EP0983959A2 - Apparatus for cleaning the carrying surface of a continous conveyor - Google Patents

Abstract

Cleaning equipment for escalators, travelators and conveyors has rotating cleaning brushes (42) which brush the moving track (12). The equipment is pushed onto the bottom end of the escalator with the rear section pressed down onto firm ground and to press the friction wheel (50) onto the moving track. No separate drive is required. The brushes remove debris from the track as it passes under the brushes. The cleaning process can take several circuits of the track elements.

Description

The invention relates to a device for cleaning a conveying surface a continuous conveyor, especially the tread an escalator or an escalator, with at least one in Rotatable brush means for removing dirt from the conveyor area.

Continuous conveyors are endless transport facilities for the transportation of people or general cargo. The most common continuous conveyor for passenger transportation are escalators and conveyor belts.

Escalators are used to transport people, for example in Department stores, train stations, airports, pedestrian underpasses, the direction of transport for escalators below an angle of inclination to the horizontal, so that with a Escalator a height difference can be easily overcome can, for example, from one floor to the one above or to reach the floor below. Show escalators a plurality of step profiles that are movable on endless encircling chains are attached and on both sides with Rolls are guided in slots so that the steps are always horizontal stay. At the entrance or exit area of the escalator the steps arise and disappear as a result of the curvilinear Course of the slots, i.e. before the steps arise or after they disappear, is the tread over the length of two or three step profiles.

Roller conveyors are used for essentially horizontal conveyance of people. Roll tapes usually have a flexible, over the end arranged deflecting rollers guided endless belt.

With all continuous conveyors, especially with escalators or Conveyor belts a problem arises from the fact that the conveying surface, i.e. the step surface on which people are transported stand, become dirty over time as a result of use and therefore must be cleaned from time to time.

So far, however, there are no adequate devices for cleaning the tread of an escalator or an escalator is known, that enable quick and inexpensive cleaning.

The steps of escalators or conveyor belts become Time mostly cleaned manually by cleaning staff. However, manual cleaning of an escalator is extremely difficult and takes about 8 hours more normal with an escalator Length. The escalator must be stopped for manual cleaning become. Stopping the escalator to clean the tread is already required for security reasons, as it is created and disappearance of the step profiles movable relative to one another there is a risk of fingers getting caught. Consequently can only be carried out in one pass when the Escalator overhead area of the tread can be cleaned. In order to be able to clean the entire step surface of the escalator, the escalator must therefore be started again at least once and be stopped again.

Furthermore, washing robots have been developed for cleaning escalators been. The washing robots have their own movement mechanism with which they are able to on a stationary escalator climbing the stairs while doing so to clean every single step. These washing robots are but very expensive to manufacture and also need their own energy source for their Locomotion mechanism. Since such washing robots only work very well is able to move slowly on the escalator Time spent cleaning the escalator even with these Washing robots very high. As with manual cleaning the further disadvantage is that the escalator during the cleaning process must stand still.

Another disadvantage is that the washing robot is not for cleaning of conveyor belts are suitable because of their locomotion mechanism especially on getting around on an escalator is adjusted.

Roll tapes are therefore made manually with washing brushes and washing liquid cleaned, which has the further disadvantage that the washing liquid in the drive mechanism of the Roll tape can reach, causing the function of the roll tape can be affected over time. A thorough one However, dry cleaning is hardly possible manually with a brush accomplish.

The invention is therefore based on the object of a device to provide for cleaning a conveyor surface of a continuous conveyor, which are manufactured with little technical effort and with which the conveying surface of the continuous conveyor can be cleaned efficiently with low costs and time can, and especially for cleaning an escalator and a roller conveyor is equally suitable.

With regard to the device mentioned above, this task solved in that at least one drive means for the Brush means is provided with a moving Part of the continuous conveyor can be brought into engagement, and the kinetic energy decreases from the current continuous conveyor, and that that Drive means the kinetic energy taken from the continuous conveyor transfers to the brush means, whereby this in Rotation is set.

