CZ20032770A3 - Traveling staircase or movement pavement - Google Patents

Abstract

The escalator or moving pavement has a cleaning device (10) which is engaged at least partially during the transporting and maintenance operation of the escalator or moving pavement, and has a control element through which a brush bearing (14) is movable. The control element is connected to the brush bearing by a lever (16) or other gear. The control element bears against the top surface of the tread area (48) to be cleaned and especially with spring-loading. An Independent claim is included for a cleaning device for the cleaning of an escalator or moving pavement and equipped with revolving brushes which rotate during the transporting operation of the escalator or moving pavement.

Description

MOBILE STAIRS OR MOBILE WALK

Technical field

The invention relates to escalators or escalators according to the preamble of claim 1.

BACKGROUND OF THE INVENTION

Such escalators or moving walkways with cleaning devices have long been known. For example, a device for cleaning escalators is already described in DE OS 16 30 597.

The escalator according to the introduction or the associated escalator is known from DE OS 37 04 388. In this solution, a circulating brush is provided, which is mounted on the brush bearing and is intended to clean a step or a variety of escalators or escalator. The solution described in this document is intended primarily to clean the area of the vertical surfaces of the stairs, while the cleaning is to be additionally supported by a suction nozzle. In the case of standing escalators, the rotating brush roller is guided above the individual steps with their treads and risers so that the stair belt can be gradually cleaned.

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As mentioned in the description, it is preferable to start at the lowest tread, i.e. adjacent to the lower ridge plate. If the upper comb plate has been reached, the escalator must be restarted for further cleaning, and for each escalator, this strenuous half-automatic and half-manual cleaning must be repeated three times to clean the stair belt completely.

However, it is not ensured that the person in charge of cleaning does not overlook the area of the stairway strip, so some attention is required when operating.

Numerous other designs have been known to date for escalators or escalators. An example of this is disclosed in EP A2 191 888. In this solution, the use of escalators is used, whereby the ridge plate adjacent to the frame for cleaning escalators is clamped transversely across the width of escalators between the balustrade, and of stairs. This solution has the advantage of lower operating costs. The disadvantage is that this principle prevents the risers from being cleaned.

On the other hand, the risers are usually very sensitive in terms of pollution. While the comb plate fingers usually engage the grooves of the treads and allow partial cleaning, such measures are not usually provided for the risers. However, excessive levels of contamination can limit the relative movement of adjacent steps and lead to breakdowns.

For escalators, the transition area between the steps and risers is the leading edge of the escalators.

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PV 2003-2770 stairs very extraordinarily delicate. There the bridges of the risers pass to the bridges of the risers. In this area the bridges are supported only from below and relatively unprotected laterally.

On the other hand, these areas first engage the ridge plates in the respective operation, which require that each groove laterally from the respective bridge be free. Existing impurities such as dried chewing gum residues - can lead to ridge plate teeth breakage or damage the bridge tips when engaging the ridge plate.

In order to reduce the susceptibility to damages when the ridge moves between the platform and the ridge plate, it is also known to moisten the dirt inside the jets located in the ridge plate, with the advantage that the ridge plate can better perform its rough cleaning function - at least for certain dirt substances. . However, such solutions are unsuitable if water-insoluble impurities such as the gum residues mentioned above have to be removed. In addition, the spraying of escalators with aqueous cleaning liquid leads to the surface of the platforms becoming downwardly slippery and should not be operated during the operation of the spray nozzles.

A further disadvantage of roller brushes or other circulating cleaning brushes of the escalators of the hitherto proposed staircase cleaning apparatus is that the roller brush is able to clean the platform but the important front edge - and also the rear edge - is mostly difficult to clean. The transition area of the riser does not clean at all.

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SUMMARY OF THE INVENTION

It is therefore an object of the invention to provide improved cleaning of escalators or escalators that greatly reduce the maintenance costs of escalators and escalators without requiring extremely high investment.

This object is achieved according to the invention by claim 1. Advantageous improvements result from the subclaims.

Unexpectedly, the escalators according to the invention allow for the first time the escalator or escalator to be cleaned during escalator operation, i.e. not only while the escalator or escalator circulates, but while the escalator or escalator carries passengers.

According to the invention, it is particularly advantageous here that the cleaning device operates below the upper leg of the step or pallet belt, for example in the return zone or in the lower leg of the step or pallet belt. The distance between the surface to be cleaned and the circulating brush can be controlled by the control element according to the invention. This ensures that the circulating brush performs intensive cleaning on the platform surface, but does not exert too high a surface pressure in the region of the front or rear edge. If the spring-only brush were to be pushed onto the surface to be cleaned, the cleaning pressure in the region of the leading edge and trailing edge of the platform would be so high that there could be signs of wear and in particular the bristles of the circulating brush could easily be damaged by the spikes.

According to the invention, on the other hand, it is particularly advantageous

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If the control element maintains a constant distance between the surface to be cleaned, the control element maintains a constant distance between the surfaces to be cleaned. and a brush so that the back and front edges of the stairs can be cleaned gently but thoroughly.

