JPH10218547A - Cleaning device for passenger escalator step chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning device for a passenger escalator step chain, for cleaning even outer side face parts of an escalator step chain. SOLUTION: A cleaning device 7 for a passenger escalator step chain comprises a base board 16 fixedly bracketed to a main frame 1 arranged near a step chain 3, and a brush 17 implanted in the board 16 so as to contact with the chain 3 being circulated. The brush 17 is constituted of shorter bristle parts 17a of shorter bristles implanted so as to face the chain 3 and to butt against the peripheries of the roller parts and the plate parts of the chain 3, and longer bristle parts 17b of bristles longer than those of the shorter bristle parts 17a implanted outside them so as to butt against outer side face parts of the chain 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cleaning a step chain of a passenger conveyor typified by an escalator and a moving sidewalk.

[0002]

2. Description of the Related Art A conventional step conveyor chain cleaning apparatus for a passenger conveyor is disclosed in, for example, Japanese Utility Model Laid-Open No. 63-198272, which will be described with reference to FIGS. FIG. 12 is a schematic view of an escalator as an example of a passenger conveyor.
Are attached so that the power of the drive unit 4 is transmitted to the drive drum 5. An endless step chain 3 is hung between the driving drum 5 and the driven drum 6. A large number of steps 2 are attached to the step chain 3, and the driving drum 5 and the driven drum 6 These steps 2 run upside down. Further, a cleaning device 7 for cleaning the step chain 3 is attached to an upper portion in the main frame 1. As shown in FIGS. 13 and 14, the cleaning device 7 includes a substrate 7a fixed to a fixing base 8 for fixing a floor plate of an escalator entrance / exit, and a stepped chain 3 planted on the lower surface of the substrate 7a. The brush 7b, which is formed by implanting bristles having a substantially uniform length, is pressed against the roller portion 9 and the plate portion 10 of the step chain 3, thereby forming the step chain 3. The cleaning can be performed as the vehicle travels. In addition, the step chain 3 is schematically constructed by connecting a plate section 10 on both sides of a roller section 9 in an endless manner. The step 2 runs in conjunction with the step chain 3 via a wheel set.

[0003]

However, the above-described conventional cleaning device 7 only removes dust adhering to the outer peripheral surface of the roller portion 9 and the plate portion 10 of the step chain 3, and thus has the following effects. There was a problem that the cleaning could not be performed. That is, when the dust adhering to the step chain 3 of the passenger conveyor with the cleaning device 7 removed is examined, as shown in FIG. 15, the outer peripheral surface of the roller portion 9 is in contact with the driving drum 5 and the driven drum 6. Although the amount of dust attached is relatively small due to contact, the outer surface 11 of the roller 9 and the plate 10 does not come into contact with other members, so that a large amount of dust 12 adheres to the outer surface 11 over time. I will do it. However, as shown in FIGS. 13 and 14, the brush 7b of the conventional cleaning device 7 is made of bristles having a substantially uniform length that can slide on the outer peripheral surface of the roller portion 9 with an appropriate pressure. Outer surface 1 of step chain 3
1 could not sufficiently contact the hair, and therefore dust and dirt adhering to the outer surface 11 could not be effectively removed.

In some cases, an operator may directly clean the outer surface 11 of the step chain 3 with the passenger conveyor stopped, but one outer surface 11 is close to the step 2 and the other is. Since the outer side surface portion 11 is close to the front wheel (not shown) assembled to the front wheel shaft, a hand is inserted into a small gap to remove dust on the outer side portion 11, and the passenger conveyor is slightly operated to immediately stop. This type of cleaning method, in which the operator must repeat the operation of removing dust from the outer surface portion 11 after that, requires a great deal of time and labor, and is not preferable.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a passenger conveyor step chain cleaning apparatus which can automatically clean a step chain up to an outer surface by operating the passenger conveyor.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention is used for cleaning a step chain formed by connecting plate members on both sides of a roller endlessly. A stepped chain of a passenger conveyor, comprising: a base attached to a fixing member installed near the stepped chain; and a brush planted on the base and sliding on the stepped chain during traveling. In the cleaning device,
A short bristle part with a short bristle that is planted with the brush so as to face the step chain and is in contact with the outer peripheral surfaces of the roller part and the plate part; and the short bristle part is planted outside the short bristle part. The hair part is longer than that of the roller part and the long hair part which comes into contact with the outer surface of the plate part.