The device according to the invention enables automatic Cleaning the conveyor surface of a continuous conveyor, in particular the tread of an escalator or an escalator. The invention Concept of this device differs of the known washing robots in that the device cleaning of the conveying surface while the continuous conveyor is running allows while the device during the cleaning process does not have to be moved itself. This has the first Advantage that the device according to the invention does not require any energy, to be moved along the conveyor area. There but in the device according to the invention for driving of the brush means required energy from the one in operation Continuous conveyor itself will continue to be derived achieved the advantage that the device according to the invention also for the operation of the brush means no separate energy source needed. This means cleaning with minimal costs possible. The further advantage of the device according to the invention is that by means of the kinetic energy of the running continuous conveyor in rotation Brush means enables efficient cleaning of the conveying surface is so that even without using a washing liquid good cleaning results can be achieved. The time required to clean the conveying surface is also over the device according to the invention significantly reduced because of On the one hand, the continuous conveyor was not stopped during cleaning must be, but the cleaning is done continuously can, and on the other hand the cleaning time is no longer than the duration of one or more full revolutions of the production area of the continuous conveyor. From the foregoing themselves that the device according to the invention both for cleaning of escalators as well as for cleaning conveyor belts is, so that the device according to the invention can be used universally is. The personnel expenditure for cleaning a continuous conveyor is reduced by the device according to the invention, which also saves costs. Because of the diminished Escalators and Roll tapes are cleaned much more often than it is currently because of the high costs and time involved so far.

The object underlying the invention is thus completed solved.

In a preferred embodiment, the drive means is as Rotating part trained and takes the kinetic energy from an essentially translationally moving part of the Continuous conveyor.

The design of the drive means as a rotating part Advantage that there is a structurally simple transmission mechanism provide from the drive means to the brush means leaves because the brush means a rotating part is. There is also a simple weight loss mechanism the kinetic energy from the continuous conveyor.

In a further preferred embodiment, the drive means at least one friction wheel.

This measure has the advantage that it is structurally very simple Driving means is created that a decrease in kinetic energy made possible by frictional contact, whereby also engaging with the continuous conveyor very much is easy to do, for example by simple Placing the friction wheel on, for example, the conveying surface of the Continuous conveyor itself.

In a further preferred embodiment, the drive means can be brought into engagement with the conveying surface itself.

Since the conveyor area is easily accessible from the outside, it has Measure the advantage that when bringing the Device the drive means in an advantageously simple manner with the continuous conveyor to decrease the kinetic energy in Intervention can be brought. With an escalator, the Tapping the kinetic energy at the entrance or exit area the escalator, i.e. at a point where the steps arise or disappear and thus a sales-free area form. In the case of a roller conveyor, the drive means can be used with the In principle, the conveying surface engages at any point to be brought. The further advantage of this measure is in that the device is constructed flat overall can be.

In a further preferred embodiment, the drive means engages with a handrail of the continuous conveyor bringable.

This measure also represents an advantageous possibility the drive means with the continuous conveyor for reducing the kinetic energy to engage. Especially with escalators this can be beneficial because the handrail also at an escalator is free of steps.

In a further preferred embodiment, the device arranged stationary as a substructure under the continuous conveyor.

This measure has the advantage that the device on a Escalator at a the transportation of people or general cargo non-obstructing point can be permanently installed. By a suitable device for moving the cleaning device up and by engaging the drive means with the continuous conveyor, the device can be used as required be put into operation, or it can run continuously, so that the continuous conveyor is then cleaned continuously, as soon as it is put into operation.

In a particularly preferred embodiment, the device trained as a handcart to go on the spot Bring the device movable and during the cleaning process is noticeable.

This embodiment of the device according to the invention has the Advantage to be particularly inexpensive because a single invention Device for cleaning several continuous conveyors, for example, all escalators in a department store, can be used. By designing as Handcart, for example with two or more wheels for moving of the handcart, the device according to the invention can an operator comfortably and without great effort the escalator to be cleaned or the conveyor belt to be cleaned be pushed. The fact that the trolley during Cleaning process is noticeable, the further advantage achieved that the operator the handcart during the Cleaning process does not have to hold on, which makes it easier to use the device according to the invention increased is.

In a further preferred embodiment, the drive means by spring force and / or by weight with the Continuous conveyor can be brought into engagement.

This measure has the advantage that the drive means, for example in the form of the aforementioned friction wheel, with the necessary Contact pressure, on the conveying surface or the handrail of the Continuous conveyor can be pressed, causing a slip of the Avoid driving means on the conveying surface or the handrail becomes. This prevents a standstill due to slippage of the brush agent is caused. The engaging by gravity is also constructive because of it simple design very advantageous.