According to the invention, it is particularly advantageous that the stair or pallet belt automatically expands in the return zone. This ensures that the brush can very well catch the edges of the platforms. If necessary, it is also possible to clean the risers additionally, it being understood that rapid - or motor-assisted - movement of the brush bearing should be possible for this in order to allow the brush to enter and exit the gap between two steps quickly. .

According to the invention, it is particularly advantageous if control discs are provided as control elements which are provided on the side of a step of stairs or pallets and which allow a circulating brush to guide the surface.

By coaxial bearing, keep the redirected brush abuts low while ensuring that the movements of the control disc.

without the drive mechanism low weight, so that wear on the cleaned roller brush can quickly be revolving surfaces, monitor

For the first time, the solution according to the invention offers the possibility of cleaning escalators or moving walkways also during operation. For this purpose, the cleaning device is in each case located below the upper strand of the stairs or pallets. Particularly suitable is one of the reversing points, in particular the lower reversing point, or, in any case, one in which the drive motor for the belt of stairs or pallets is not provided. In the area of the return point, the belt of steps or pallets expands, so that cleaning is possible

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According to the invention, it is particularly advantageous that the distance guide of the roller brush can be provided with a compression spring which, however, adjusts the distance by the control disc. This ensures that the brush does not sit too tightly on the edges and too little on the surface and that there are no unequal cleaning effects and unequal wear. Thus, the compression spring does not push the brush uncontrolled onto the surface to be cleaned, but deliberately controlled by the control disc.

If the minimum moment of inertia is desired, the drive shaft for the control disc and the roller brush can be driven by a chain or belt drive, which is driven by a stationary drive motor. Thus, in this solution, the pulley is preferably provided in the pivoting axis of the brush bearing.

In a modified embodiment, the drive motor for receiving the brush is fixed by a flange so that it also pivots. The solution has the advantage that no driving forces are introduced into the brush housing, so that the control disk is less loaded.

In a particularly preferred embodiment, the roller motor drive motor is integrated in the brush itself. The brush is preferably formed on a hollow cylinder in which sufficient space is provided for an electric motor formed in a suitable manner. This solution also has the advantage that assembly and possibly also maintenance are greatly facilitated, thereby reducing maintenance costs.

Advantageously, the control disc is designed to circulate with a circulating belt of steps or pallets, i.e. their cleaned

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and drifting through them. In order to allow the desired relative speed between the roller brush and the surface to be cleaned without the wear of the steering disc for the cleaning effect, it is advantageous to mount the steering disc on the roller brush shaft with a sliding or rolling bearing.

Advantageously, the brushes are provided on both sides of a circulating belt of steps or pallets, one or two control discs being provided, if necessary. In the dual control disc design, the connection of the two brush mounts is not required, while using a single control disc requires a firm connection of the two brush mounts.

The control element may also be formed in any other embodiment. For example, a lever provided with a contact roller can adjust the distance between the surface to be cleaned and the roller brush, if desired, by a lever or other drive mechanism.

Preferably, the cleaning device is started regularly during operation. This solution can combine good cleaning with low wear of the roller brush. To this end, it is advantageous to provide a pulling magnet which, against the action of the compression spring, lifts the cylindrical brushes away from the surface to be cleaned, while the cleaning device does not work. During cleaning operation, the solenoid is released. A preferred embodiment of this solution has two electromagnets and operates with a snap-in device which allows the cleaning device to engage in a rest position when the pull magnet has lifted the roller brush from the surface to be cleaned. Thus, for cleaning operation, only another electromagnet must be driven briefly, which pulls the latching element back and thus the roller brush disturbs the action of the compression spring.

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- BRIEF DESCRIPTION OF THE DRAWINGS 3 - .. Φ • Φ φ Φ · Φ · · · φ φ Φ φ Φ> Φ · · φφφφ φ φ φφφφ φ φ φ φφφ φ φφφ φ φ »φφ φ The invention will closer explained via concrete examples design depicted in the drawings; which represents Fig. 1 form design moving stairs according to invention or moving sidewalk by

2 shows a top view of a part of the cleaning device in the embodiment according to FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION

The cleaning device 10 shown in FIG. 1 preferably has a rotating brush 12 designed as a cylindrical brush 12 and is rotatably mounted on the pivot lever 16 of the brush housing 18 by means of a brush bearing 14. The pivot lever 16 is on its side mounted on its pivot axis 20 on a frame-fixed beam 22 of the escalator or moving walkway. The beam 22 is provided in the region of the lower stair or pallet belt return point 24. In the illustrated embodiment, for example, three escalators 26, 28 and 30 are shown. In the region of the return point 24, the steps extend so that their leading edge 32 and their trailing edge 34 lie freely. Also, the upper part of the platform 36 is exposed and can be cleaned according to the invention with a roller brush.

