, but recently, along with the development of transportation systems, escalators have also been provided for the service of raising and lowering passengers to station platforms. Many have been installed. As described above, in the escalator used by a large number of customers, in particular, dust dropped from clothes of a person or dust carried by the wind enters the inside of the escalator from gaps in the steps, etc., and receives dust and machine oil. For a long time, it accumulates on the oil receiving plate extending below the endless conveyor, and a large amount of accumulated dust may cause a failure of the escalator, or may be ignited by some kind of spark, heat generation, or residual fire of tossed tobacco. There was a risk of fire. Therefore, conventionally, about half of the endless conveyors have screwed steps removed, and an operator has used a broom or a brush to sweep off dust accumulated on the oil receiving plate to clean them. The above cleaning work in the narrow space inside the escalator becomes dusty and greasy, so not only increases the psychological pain of workers, but also removes heavy steps,
After that, the installation work is very hard work, 2 people ~
Several workers spent half a day to one day performing this task. In order to alleviate the heavy burden on the cleaning work of such workers, Japanese Patent Laid-Open Publication No. Sho 56-3274 discloses a method in which a curved portion provided at a base end behind a front wheel shaft of a step of an escalator is brought into contact with and held down. The two support arms are swingably attached by applying metal fittings and fixed with bolts, and the support arms are moved to scrape dust accumulated on the oil receiving plate by a rubber member provided at the tip thereof. The disclosed invention is disclosed. [0005] In the invention disclosed in this publication, the dust contains an oil component, and especially when the oil has hardened, the dust dives under the rubber member. Since the oil comes off, dust remains on the oil receiving plate without being completely wiped. In the end, the remaining dust has to be removed by manual cleaning work, and a very effective cleaning effect cannot be exerted. An object of the present invention is to solve the problem in the prior art and to provide an oil receiving plate cleaning device for a passenger conveyor that can reliably exert a cleaning effect irrespective of the state of dust and that can be easily attached and removed. And SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a rigid bottom plate, a pair of side plates erected at least on a side end of the bottom plate, A rear plate erected to partition the rear end, and an inverted L-shape mounted on the rear plate and mounted on the front wheel shaft for mounting the front side of the step on the step chain so that the rear side can be pivotally mounted on the rear side. A cleaning device main body comprising a bracket; and a cleaning device main body provided at a tip portion of the bottom plate, rotatable in a direction parallel to the bottom plate to receive pressure when pressed against an oil receiving plate surface, and The cleaning device body is urged in a direction opposite to the direction in which the cleaning device main body is urged in a direction opposite to the direction in which the bottom plate is attached, and is attached to the front wheel axle, and the rear plate is fixed by bolts. With a pedestal rotatably supported on the front wheel axle The oil receiving plate is rotated by rotating the passenger conveyor by half a turn so that the end of the oil receiving plate cleaning device of the passenger conveyor attached to the endless conveyor slides on the oil receiving plate surface. The dust accumulated on the top can be raked up. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The mounting body of the oil receiving plate cleaning apparatus for a passenger conveyor according to the present invention is formed of a rigid body, and has an appropriate size between its front end and the surface of the oil receiving plate. Since it is necessary to generate a sliding friction force, a metal plate having a large specific gravity, such as a steel plate, an iron plate, and a tin plate, is suitable as a material. The formation of the side plate erected on the bottom plate is performed by bending, welding, soldering, or the like of the plate material. The rear plate partitioning the rear end may be arbitrarily formed using a similar material. The oil receiving plate cleaning device of the passenger conveyor is always stored in a storage, etc., and when the cleaning work is performed, it is carried to the installation location of the passenger conveyor,
Although it is better that the weight itself is not too heavy, a certain amount of its own weight is required in order to generate a sliding friction force necessary for effectively operating the dust collecting function at the tip. Therefore, in order to satisfy both of these requirements, it is preferable that the weight on the front end side is heavy and the weight on the rear end side is light. At the leading edge of the oil receiving plate cleaning device of the passenger conveyor, there is provided a flat scraper made of a band-shaped steel plate or the like rotatably attached to the leading end with a plurality of hinges or the like in parallel with the leading edge. . The scraper is urged toward the oil receiving plate surface by a spring or the like, but is regulated so as not to rotate more than a direction parallel to the bottom plate. The length of the bottom plate in the front-rear direction is such that the rear end of the oil receiving plate cleaning device of the passenger conveyor is rotatably attached to the front wheel axle to collect and clean dust accumulated on the oil receiving plate for cleaning. When performing, the length is set such that the bottom plate whose tip is oriented in the running direction is supported in a state of being inclined with respect to the oil receiving plate. Hereinafter, an embodiment of the present invention in which the present invention is applied to an oil receiving plate cleaning device for an escalator will be described in detail with reference to the drawings. FIG. 1 is a perspective view of an escalator according to an embodiment of the present invention at an installation position of an oil receiving plate cleaning device, and FIG.