In a further preferred embodiment, the drive means and / or the brush means on a stem of the trolley arranged around a rear transverse axis of the trolley is tiltable to the drive means and / or the brush means to engage with the continuous conveyor.

The advantage here is that the drive means and / or Brush means in a particularly easy to use way the conveying surface can be brought into engagement by the Operator places the device on the running conveyor surface approaches and parked on the spot, the stem by weight automatically tilts forward and at least that a drive means with the tread of the escalator or the roller conveyor automatically engages and the brush means then rotated.

It is further preferred if at the rear of the Trolley has a bearing surface that is considered to be essentially non-slip surface on a firm surface serves in front of the continuous conveyor.

This makes a structurally particularly simple, but safe, determination of the device based solely on weight achieved on the continuous conveyor by the hand cart by friction between the support surface and the surface is detected. The contact surface can also with a non-slip surface. Through this configuration becomes the ease of use of the device according to the invention further improved since the device started after driving up the escalator or to the conveyor belt without further fastening measures is immediately operational.

In a further preferred embodiment are on the handcart two wheels arranged to push the device forward serve, the bearing surface being arranged with respect to the wheels is that by tilting the trolley around the wheel axles Wheels to the rear of the bearing surface with the ground outside Can be engaged and by tilting the wheels forward lift off the ground.

This measure further contributes to easier handling and for faster readiness for use of the device according to the invention at. By tilting the trolley backwards you can push the trolley particularly comfortably on both wheels, to get to the escalator to be cleaned. When the trolley is tilted forward, the wheels come automatically disengages from the surface, and instead the hand cart rests on the previously mentioned contact surface the fixed surface in front of the escalator or the rolling tape. The other advantage is here in that no brakes have to be provided for the wheels, whereby the design effort is kept low.

In a further preferred embodiment, the stem is relative adjustable to the handcart.

This measure has the advantage that the stem is different Inclinations between the treads and the one in front solid surface, i.e. adapted to the pedestal of the escalator can be. It can therefore be the ideal position of the Stem and thus the drive means and brush means set become.

In a further preferred embodiment, the stem is by means of a threaded rod and a joint with cross to the handcart running joint axis connected to the handcart.

The threaded rod can be easily operated How to conveniently adjust the incline of the stem relative to the handcart.

In a further preferred embodiment is in the rear area at least one weight to increase above the contact surface the contact pressure of the contact surface on the fixed Arranged underground.

By this measure, the contact force and thus the frictional connection between the contact surface and the fixed surface advantageously further increased to make the device safe to be determined on site.

In a further preferred embodiment, this is at least a weight removable from the handcart.

It is also advantageous that the invention Device when not in use, without the weights can be turned off, and then lighter without the weights ranks.

In a further preferred embodiment, the brush means at least one lying approximately arranged cylindrical Roller brush with its axis of rotation transverse to the direction of movement the funding area runs.

The advantage here is that arranged with such a lying and by a direction transverse to the direction of movement of the conveying surface Rotating roller brush rotating axis a very efficient and thorough cleaning of the conveyor area is made possible. The roller brush can be beneficial have a length which is adapted to the width of the conveying surface is.

In a further preferred embodiment, the drive means drives the roller brush in opposite directions with respect to the conveying surface Direction.

This measure has the advantage that this direction of rotation the cleaning effect of the roller brush is further improved, because a higher relative speed between those on the roller brush provided, radially projecting with the bristles rotating around the roller brush and those under the bristles continuous funding area can be achieved.

In a further preferred embodiment, the roller brush pivotable about a longitudinal axis by at least 180 °.

Because the width of the conveyor area from continuous conveyor to continuous conveyor can vary, this configuration enables advantageous way to form the roller brush with a length, which is smaller than the smallest width of conveyor areas usual continuous conveyor. By swiveling the roller brush around The conveying surface of the continuous conveyor can be 180 ° in two cleaning cycles be cleaned across their entire width. The Manageability of the device according to the invention is by the Swiveling of the roller brush simplified.

In a further preferred embodiment, the roller brush removable, where necessary several different roller brushes be kept ready.

The advantage here is that by exchanging the different Roller brushes the device according to the invention on the respective Use case, for example the width dimension the conveying surface to be cleaned, or the type of surface the conveyor area can be adjusted, for example by Roller brushes of different lengths, with different hardness, bristles of different lengths, etc., are kept ready.