In this configuration, the base may be fixed to the fixing member, or the base may be a cylindrical member rotatably attached to the fixing member. The brush may be implanted on the outer periphery of the brush.

[0008] In the step chain cleaning device constructed as described above, the brush planted at the base attached to the fixing member in the vicinity of the step chain is composed of short hair portions and long hair portions, and the roller portion and the plate portion are provided with a brush. The short hair portion is brought into contact with the outer peripheral surface, and the long hair portion is brought into contact with the outer surface portion of the roller portion and the plate portion, so that when the passenger conveyor is operated, the step chain is automatically covered. In particular, since the outer surface portion of the step chain to which a large amount of dust easily adheres can be cleaned with the long hair portion, effective cleaning in which dust hardly remains can be performed. Moreover, since the step chain cleaning device has a simple structure, it can be manufactured at low cost.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 are views for explaining one embodiment of the present invention, FIG. 1 is a perspective view showing an attached state of a step chain cleaning device according to the embodiment, and FIG.
3 is a perspective view of the step chain cleaning device shown in FIGS. 1 and 2, FIG. 4 is a front view of the cleaning device, and FIG. 5 is a bottom view of the cleaning device. .

As shown in FIGS. 1 and 2, in this embodiment,
In the machine room of the escalator, an L-shaped fitting 13 is fixed to the upper part of the main frame 1 installed near the step chain 3 with bolts 20, and the L-shaped fitting 14 is bolted to the fitting 13. And this connecting bracket 1
The substrate 16 of the cleaning device 7 is fixed to 4 via bolts 15. On the substrate 16 of the cleaning device 7, short hair portions 17a made of slightly thinner hairs are implanted on the inside, and the outside hairs are longer and slightly thicker than the short hair portions 17a. Long hair part 17b made of hair is planted,
The brush 17 composed of the short hair portion 17a and the long hair portion 17b is brought into contact with the roller portion 9 and the plate portion 10 of the step chain 3. Therefore, when the passenger conveyor is driven and the step chain 3 travels, the dust and dirt are automatically removed by the brush 17.

The structure of the cleaning device 7 will be described in detail with reference to FIGS. 3 to 5. The substrate 16 fixed to the connection fitting 14 has a brush 17 discretely fixed with bunch of hairs. The inner short bristle portion 17a of the brush 17 is a staggered bundle of bristles having a diameter of 0.3 to 0.4 mm, and the outer long bristle portion 17b has a diameter of 0.3 mm. A bundle of hairs of 8 to 1.0 mm is embedded in each row. In addition, the hair of the long hair portion 17b is longer than the hair of the short hair portion 17a, and the positional relationship with the step chain 3 in FIG.
As shown in FIG. 7, the short hair portion 17a contacts the outer peripheral surface of the roller portion 9 and the plate portion 10, while the long hair portion 17b contacts the roller portion 9 and the outer surface portion 11 of the plate portion 10.

Therefore, when the passenger conveyor is operated and the step chain 3 travels, dust and dirt adhering to the outer peripheral surface of the roller portion 9 and the narrow outer peripheral surface of the plate portion 10 are removed from the hairs. It is cleaned by the short short hair portions 17a, and the small outer surface of the roller portion 9 and the plate portion 1 are removed.
Outer surface portion 1 of step chain 3 including large outer surface of 0
The dust and dirt adhered to the long hair portion 17
It is cleaned by b.

As described above, the cleaning device 7 described above can clean the outer surface portion 11 of the step chain 3 to which a large amount of dust easily adheres, so that the step chain 3 can be effectively cleaned. Further, since the cleaning device 7 has a very simple structure, it can be manufactured at low cost.

FIGS. 6 to 8 are views for explaining another embodiment of the present invention. FIG. 6 is a side view showing a use state of the step chain cleaning device in the embodiment, and FIG. FIG. 8 is a schematic plan view of the escalator to which the step chain cleaning device shown in FIGS. 6 and 7 is attached.

