JPH09194174A - Cleaning device for oil receiving plate of passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rake dust accumulated over an oil receiving plate by letting the tip end of the cleaning device for the oil receiving plate of a passenger conveyor, be brought into contact with the surface of the oil receiving plate while being slid over there where the aforesaid plate is mounted to an endless conveyor while the passenger conveyor is revolved by one half of its circumference. SOLUTION: A cleaning device main body 10 in a dust pan shape provided with a L shaped bracket 10h at its rear part, is fixed to bearers 7 with bolts 10i at the rear end of the cleaning device main body 10 in a state that the L shaped bracket 10h is hung over the front wheel shaft 6 of an escalator, and by letting the escalator be driven at the low speed in a state that the cleaning device main body 10 is rotatably supported by the front wheel shaft 6, a scraper 11 which is rotatably mounted to the tip end part of the cleaning device main body 10, is brought into contact with an oil receiving plate 3 while being slid over there, so that dust accumulated over the oil receiving plate 3 is thereby raked so as to be collected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil receiving plate cleaning device for a passenger conveyor for cleaning dust accumulated on an oil receiving plate extending along the lower side of the passenger conveyor such as an escalator or a moving road. Belong to the technical field.

[0002]

2. Description of the Related Art In the past, escalators were often provided at a department store for visitor services, but recently, many have been installed for the purpose of raising and lowering passengers to the platform at stations with the development of transportation. It became so. As described above, particularly in an escalator used by a large number of customers, dust dropped from clothes of a person or dust carried by wind enters the inside of the escalator through a step gap or the like, and is a member for receiving dust or mechanical oil. As a result, a large amount of dust is accumulated on the oil receiving plate that is extended below the endless conveyor for a long period of time, and a large amount of dust causes a failure of the escalator, or it is ignited by some sparks, heat generation, or the afterglow of thrown tobacco. There was a risk of fire.

Therefore, conventionally, about half of the steps of the endless conveyor, which are screwed to each other, are removed, and an operator cleans the dust accumulated on the oil receiving plate with a broom or a brush. The above cleaning work in the narrow space inside the escalator will be dusty and oily, which not only increases the psychological distress of the worker, but also removes the heavy steps.
After that, the work of mounting is a heavy labor,
Several workers spent half a day to a day doing this work.

In order to alleviate the heavy burden of the cleaning work of the worker, Japanese Patent Laid-Open No. 56-3274 discloses that a curved portion provided at the rear end of the front wheel shaft of the step of the escalator is brought into contact with and pressed. By attaching metal fittings and fixing them with bolts, the two support arms are swingably attached, and these support arms are moved so that the rubber member provided at the tip of the support arm scrapes off dust accumulated on the oil receiving plate. The disclosed invention is disclosed.

[0005]

SUMMARY OF THE INVENTION In the invention disclosed in this publication, if the dust contains an oil component and the oil is hardened, the dust will pass under the rubber member. Therefore, dust cannot be completely wiped off and remains on the oil receiving plate. After all, the remaining dust could only be removed by manual cleaning work, and the effective cleaning effect could not be exhibited. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems in the prior art and to provide an oil receiving plate cleaning device for a passenger conveyor that can reliably exert a cleaning effect regardless of the state of dust, and that is easy to install and remove. And

[0006]