According to the invention, there is a roller brush 12 on the shaft 40,

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As shown better in FIG. 2, a control element, preferably in the form of a control disc 42, is mounted. The bearing is carried out in the illustrated embodiment by means of a roller bearing, here a ball bearing 44, it being understood that they are also any other bearings possible. As can be seen, the brushes of the cylindrical brush 12 have a projection 46 of the diameter of the control disc 42. By selecting the dimension of the projection, that is to say by virtually selecting the diameter of the control disc 42, the cleaning effect of the roller brush can be adapted to the requirements. The larger the dimension 46 of the projection, the more intense the cleaning, but also the wear of both the tread surface 48, the leading edge 32 and trailing edge 34, and the bristles of the roller brush 12 itself.

As also shown in FIG. 2, the shaft 40 is connected to the drive motor 52 by the reciprocating gear 50. In the illustrated embodiment, the drive motor 52 is fastened by a flange directly to the brush housing 18 as close as possible to the pivot axis 20.

Preferably, the roller brush is provided with a row of bristles which extends slightly spirally undulating along the axial course of the brush and in which each row of bristles is mounted on one brush segment. This solution enables the replacement of bristles after wear and when necessary, at low cost. According to the invention, it is particularly advantageous that the brushes can be operated at a very low speed, so that wear, despite intensive cleaning, is negligible. For example, it is possible to drive the roller brush at a speed of less than one revolution per second, the direction of cleaning being preferably selected opposite to the running direction of the escalators.

In escalators, it is advantageous to vary the drive speed of the roller brush according to the direction of travel

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PV 2003-2770 escalators, it being understood that the cleaning cycle can only be started when the escalators are running in the desired direction of travel.

Claims (11)

PATENT CLAIMS Escalators or moving walkways with a cleaning device which acts on at least the tread of a step or pallet of escalators or moving walkways and cleans them and has a circulating brush bearing mounted on it, characterized in that the cleaning device (10) is lowered at least partially during operation or during maintenance of escalators or escalators, and has a control element which is a movable brush bearing (14). Escalator or moving walkway according to claim 1, characterized in that the control element of the cleaning device (10) is connected to the brush bearing (14) by a lever or other drive mechanism. Escalator or moving walkway according to one of the preceding claims, characterized in that the control element abuts on the surface of the cleaned tread (48), in particular spring-actuated. Escalator or moving walkway according to one of the preceding claims, characterized in that the control element adjusts a substantially constant distance between the brush bearing (14) and the tread area (48) to be cleaned. Escalator or moving walkway according to any one of the preceding claims, characterized in that the control element has a bearing roller (control disc 42) which abuts on this step when the belt of steps or pallets moves 16 86808 (86808a) PV 2003-2770 and freely at the same time orbits. Ί 0 - · · · ^Χ 99 9 9 9 99 9 9 9 9 9 0000 0 0 99 9 9 9 9 9 99 9 999 999 • 0 00 9 0 0 0 0 0 0 0 0 0 0 0 6. Escalators or moving walkway according to any of the previous claims s e by that cleaning equipment (10) is regulated in the area re-routing, in particular bottom re-routing, of a stair or pallet belt, and cleans the stairs or pallets while being stretched on a circulating belt. Escalator or moving walkway according to one of the preceding claims, characterized in that the orbiting brush is designed as a cylindrical brush (12), which is located on a shaft (40) on which the control element is also located, and that it is a control the element is designed as a control disc (42). Escalator or moving walkway according to any one of the preceding claims, characterized in that the control element formed as a control disc (42) and the brush formed as a cylindrical brush (12) are mounted on a common shaft and in particular that the control disc (42) is freely rotatably mounted on the shaft (40). Escalator or moving walkway according to claim 8, characterized in that the rotary drive is an electric motor that can be started separately from the escalator or moving walker drive motor (52). Escalator or moving walkway according to one of the preceding claims, characterized in that the cleaning device has a rotary brush drive motor (52), which can be periodically started during transport operation or during maintenance to carry out the cleaning program. 16 86808 (86808a) PV 2003-2770 - 13 - • · • · · · • · · • · · · · · • · • · · · · • • · • • • • · · · ·· ·· • · • · • · · • · · • · · escalators or moving pavement 5. that is modified separation device by which are brushes during traffic or during maintenance periodic can be indicated outside the engagement of the treads (48), but at the time of non-cleaning. Escalator or moving walkway according to any one of the preceding claims, characterized in that the orbiting brush extends substantially over the entire width of the stair or pallet belt and has in particular brush segments which extend slightly spirally undulated above the brush path as observed in their axial direction. 12. A method of cleaning escalators or moving walks using a cleaning device which acts on at least a step surface or a pallet of escalators or moving walks and cleans them, wherein the step is cleaned by a circulating brush rotating in the brush bearing, in particular upstream running stairway or escalator characterized in that the circulating brush rotates during operation of escalators or escalators and the brush bearing (14) is movable during operation of escalators or escalators.