In a further preferred embodiment, the roller brush has two sets of radial bristles of different lengths on, being shorter and longer in the longitudinal direction of the roller brush Bristles are arranged alternately.

As the escalator treads usually have longitudinal grooves are provided, this measure is particularly advantageous, because with the longer bristles the deepened gaps can be cleaned thoroughly while using the shorter bristles can efficiently clean the webs between the grooves.

In a further preferred embodiment, the roller brush attached to the carriage frame in a longitudinally adjustable manner. This measure has the advantage that the device with regard to their length dimension to the respective local Conditions of the continuous conveyor to be cleaned are adapted can.

In a further preferred embodiment, the drive means in operative connection with the brush means via a gear, the transmission having a gear ratio, that is less than 1.

The advantage here is that the speed of the drive means, for example, in the case of a friction wheel, the speed of the friction wheel, in a high rotation speed of the brush means can be implemented, whereby the cleaning effect of Brush means is further improved. The one from the continuous conveyor Decreased, predetermined kinetic energy can thus be converted into a correspondingly high rotational energy of the brush means implemented become.

In a further preferred embodiment, the device a dirt collector on the brush agent is arranged so that the brush means removed dirt thrown into the dirt collecting container becomes.

It is advantageous here that the one removed from the conveying surface Dirt can be caught in the dirt collecting container and can then be disposed of at the end of the cleaning process, whereby the ease of use of the device according to the invention is improved.

In a further preferred embodiment is on the dirt collector a connection for connecting a vacuum cleaner arranged.

The advantage here is that in the dirt collector collected dirt already during the cleaning process can be dissipated and it is avoided that the removed Dirt falls back onto the conveying surface.

In a further preferred embodiment, the device a means for fine spraying a cleaning liquid on the conveying surface during the cleaning process to moisten.

The advantage here is that by means of the cleaning liquid sticky dirt can also be removed from the conveying surface can. The cleaning liquid is only sprayed at rotating brush means and only to the extent that the conveying surface is moistened without cleaning liquid in the Drive mechanism of the continuous conveyor penetrates and this affected.

Further advantages result from the description below and the attached drawing.

It is understood that the above and those below Features still to be explained are not specified in the respective Combination, but also in other combinations or can be used alone, without the scope of to leave the present invention.

Fig. 1

eine Seitenansicht einer erfindungsgemäßen Vorrichtung zum Reinigen einer Förderfläche eines Stetigförderers im Betriebszustand, teilweise im Schnitt;

Fig. 2

die Vorrichtung in Fig. 1 in einer Draufsicht in einer teilweise aufgebrochenen und teilweise geschnittenen Darstellung;

Fig. 3

eine Seitenansicht einer erfindungsgemäßen Vorrichtung gemäß einem weiteren Ausführungsbeispiel in einer schematischen Darstellung; und

Fig. 4

die Vorrichtung in Fig. 3 in einer Draufsicht.

A selected exemplary embodiment is shown in the drawing and is described in more detail below with reference to the figures. Show it:

Fig. 1

a side view of an inventive device for cleaning a conveying surface of a continuous conveyor in the operating state, partially in section;

Fig. 2

the device in Figure 1 in a plan view in a partially broken and partially sectioned representation.

Fig. 3

a side view of an inventive device according to another embodiment in a schematic representation; and

Fig. 4

the device in Fig. 3 in a plan view.

In Figures 1 and 2 is one with the general reference number 10 provided device for cleaning a conveying surface 12 of a shown generally at 14 designated continuous conveyor. The continuous conveyor 14, which is only partially in Figures 1 and 2 is shown is an escalator or a Roller conveyor for the transportation of people. The device 10 is suitable themselves for cleaning treads from escalators and Roller tapes alike.

Of the continuous conveyor 14 is in Figures 1 and 2 in relation to the direction of movement indicated by an arrow 16 Conveying surface 12 end area shown. In the event of the escalator shown in Figures 1 and 2 can be an escalator be the top or bottom of the escalator, each whether the escalator is going up or down. The in Figures 1 and 2 shown section shows in the case of a Escalator more precisely the end area where the steps disappeared are and the conveying surface 12 forms a flat surface. The Conveying surface 12 runs at a location shown schematically 18 on the front edge of a fixed platform 19 of the continuous conveyor 14 into the ground and turns underground back to the other end.