In order to solve the above-mentioned problems, the present invention provides a rigid bottom plate, side plates erected at least in pairs at the side ends of the bottom plate, and a rear end of the bottom plate. From a rear plate that is erected so as to partition, and an inverted L-shaped bracket that is attached to the rear plate and that rotatably mounts the rear side on a front wheel shaft for attaching the front side of the step to the step chain. A cleaning device main body, and a direction that is provided at the tip of the bottom plate and is rotatable in a direction that receives pressure when pressed against the oil receiving plate surface from a direction that is parallel to the bottom plate and that receives the pressure. And a belt-shaped scraper parallel to the tip edge of the bottom plate and attached to the front wheel shaft, and the rear plate is fixed by bolts so that the cleaning device main body is attached to the front wheel shaft. And a pedestal supported rotatably. Accumulated on the oil receiving plate by causing the end of the oil receiving plate cleaning device of the passenger conveyor attached to the endless conveyor to rotate while making the conveyor circulate a half turn while sliding on the oil receiving plate surface. It is designed to collect dust.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The mounting main body of the oil receiving plate cleaning device for a passenger conveyor according to the present invention is formed of a rigid body, and a sliding frictional force of an appropriate size is provided between the tip portion and the oil receiving plate surface. Therefore, a metal plate having a large specific gravity, such as a steel plate, an iron plate, and a tin plate, is suitable as the material. The side plate that is erected on the bottom plate is formed by bending the plate material, welding, and solder bonding. The rear plate for partitioning the rear end may be arbitrarily formed by using the same material. Since the oil receiving plate cleaning device for the passenger conveyor is always stored in a storage room or the like, and is carried into the installation location of the passenger conveyor when cleaning work is performed,
Although it is better that the weight of itself is not so heavy, a certain amount of self-weight is required to generate the sliding frictional force necessary to effectively operate the function of scraping dust at the tip portion. Therefore, in order to satisfy both of these requirements, it is preferable to increase the weight on the front end side and reduce the weight on the rear end side.

At the tip of the oil receiving plate cleaning device of the passenger conveyor, there is provided a plate-shaped scraper made of a strip-shaped steel plate or the like, which is rotatably attached to the tip in parallel with the tip by a plurality of hinges or the like. . The scraper is biased toward the oil receiving plate surface by a spring or the like, but is regulated so as not to rotate beyond the 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 shaft to collect dust accumulated on the oil receiving plate for cleaning. When performing, the length is set such that the bottom plate with the tip facing the traveling 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 of an escalator will be described in detail with reference to the drawings.

[0010]

1 is a perspective view of an oil receiving plate cleaning device for an escalator according to an embodiment of the present invention at a mounting position, 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 an endlessly connected step chain, and 3 is a step 2 of an endless conveyor.
The oil receiving plates provided along the lower part of the reversing traveling path that travels in a state of upside down, 4 are a pair of guide rails for guiding the front wheels of the step 2 which will be described later in the traveling direction, and 5 are the front wheel shafts which will be described later Front wheels rotatably attached to both ends, 6 is a front wheel shaft of one step 2 of the escalator 1 connected in an endless manner, 7 is a pair of pedestals rotatably supported by the front wheel shaft 6,
Reference numeral 10 denotes a cleaning device body formed of a metal plate such as a steel plate and swingably attached to the front wheel shaft 6.

Reference numeral 10a denotes a bottom plate of the cleaning device main body 10, and 10
b and 10c are a pair of side plates that are provided upright on the side ends of the bottom plate 10a, and 10d is a rear plate that partitions the rear end of the cleaning device body 10.
0e is an intermediate plate that reinforces the strength of the bottom plate 10a that is erected parallel to the side plates 10b and 10c at the center of the bottom plate 10a.
f and 10g are bottom plate 10a, side plates 10b and 10c, rear plate 1
0d and a pair of dust storage sections partitioned by the intermediate plate 10e, 10h is an inverted L-shaped L-shaped bracket attached to the center of the rear part of the rear plate 10d, and 10i is the rear plate 10d screwed to the pair of pedestals 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 body 10.
0a is a scraper attached so as to be rotatable to the endless conveyor side from a direction parallel to the bottom plate 10a so as to partially overlap with the bottom plate 10a, and to elastically contact the oil receiving plate 3 by a spring (not shown). It is a plurality of hinges that rotatably connect the tip portion 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 dust below the guide rail 4 can be cleaned.
The length is set to reach the bottom of the pair of guide rails 4. As described above, a large number of steps 2 are connected to the step chain, and correspondingly a large number of front wheel shafts 6 and front wheels 7 are also connected, but for simplicity, in FIG.
Only those with the attached are shown. Further, other configurations such as a drive mechanism of the escalator 1 (not shown) are the same as those of the conventional example, and are omitted.