Is a front view thereof. In these figures, 1 is an escalator, 1a is an upper machine room, 2 is a step connected to a step chain connected endlessly, 3 is a step 2 of an endless conveyor.
An oil receiving plate 4 is provided along the lower part of the reversing travel path, which runs in a state where the vehicle runs upside down. A pair of guide rails 4 guides a front wheel (described later) of the step 2 in a traveling direction. Front wheels 6 rotatably attached to both ends, 6 is a front wheel axle of one step 2 connected endlessly to the escalator 1, 7 is a pair of receiving stands rotatably supported by the front wheel axle 6,
Reference numeral 10 denotes a cleaning device main body which is formed of a metal plate such as a steel plate and is swingably attached to the front wheel shaft 6. Reference numeral 10a denotes a bottom plate of the cleaning device body 10;
b, 10c are a pair of side plates erected on the side end of the bottom plate 10a, 10d is a rear plate that partitions the rear end of the cleaning device main body 10, 1
0e is an intermediate plate that reinforces the strength of the bottom plate 10a erected at the center of the bottom plate 10a in parallel with the side plates 10b and 10c.
f, 10g are bottom plate 10a, side plates 10b, 10c, rear plate 1
0d and a pair of dust storage sections partitioned by an intermediate plate 10e, 10h is an inverted L-shaped L-shaped bracket attached to the center of the back of the rear plate 10d, and 10i is a screw for screwing the rear plate 10d to a pair of receiving stands 7. The cleaning device main body 10 has a substantially "dust removing" shape as a whole. Reference numeral 11 denotes a bottom plate 1 at the tip of the cleaning device main body 10.
The scraper 12 is rotatably mounted on the endless conveyor side from a direction parallel to the bottom plate 10a so as to partially overlap with the bottom plate 10a and elastically contacts the oil receiving plate 3 by a spring (not shown). There are a plurality of hinges for rotatably connecting the tip end of the main body 10 and the scraper 11. The scraper 11 is longer than the width of the cleaning device main body 10 so that the dust below the guide rail 4 can be cleaned.
The length is set to reach the lower part of the pair of guide rails 4. As described above, the step 2 is connected to the step chain in a large number, and the front wheel shaft 6 and the front wheel 7 are also connected to the step chain. However, for simplicity, in FIG.
Only those with attached are shown. Further, other components such as a drive mechanism of the escalator 1 not shown are omitted because they are not different from the conventional example. Next, the operation of this embodiment will be described.