Furthermore, the continuous conveyor 14 has a handrail 20 which with the conveying surface 12 periodically and at the same speed how the conveyor surface 12 rotates.

The device 10 is designed as a hand cart. The device 10 has a carriage frame 22. The carriage frame 22 has a box 24 which is closed on three sides and has an opening at the front end, which extends over the entire width of the box 24 extends. Box 24 is also closed on its end faces.

A through is on a rear side of the box 24 the box 24 extending cross member 26 attached. At both At the ends of the cross member 26, a wheel 28 or 30 is rotatable attached. The wheels 28 and 30 serve to move the device 10 to this for a cleaning use on the continuous conveyor 14 to move. The carriage frame 22 also has two arms 32 and 34 extending upward from box 24 on, each at its upper end a handle 36 or 38 wear. The device 10 can be operated by an operator to lead to the continuous conveyor 14 on the handles 36 and 38 are pushed on wheels 28 and 30, the The trolley is tilted slightly to the rear.

With the carriage frame 22 is one with the general reference number 40 provided stem of the device 10 connected.

The stem 40 has a brush means 42 in the form of a roller brush 44 on. The roller brush 44 is cylindrical and arranged horizontally. The roller brush 44 has radially protruding Bristles 46, a few of which are shown schematically in FIG. 2 are shown. The bristles 46 are along the entire length the roller brush 44 evenly and densely distributed over the circumference arranged. There are two different sets of bristles 46 a set of shorter bristles 46a and a set longer bristles 46b, the shorter bristles 46a and longer bristles 46b alternate in the longitudinal direction of the roller brush 44 are arranged.

The stem 40 of the device 10 also has a drive means 48 on that with a moving part of the continuous conveyor 14 is engageable to kinetic energy of decrease in operation continuous conveyor 14. The drive means 48 is designed as a rotating part, specifically as Friction wheel 50, which with the conveying surface 12 of the continuous conveyor 14, which moves translationally, can be brought into engagement, such as is shown in Fig. 1 and described in more detail below becomes.

The friction wheel 50 has an extensive, an intimate frictional Contact with the conveying surface 12 enables the jacket 52 on that on a steel rim or an unbreakable Plastic sits. The jacket 52 consists, for example Rubber.

The drive means 48 in the form of the friction wheel 50 stands with the Brush means 42 in the form of roller brush 44 via a gear 55 in operative connection. For this purpose, the friction wheel 50 sits on a drive shaft 56, which also carries a drive gear 58, the with the drive shaft 56 and thus with the friction wheel 50 rotatably connected is. With the drive gear 58 there is an output gear 50 intermeshing, which rotatably on an output shaft 62 sits on which the roller brush 44 is attached and is rotatably connected to it.

The diameters of the drive gear 58 and the driven gear 60 are chosen so that the gear ratio of the transmission 55 is less than 1 in the present embodiment is about 1: 3. This causes a full rotation of the friction wheel 50, the roller brush 44 three turns executes. The rotation speed of the roller brush 44 is accordingly higher than the rotational speed of the friction wheel 50, caused by the speed of movement under the friction wheel 50 continuous conveyor surface 12 is determined.

The gear 55 with the drive gear 58, the drive shaft 56, the output gear 60 and the output shaft 62 is in one Housing or cage 64 arranged via a sleeve 66th on a longitudinally extending support arm 68 in the longitudinal direction is slidably attached. The support arm 68 in turn protrudes into the box 24 of the carriage frame 22 and is there again attached to the cross member 26 by means of a further sleeve 70. The support arm 68 is on the cross member 26 in the transverse direction slidable between the wheels 28 and 30 of the carriage frame 22, and can be anywhere between wheels 28 and 30 be locked on the cross member 26.

Due to the displaceability of the housing 64 on the support arm 68 can the entire stem 40 from drive means 48 and brush means 42 in the longitudinal direction with respect to the carriage frame 22 are adjusted so that the total length of the device 10 the respective circumstances of the continuous conveyor 14 adapted can be.

Furthermore, the roller brush 44 is at least about a longitudinal axis 72 180 ° pivotable by the housing 64 together with the friction wheel 50, the gear 55 and the associated shafts 56 and 62 on the support arm 68 about the longitudinal axis of the support arm 68 is rotatably mounted.