Next, the operation of this embodiment will be described.
FIG. 3 is a flow chart showing a work procedure for cleaning the oil receiving plate of the escalator. The details of the oil receiving plate cleaning work of the escalator will be described with reference to FIG. First, the worker stops the operation of the escalator 1, and then installs a safety fence at the upper and lower entrances so that a general person other than the worker does not enter (S1). Next, the upper machine room 1 of the escalator 1
Remove the cover plate covering the upper part of a, enter the inside of the upper machine room 1a, and when the escalator 1 is in the ascending operation, remove the three steps 2 from the part near the upper reversing part of the endless conveyor (S2). ).

After that, the front wheel shaft 6 located at the center of the endless conveyor from which the step 2 has been removed is moved to the position immediately downstream of the upper reversing portion. Then, the cleaning device main body 10 is carried into the upper machine chamber 1a, and the tip of the cleaning device main body 10 is drawn toward the lower side of the upper reversing portion in the direction in which the endless conveyor reversely travels, and the tip of the cleaning device main body 10 is pulled. The rear end side is lifted while the oil is placed on the oil receiving plate 3, and the cleaning device main body 10
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 side to bring the rear plate 10d and the receiving base 7 into close contact with each other, and then the rear plate 10d is fixed to the receiving base 7 by screwing a pair of bolts 10i.

The cleaning device body 10 is designed so that a larger weight is applied to the tip side thereof, and moreover, the own weight of the cleaning device body 10 is converted into a rotational moment about the front wheel shaft 6, so that the cleaning device body 10 is made. A downward stress that pushes the surface of the oil receiving plate 3 acts on the tip of the scraper 11, and the scraper 11 at the tip of the bottom plate 10a receives a reaction and rotates in the clockwise direction along the surface of the oil receiving plate 3, so that the entire bottom surface of the scraper 11 is removed. It comes into contact with and presses against the surface of the oil receiving plate 3. In this way, when the bottom plate 10a of the cleaning device body 10 is tilted in the traveling direction, the front end side is supported by the oil receiving plate 3 of the reversing part and is rotatably attached to the front wheel shaft 6, the mounting work of the cleaning device body 10 is performed. Is completed (S3).

After that, the worker 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 body 10
Frictionally travels on the oil receiving plate 3 from the upper part to the oblique part and the lower part while bringing the scraper 11 attached to the tip end thereof into 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 its own weight and inclination of the cleaning device main body 10, and scrapes dust accumulated thereon. In this way, the scraper 11 slides on the oil receiving plate 3 while receiving an appropriate sliding frictional force, so that even if a large amount of dust or dust hardened by leaked oil is scraped off, it is possible to surely collect them. You can Further, since the tip edge of the scraper 11 slidingly contacting the oil receiving plate surface 3 presses the oil receiving plate surface 3 with a substantially constant pressure, the pressing pressure of the tip edge of the scraper 11 which is held substantially constant is always constant. The ability to scrape dust can be demonstrated.

When it is confirmed that the cleaning device body 10 has reached the lower machine room, the worker operates the manual operation button to stop the escalator 1 and removes the cover plate of the lower machine room (S5). Then, the cleaning device main body 10 is removed from the front wheel shaft 6 by entering the lower machine chamber, loosening the bolt 10i, and pulling it out (S6). Since the rear end side of the cleaning device main body 10 is supported by the front wheel shaft 6 by the L-shaped bracket 10h also during the removing work as in the mounting work of the cleaning device main body 10, the bolt 10i can be removed from the pedestal 7 as well. It can be easily done by one person. After that, the cleaning device body 1
The dust scraped by 0 and the surrounding dust are collected by using a broom, a brush or the like, packed in a dust collection bag or the like and discarded (S7).