FIG. 3 is a flowchart showing the operation procedure of the oil receiving plate cleaning operation of the escalator. The details of the operation of cleaning the oil receiving plate of the escalator will be described with reference to FIG. First, after stopping the operation of the escalator 1, the worker installs a safety fence so that ordinary persons other than the worker do not enter the upper and lower entrances (S1). Next, the upper machine room 1 of the escalator 1
After removing the cover plate covering the upper part of the endless conveyor 1a, when the escalator 1 enters the inside of the upper machine room 1a and the ascending operation of the escalator 1 is performed, the three steps 2 are removed from the vicinity of the upper turning portion of the endless conveyor (S2) ). Thereafter, the front wheel shaft 6 located at the center of the endless conveyor from which the steps 2 have been removed is moved to a position immediately downstream of the upper turning portion. Then, the cleaning device main body 10 is carried into the upper machine room 1a, and the leading end of the cleaning device main body 10 is drawn under the upper reversing portion in the direction in which the endless conveyor reversely travels. The rear end side of the cleaning device 10 is lifted while the
The hook formed by the L-shaped bracket 10h is hooked on the front wheel shaft 6. Next, the cleaning device main body 10 is pulled toward the front wheel shaft 6, and the rear plate 10d is brought into close contact with the receiving stand 7, and then the rear plate 10d is fixed to the receiving stand 7 by screwing a pair of bolts 10i. The cleaning device main body 10 is designed so that heavier weight is applied to the distal end side. In addition, the own weight of the cleaning device main body 10 is converted into a rotational moment about the front wheel shaft 6, so that the cleaning device main body 10 is rotated. A downward stress that presses against the surface of the oil receiving plate 3 acts on the tip of the oil receiving plate 3, and the scraper 11 at the distal end of the bottom plate 10a rotates in the clockwise direction along the surface of the oil receiving plate 3 due to the reaction, so that the entire bottom surface of the scraper 11 It is pressed against the surface of the oil receiving plate 3. In this manner, when the bottom plate 10a of the cleaning device main body 10 is tilted in the traveling direction and the front end side is supported by the oil receiving plate 3 of the reversing portion and is rotatably attached to the front wheel shaft 6, the mounting operation of the cleaning device main body 10 is performed. Is completed (S3). Thereafter, the operator operates the manual operation button provided in the upper machine room 1a to operate the escalator 1 at a low speed (S4). Thereby, the cleaning device main body 10
Makes frictional running on the oil receiving plate 3 from the upper portion to the oblique portion and the lower portion, while the scraper 11 attached to the tip portion is in contact with the surface of the oil receiving plate 3. Then, in this process, the scraper 11 slides on the oil receiving plate 3 while receiving a frictional force depending on the weight and inclination of the cleaning device main body 10, and scrapes dust accumulated on the oil receiving plate 3. As described above, since the scraper 11 slides on the oil receiving plate 3 while receiving an appropriate sliding frictional force, even if the dust is hardened by a large amount of dust or leaked oil, it must be scraped up. Can be. Further, since the leading edge of the scraper 11 that is in sliding contact with the oil receiving plate surface 3 presses the oil receiving plate surface 3 with an almost constant pressure, the pressing pressure of the distal end edge of the scraper 11 that is kept almost constant is always constant. It can demonstrate the ability to scrape dust. When it is confirmed that the cleaning device main body 10 has reached the lower machine room, the operator operates the manual operation button to stop the escalator 1 and removes the cover plate of the lower machine room (S5). Then, the operator enters the lower machine room, loosens and removes the bolt 10i, and removes the cleaning device body 10 from the front wheel shaft 6 (S6). Like the mounting operation of the cleaning device main body 10, the rear end side of the cleaning device main body 10 is supported on the front wheel shaft 6 by the L-shaped bracket 10h during the removal operation, so that the bolt 10i can be removed from the receiving stand 7 as well. It can be done easily by one person. Then, the cleaning device body 1