As shown in these figures, the cleaning device 7 according to the present embodiment includes a cylindrical base 18 rotatably mounted on an upper portion of the escalator in the main frame 1, and a base 18.
The brush 19 has a short hair portion 19a having a short bristle foot and a short hair portion 19a.
The long hair portion 19b has a long hair portion planted on the outside of a. As shown in FIGS. 6 and 7, the brush 19 sets the interval B2 between the opposed long bristle portions 19b to be equal to or slightly smaller than the minimum width B1 of the step chain 3, and sets the full width B4 of the brush 19 to It is set slightly larger than the maximum width B3 of the step chain 3, and the difference L2 in length between the long hair portion 19b and the short hair portion 19a.
Is the maximum height L of the plate portion 10 of the step chain 3
It is set to be larger than 1. Therefore, the short hair portion 19a of the brush 19 corresponds to the step chain 3 which is connected endlessly and whose width dimension changes between B1 and B3.
Is reliably brought into contact with the outer peripheral surface of the roller portion 9 and the plate portion 10, and the long hair portion 19b is fixed to the roller portion 9 and the plate portion 1.
0 can be reliably brought into contact with the outer side surface portion 11, and dust and dirt can be removed in a contact area with the brush 19 as the step chain 3 travels. Further, since the cleaning device 7 has the base 18 rotatably attached thereto, the brush 19 is pushed into the traveling step chain 3 and rotates. However, the cleaning device 7 slides to such an extent that the cleaning effect is not impaired. Care is taken so that the brush 19 can contact the step chain 3 by pressure.

6 to 8, reference numeral 2 denotes a step, reference numeral 3a denotes a cotter pin for preventing the roller portion 9 of the step chain 3 from coming off, reference numeral 4 denotes an escalator driving device, and reference numeral 5 denotes this driving device. 4 is a driven drum to which the driving force is transmitted, 6 is a driven drum around which the step chain 3 is wound, and 22 is a front wheel supporting the load of the step 2 together with a rear wheel (not shown). , 22a are pivot shafts of the front wheels 22 and are front wheel shafts assembled to the step chain 3. As shown in FIG. 8, in this embodiment, the cleaning device 7 is mounted in the main frame 1 on the driven drum 6 side.

As described above, the rotatable cleaning device 7 in which the brush 19 is provided on the outer peripheral portion of the cylindrical base portion 18 has a strong and durable bristle of the bristles of the brush 19 as compared with the fixed type cleaning device. Can be used, the contact pressure is not continuously applied to a specific portion of the brush 19, and the undesirably large contact pressure on the brush 19 does not apply a load to the bracket, so that the durability is greatly improved. And high reliability can be expected for a long time.

The cleaning device 7 described above is of a driven type in which the brush 19 is pushed into the step chain 3 and is rotated, but may be a type in which the base 18 is rotated by a drive motor.

9 to 11 are views for explaining still another embodiment of the present invention. FIG. 9 is a side view of a step chain cleaning apparatus according to the embodiment, and FIG. 10 is a cleaning apparatus shown in FIG. FIG. 11 is an enlarged view of the long hair portion of the cleaning device shown in FIGS.

The cleaning device 7 shown in these figures has a cylindrical base 23 rotatably mounted on the upper portion of the escalator inside the main frame 1 and a short bristle portion which is planted on the outer periphery of the base 23. The point that is roughly constituted by the brush 24 having the long hair portion 24b and the short hair portion 24b is the same as that of the previous embodiment.
Ring body 25 formed in an annular shape by fixing the base end side of 4a
This embodiment is significantly different from the previous embodiment in that a ring-shaped ring body 26 in which the base end side of the long hair portion 24b is fixed and which is formed in an annular shape is externally fitted to the base portion 23 in a laminated state. That is, in the present embodiment, as shown in FIG. 10, after the ring bodies 26, 25, the annular collar 27, and the ring bodies 25, 26 are sequentially fitted on the outer peripheral portion of the base 23 and stacked,
The cleaning device 7 is configured by arranging holding metal fittings 28 on both side surfaces of the base portion 23 and tightening a plurality of places with flathead screws 29. Also, a ring body 25 made of a metal plate,
For example, as shown in FIG. 11, a rod-shaped member 26 is formed by caulking a bundle of U-shaped sections to hold a bundle of hair around a cylindrical surface having a diameter D equivalent to that of the base 23. Is formed. Therefore, adjustments such as shifting the positions of the short hair portions 24a and the long hair portions 24b and increasing or decreasing the amount of hair can be performed relatively easily in accordance with the shape of the step chain to be cleaned and the portion that is easily soiled. For example, if the annular collar 27 shown in FIG. 10 is removed and another short hair portion 24a is added thereto, the outer peripheral surface of the roller portion of the step chain including the central portion can be cleaned cleanly.