Next, the worker attaches the cover plate of the lower machine room to cover the upper part 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 shaft with the step 2 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 shaft 6 (S9). Next, after attaching a cover plate that covers the upper part of the upper machine room 1a to cover the upper part of the upper machine room 1a (S10), the safety fences provided at the upper and lower doorways are removed (S11).

As described above, the oil receiving plate 3 according to this embodiment.
The cleaning work of the dust accumulated on the top requires the removal and installation of the steps 2 which occupy most of the preparatory work and the post-processing work, and the work for only 3 pieces is required. Since it is only necessary to orbit, the labor of the worker can be greatly reduced, and the working time can be reduced to about half that in the case of manual work. Further, since the L-shaped bracket 10h is provided on the rear end side of the cleaning device body 10, one worker can easily and safely attach and detach the cleaning device body 10 to and from the front wheel shaft 6. be able to.

[0020]

As described above, according to the present invention, a rigid bottom plate, side plates and rear plates erected at the side and rear ends of the bottom plate, and the front wheel shaft attached to the rear plate. A cleaning device body composed of an inverted L-shaped bracket for rotatably mounting the rear side thereof, a strip-shaped scraper provided at the tip of the bottom plate and rotatable and parallel to the tip edge of the bottom plate, An endless conveyor which is attached to a front wheel shaft and has a pedestal in which the cleaning device main body is rotatably supported on the front wheel shaft by fixing the rear plate with a bolt, and the passenger conveyor is rotated by a half circumference. By running the tip of the oil receiving plate cleaning device attached to the oil sliding plate against the surface of the oil receiving plate, it is possible to collect the dust accumulated on the oil receiving plate. As if it had been applied to and solidified Even dust affixed to the oil receiving plate surface can be reliably and safely cleaned, moreover, it is possible to perform mounting and dismounting easily.

[Brief description of the drawings]

FIG. 1 is a perspective view of an oil receiving plate cleaning device according to an embodiment of the present invention at a mounting position.

[Fig. 2] Similarly, its front view

FIG. 3 is a flowchart showing a work procedure for cleaning the oil receiving plate of the escalator.

[Explanation of symbols]

 1 Escalator 1a Upper machine room 2 Steps 3 Oil receiving plate 4 Guide rail 5 Front wheel 6 Front wheel shaft 7 Cradle 10 Cleaning device body 10a Bottom plate 10b, 10c Side plate 10d Rear plate 10e Intermediate plate 10f, 10g Dust storage part 10h L-shaped bracket 10i Bolt 11 Scraper 12 Hinge

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyuki Yamane 1-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building System Service Co., Ltd.

Claims (1)

[Claims] 1. An oil extending along the lower side of a passenger conveyor that conveys passengers on the steps by running around an endless conveyor having steps attached to an endlessly connected step chain. In an oil receiving plate cleaning device for a passenger conveyor for cleaning dust accumulated on a receiving plate, a rigid bottom plate, side plates erected in pairs at least at a side end of the bottom plate, and a rear plate of the bottom plate. A rear plate erected so as to partition the end, and an inverted L-shape for rotatably mounting the rear side 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 composed of a bracket and a bottom plate, and is rotatable in a direction to receive pressure when pressed against an oil receiving plate surface from a direction parallel to the bottom plate, and Energized in the direction opposite to the direction in which pressure is applied. And a strip-shaped scraper parallel to the front edge of the bottom plate and a front wheel shaft attached to the cleaning device body, which is rotatably supported by the front wheel shaft by fixing the rear plate with bolts. With a table, the passenger conveyor is circulated only a half circumference, and the tip of the oil receiving plate cleaning device of the passenger conveyor attached to the endless conveyor is moved while slidingly contacting the oil receiving plate surface, An oil receiving plate cleaning device for a passenger conveyor, characterized in that dust accumulated on the oil receiving plate can be collected.