The device 10 also has a dirt collecting container 74 on, which at least partially surrounds the roller brush 44 and before this is arranged, and which is used by the roller brush 44 to collect dirt removed from the conveying surface 12. The dirt collecting container 74 is by means of two support arms 76 and 78 attached to the carriage frame 22. The support arms 76 and 78 are on a further cross member 80, which is on the top of the box 24 is mounted along the cross member 80 slidably mounted. The cross member 80 extends in the transverse direction over the entire box 24.

The dirt collecting container 74 is on the support arms 76 and 78 removable by means of suitable fastening elements 82 or 84 the support arms 76 and 78 attached. The dirt collector 74 has two further fastening means on its upper side 86 and 88 so that the dirt container 74 in place by means of the fastening means 82 and 84, also by means of the fastening means 88 and 86 attached to the support arms 76 and 78, i.e. can be implemented in the transverse direction.

Furthermore, the support arms 76 and 78 are longitudinally displaceable on the Cross member 80 arranged in a sleeve 90 so that the position of the Dirt collecting container 74 in the longitudinal direction of the device 10 can be adjusted with respect to the position of the brush means 42 can.

Furthermore, the dirt collecting container 74 has a connection 92 in the form of a nozzle for connecting a not shown Vacuum cleaner.

The following is the handling and function of the device 10 described in more detail.

As already mentioned, the device 10 can be on the wheels 28 and 30 to the continuous conveyor 14, for example one Slide the escalator or an escalator. To push the Device 10 on wheels 28 and 30 becomes the entire device 10 kept slightly tilted back, what by the arms 32 and 34 acting as levers with little effort is easily possible, which makes the stem one by one Wheels 28 and 30 and the transverse axis 93 formed the cross member 26 is tilted upwards. The friction wheel 50 has then when pushing no contact with the ground, so that the roller brush 44 stands still.

As can be seen from Figures 1 and 2, the width of the carriage frame 22 smaller than the width of the conveying surface 12 between the handrails 20 of the continuous conveyor 14. that the width of the roller brush 44 is also smaller than that clear width between the handrails 20 and thus between the vertical walls of the continuous conveyor 14 is. The width of the However, roller brush 44 is larger than half the width of the conveying surface 12th

Once the device 10 is brought in place, the the device 10 slowly released, causing the stem 40 due to its own weight, down automatically around the Transverse axis 93 tilts. The friction wheel 50 comes in with Direction of arrow 16 moving conveyor surface 12 frictionally engaged. The wheels 28 and 30 lift slightly off the ground so that they are no longer in contact with the ground to have. Instead, the carriage frame 22 lies with the box 24 on the pedestal 19 and is due to the total weight the device 10 held immovable. The bottom of the box 24 is formed as a bearing surface 95 on the further an anti-slip covering is applied, so that the liability between the support surface 96 and the surface improved is.

The device 10 is positioned so that the roller brush 44 with its free, left in Fig. 2 end, as far as possible is located on the left edge of the conveyor surface 12. The area of intervention the roller brush 44 thus covers the entire left one Half and part of the right half of the conveying surface 12.

The conveyor surface 12 passing under the friction wheel 50 drives the friction wheel 50 in the direction of an arrow 94 in FIG. 1. about the gear 55 will rotate the roller brush 44 in the direction an arrow 96, i.e. in the opposite direction to the conveying surface 12. The now rotating roller brush 44 is removed Dirt from the conveying surface 12 and hurls it accordingly Arrows 98 in the dirt collecting container 74. With one on the Connection 92 connected vacuum cleaner can get the dirt be sucked off at the same time.

Depending on the degree of contamination of the conveying surface 12, the cleaning process can over a full or multiple full rounds of Conveyed area 12 are carried out. Once the left half the conveying surface 12, as shown in Fig. 2, cleaned sufficiently is, the device 10 is tilted backwards and moved out of the continuous conveyor 14. In the next step the dirt collector 74 is removed, after which the entire Stem 40 including the roller brush 44 around the Longitudinal axis 72 is pivoted through 180 °. After that it becomes necessary be the support arm 48 that holds the stem 40 of the right position shown in Fig. 2 in the left position to move on the cross member 26. Then will the dirt collecting container 74 again on the support arms 76 and 78 attached, and now by means of fasteners 86 and 88. After the dirt container 74 is reattached, the device 10 is retracted into the continuous conveyor 14, in such a way that now the free end of the roller brush 44 comes to rest on the right end of the conveying surface 12. After tilting the stem downwards you can now move it Trolley frame 22 the right half of the conveying surface 12, cleaned as previously described.