The dust collected in step 0 and the surrounding dust are collected using a broom, a brush or the like, packed in a dust collection bag or the like, and discarded (S7). Next, the worker attaches a cover plate of the lower machine room to cover the upper portion of the lower machine room, and then operates the manual operation button to operate the escalator 1 at a low speed to raise the front wheel axle from which the steps 2 are removed. 6 is moved to the position of the upper machine room 1a (S8). Then, the three steps 2 removed at the beginning are attached to the front wheel axle 6 (S9). Next, a cover plate for covering the upper part of the upper machine room 1a is attached to cover the upper part of the upper machine room 1a (S10), and then the safety fences provided at the upper and lower entrances are removed (S11). As described above, the oil receiving plate 3 according to the present embodiment
The work of cleaning the dust accumulated on the top is the work of removing and installing the steps 2, which account for the majority of the preparation work and post-processing work, and requires only three work steps. , It is only necessary to make a round, so that the labor of the operator can be greatly reduced, and the working time can be reduced to about half that of the manual operation. In addition, since the L-shaped bracket 10h is provided on the rear end side of the cleaning device main body 10, the operation of mounting and removing the cleaning device main body 10 to and from the front wheel shaft 6 can be easily and safely performed by one worker. be able to. As described above, according to the present invention, the rigid bottom plate, the side plates and the rear plates erected at the side end and the rear end of the bottom plate, respectively, and attached to the rear plate. A cleaning device main body comprising an inverted L-shaped bracket for rotatably mounting the rear side on the front wheel axle; and a strip-shaped rotatable, parallel to the front edge of the bottom plate, provided at the front end of the bottom plate. The cleaning device body is provided with a scraper and a receiving stand that is attached to a front wheel shaft and the rear plate is fixed by bolts so that the cleaning device main body is rotatably supported by the front wheel shaft. By moving the tip of the oil receiving plate cleaning device attached to the endless conveyor while sliding it against the oil receiving plate surface, dust accumulated on the oil receiving plate can be scraped and leaked. Apply to the oil that has fallen Even solidified dust adhered to the surface of the oil receiving plate can be reliably and safely cleaned, and can be easily attached and detached.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an installation position of an oil receiving plate cleaning device according to an embodiment of the present invention. FIG. 2 is a front view thereof. FIG. Flow chart showing work procedure [Description of reference numerals] 1 Escalator 1a Upper machine room 2 Step 3 Oil receiving plate 4 Guide rail 5 Front wheel 6 Front wheel axle 7 Receiving stand 10 Cleaning device main body 10a Bottom plates 10b, 10c Side plate 10d Rear plate 10e Intermediate plate 10f , 10g Dust storage unit 10h L-shaped bracket 10i Bolt 11 Scraper 12 Hinge

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kazuyuki Yamane 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Within Hitachi Building System Service Co., Ltd. (56) References JP-A-5-319768 (JP, A) JP-A Heisei 5-338983 (JP, A) Patent 3128490 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66B 31/00

Claims (1)

(57) [Claim 1] An endless conveyor having a step attached to an endlessly connected step chain orbitally runs under the passenger conveyor for transporting a passenger on the step. In a passenger conveyor oil receiving plate cleaning device for cleaning dust accumulated on an oil receiving plate extending along a side, a rigid bottom plate and at least a side end of the bottom plate are erected in pairs. Side plate, a rear plate erected so as to partition the rear end of the bottom plate, and a rear side rotatable on a front wheel shaft attached to the rear plate for attaching the front side of the step to the step chain. A cleaning device main body comprising an inverted L-shaped bracket for mounting on an oil receiving plate; and a rotating device provided at a tip end of the bottom plate and receiving pressure when pressed against the oil receiving plate surface from a direction parallel to the bottom plate. It is movable and receives the pressure Is urged in the opposite direction, and is attached to the front wheel axle with a strip-shaped scraper parallel to the leading edge of the bottom plate, and the rear plate is fixed by bolts, whereby the cleaning device main body is turned around the front wheel axle. A pedestal movably supported, the passenger conveyor being rotated by half a turn, and a tip of an oil receiving plate cleaning device of the passenger conveyor attached to the endless conveyor being slidably contacted with the oil receiving plate surface. An oil receiving plate cleaning device for a passenger conveyor, characterized in that dust traveling on the oil receiving plate can be raked by running while traveling.