In the above description, the cleaning device 7 is attached to the upper portion of the main frame 1. However, the cleaning device 7 is installed at another location by using a fixing member installed near the step chain. 7 can also be attached.

[0022]

As described above, the step chain cleaning device for a passenger conveyor according to the present invention makes the short hair portion of the brush contact the outer peripheral surfaces of the roller portion and the plate portion of the step chain, and the roller portion And the long hair part of the brush is made to contact the outer surface of the plate part, so if the passenger conveyor is operated, it can be cleaned by automatically covering the step chain, especially when a large amount of dust is present. Since the outer surface portion of the step chain that is easily attached can be cleaned with the long hair portion, effective cleaning in which dust hardly remains can be performed. Further, since the step chain cleaning device has a simple structure, it can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an attachment state of a step chain cleaning device according to an embodiment of the present invention.

FIG. 2 is an enlarged front view showing a main part of FIG. 1;

FIG. 3 is a perspective view of the step chain cleaning device shown in FIGS.

FIG. 4 is a front view of the step chain cleaning device shown in FIGS.

FIG. 5 is a bottom view of the step chain cleaning device shown in FIGS.

FIG. 6 is a side view showing a use state of a step chain cleaning device according to another embodiment of the present invention.

FIG. 7 is a plan view of FIG. 6 as viewed from the direction of arrow A.

FIG. 8 is a schematic view of an escalator to which the step chain cleaning device shown in FIGS. 6 and 7 is attached.

FIG. 9 is a side view of a step chain cleaning device according to still another embodiment of the present invention.

FIG. 10 is a sectional view of the cleaning device shown in FIG. 9;

FIG. 11 is an enlarged view of a long hair portion of the cleaning device shown in FIGS.

FIG. 12 is a schematic view of an escalator as an example of a passenger conveyor.

FIG. 13 is a perspective view showing a conventional step chain cleaning device.

FIG. 14 is a front view showing a use state of a conventional step chain cleaning device.

FIG. 15 is a front view showing the step chain to which dust adheres.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main frame 2 Step 3 Step chain 7 Cleaning device 9 Roller part 10 Plate part 11 Outer side part 16 Substrate 17, 19, 24 Brush 17a, 19a, 24a Short hair part 17b, 19b, 24b Long hair part 18, 23 Base 25 , 26 Ring body

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masateru Nakano 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Japan Inside the Hitachi Building System Co., Ltd. (72) Inventor Susumu Kabashima 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Ltd. (72) Inventor Yoshinori Tokisu 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building System Co., Ltd.

Claims (5)

[Claims] The present invention is used for cleaning a step chain in which a plate portion is provided on both sides of a roller portion in an endless manner, and is attached to a fixing member installed near the step chain. In a step chain cleaning device for a passenger conveyor comprising a worn base and a brush which is implanted on the base and slides on the running step chain, the brush is directly opposed to the step chain. A short bristle part with a short bristle that is planted and is in contact with the outer peripheral surface of the roller part and the plate part; A step chain cleaning device for a passenger conveyor, comprising a long hair portion that contacts an outer side surface portion. 2. A step conveyor chain cleaning apparatus for a passenger conveyor according to claim 1, wherein said long bristle part of said brush is formed by flocking bristles thicker than said short bristle part. 3. The method according to claim 1, wherein
A step chain cleaning device for a passenger conveyor, wherein the base is fixed to the fixing member. 4. The method according to claim 1, wherein
A step conveyor chain cleaning apparatus for a passenger conveyor, wherein the base is a cylindrical member rotatably attached to the fixing member, and the brush is implanted on the outer periphery of the base. 5. The ring body according to claim 4, wherein the short hair portion has a ring shape formed by fixing the base end side thereof, and the ring shape formed by fixing the base end side of the long hair portion has a ring shape. And a step chain cleaning apparatus for a passenger conveyor, wherein the steps are externally fitted to the base in a stacked state.