Several different roller brushes can be used for the device 10 44 are available and optionally on shaft 62 can be attached, for example. Roller brushes with different Degree of hardness of the bristles or different lengths be kept ready.

3 and 4 is a compared to the previous embodiment modified embodiment in some features a device 100 for cleaning a conveying surface 102 of a Continuous conveyor shown that differs from the previous one Embodiment of the device 10 in operation no difference.

The device 100 is in turn designed as a handcart has a carriage frame 104 to which a stem 106 is attached is, the stem 106 a drive means 108 in the form of a Friction wheels 110 and a brush means 112 here in the form of two Has roller brushes 114 and 115. The stem 106 continues to point a gear 116 on which a drive gear 118 and an output gear 120 includes.

The friction wheel 110 is as in the previous embodiment rotatably connected to the drive gear 118, while the drive gear 118 meshes with the driven gear 120, the again connected to the roller brushes 114 and 115 in a rotationally fixed manner is. The stem 106 differs from the stem 40 of FIG Device 10 essentially in that the drive means. 108 and the gear 116 with respect to the brush means 112, for example is arranged centrally to this. The width of the stem 106 in the area of the brush means 112 is smaller than the width the conveying surface 102.

The carriage frame 104 again has two wheels 122 and 124, on which the device 100 by an operator to the Site can be pushed by the cart frame 104 on arms 126 and 128 about a wheel axis 130 of wheels 122 and 124 is tilted backwards.

To lock the device 100 when cleaning the conveyor surface 102, the carriage frame 104 again has a support surface 132 on a bottom of a frame of the carriage frame 104, to which the arms 126 and 128 are attached is.

As shown in FIG. 3, the carriage frame 104 lies with its bearing surface 132 in operation on a fixed surface 136, For example, a platform in front of the start of the conveyor area 102 on, when resting the carriage frame 104 on the fixed Underground 136 the wheels 122 and 124 from the fixed Underground 136 are lifted off. This happens automatically when tilting the carriage frame 104 about the wheel axis 130 forward when parking the device 100.

In this embodiment, the carriage frame 104 also has two weights 138 and 140 on the frame 134 of the Carriage frame 104 are removably arranged. Weights 138 or 140 increase the contact pressure of the contact surface 132 on the fixed surface 136.

The stem 106 can be tilted about an articulation axis 142 on the carriage frame 104, namely on the frame 134 of the carriage frame 104, attached. More specifically, the stem 106 is over a housing 144 of the transmission 116 with the frame 134 of the carriage frame 104 tiltably connected about the hinge axis 142.

The inclination of the stem 106 relative to the frame 134 of the carriage frame 104 is adjustable. For this purpose, the frame 134 is over a threaded rod 146 is connected to the housing 144. By tightening or loosening an adjusting nut 148 on the threaded rod 146 the inclination of the stem 106 can be relative to the carriage frame Adjust 104 accordingly about hinge axis 142.

If, for example, the height difference between the fixed subsoil 136 and the conveying area 102 is large, can Threaded rod 146 of stem 106 with a greater inclination can be adjusted downward relative to the carriage frame 104.

The stem 106 again has a dirt container 150, which in turn has a connection 152 for connection a hose of a suction device.

The device 100 can be used without tools in the following Disassemble assemblies: into the carriage frame 104, from this the weights 138 and 140 can still be removed in the Gear 116 together with the friction wheel 110, the roller brushes 114 and 115 fastened with quick fasteners, and the dirt container 150. Furthermore, from the carriage frame 104 arms 126 and 128 can also be removed.

Claims (23)

Device for cleaning a conveying surface (12; 102) of a Continuous conveyor (14), in particular the tread surface of a Escalator or an escalator, with at least one Rotatable brush means (42; 112) for removal of dirt from the conveying surface (12; 102), thereby characterized in that at least one drive means (48; 108) for the brush means (42; 112) is provided, which with a moving part of the continuous conveyor (14) in Intervention can be brought, and the kinetic energy of the current Continuous conveyor (14) decreases, and that the drive means (48; 108) the one removed from the continuous conveyor (14) Kinetic energy on the brush means (42; 112) transmits, causing it to rotate. Device according to claim 1, characterized in that the drive means (48; 108) is designed as a rotating part is that the kinetic energy of one is essentially translatory moving part of the continuous conveyor (14) decreases. Device according to claim 1 or 2, characterized in that that the drive means (48; 108) at least one friction wheel (50; 110). Device according to one of claims 1 to 3, characterized in that that the drive means (48; 108) with the Conveying surface (12; 102) itself can be brought into engagement. Device according to one of claims 1 to 4, characterized in that that it is designed as a handcart, the to bring the device (10; 100) into place movable and lockable during the cleaning process is. Device according to one of claims 1 to 5, characterized in that that the drive means (48; 108) by spring force and / or by weight with the continuous conveyor (14) can be brought into engagement. Device according to claim 5 or 6, characterized in that that the drive means (48; 108) and / or the brush means (42; 112) on a stem (40; 106) of the handcart is arranged, which is about a rear transverse axis (93; 130) of the trolley can be tilted to the drive means (48; 108) and / or the brush means (42; 112) with the To bring continuous conveyor (14) into engagement. Apparatus according to claim 7, characterized in that a support surface (95; 132) is present that is considered essentially non-slip Rest on a fixed surface (136) in front of the Continuous conveyor (14) is used. Apparatus according to claim 8, characterized in that two wheels (28, 30; 122, 124) are arranged on the handcart which are used to push the device (10; 100) forward serve, the bearing surface (95; 132) with respect to Wheels (28, 30; 122, 124) is arranged so that by tilting the trolley around the transverse axis (93; 130) to the rear except the support surface (95; 132) with the substrate (136) Can be engaged and by tilting the wheels forward (28, 30; 122, 124) lift off the surface (136). Device according to one of claims 7 to 9, characterized in that that the stem (106) relative to the handcart is adjustable. Device according to one of claims 7 to 10, characterized in that that the stem (106) by means of a threaded rod (146) and an articulation with transverse to the handcart running joint axis (142) connected to the handcart is. Device according to one of claims 8 to 11, characterized in that that in the back of the handcart above the support surface (132) has at least one weight (138, 140) to increase the contact pressure of the contact surface (132) arranged on the fixed base (136) is. Apparatus according to claim 12, characterized in that the at least one weight (138, 140) from the handcart is removable. Device according to one of claims 1 to 13, characterized in that that the brush means (42 ,; 112) at least an approximately cylindrical designed lying Has roller brush (44; 114, 115) whose axis of rotation is transverse to the direction of movement of the conveying surface (12; 102). Device according to claim 14, characterized in that the drive means (48; 108) the roller brush (44; 114, 115) with respect to the direction of movement of the conveying surface (12; 102) drives in the opposite direction. Device according to claim 14 or 15, characterized in that that the roller brush (44) about a longitudinal axis (72) is pivotable at least 180 °. Device according to one of claims 14 to 16, characterized characterized in that the roller brush (44; 114, 115) is removable is, where appropriate several different Roller brushes are kept ready. Device according to one of claims 14 to 17, characterized characterized in that the roller brush (44; 114, 115) two Sets (46a, 46b) of radial bristles (46) different Has length, in the longitudinal direction of the roller brush (44) shorter and longer bristles (46) arranged alternately are. Device according to one of claims 7 to 18, characterized in that that the roller brush (44) on the trolley in Longitudinally adjustable is attached. Device according to one of claims 1 to 19, characterized in that that the drive means (48; 108) with the Brush means (42; 112) via a gear (55; 116) in Operational connection is established, the gear (55; 116) Gear ratio that is less than 1. Device according to one of claims 1 to 20, characterized in that that it has a dirt collecting container (74; 150) which, with respect to the brush means (42; 112) is arranged so that the brush means (42; 112) removed dirt in the dirt collecting container (74; 150) is thrown. Device according to claim 21, characterized in that a connection (92; 152) on the protective collecting container (74; 150) is arranged for connecting a vacuum cleaner. Device according to one of claims 1 to 22, characterized that they are a means of spraying a fine Has cleaning fluid around the conveying surface moisten during the cleaning process.

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