EP4590618A1 - Fahrsteig mit einer reinigungsvorrichtung - Google Patents
Fahrsteig mit einer reinigungsvorrichtungInfo
- Publication number
- EP4590618A1 EP4590618A1 EP23764646.8A EP23764646A EP4590618A1 EP 4590618 A1 EP4590618 A1 EP 4590618A1 EP 23764646 A EP23764646 A EP 23764646A EP 4590618 A1 EP4590618 A1 EP 4590618A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- brush
- moving walkway
- supporting structure
- conveyor chain
- arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
- B66B31/003—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning for cleaning steps or pallets
Definitions
- the present invention relates to a moving walkway which has a supporting structure and a pallet belt which is movably arranged all around in the supporting structure.
- Moving walks of the aforementioned type are well-known and efficient devices for transporting people. They are typically used for transporting people horizontally or at a slight incline of up to 12° from one part of a structure to another part of the structure.
- the pallet conveyor used to transport users is guided by guide rails arranged in the supporting structure and has two annularly closed conveyor chains and pallets arranged between them that connect the two conveyor chains.
- Each of the pallets includes a tread surface, with the pallet belt having a forward path that can be accessed by users and a return path that is hidden from users due to its circumferentially movable arrangement.
- the conveyor chains In order to keep energy losses and operating noise low, the conveyor chains must be lubricated. Excess lubricating oil is collected in oil collection channels which extend parallel to the conveyor chains and are arranged below each conveyor chain with respect to the intended position of use of the pallet belt.
- oil collection channels which extend parallel to the conveyor chains and are arranged below each conveyor chain with respect to the intended position of use of the pallet belt.
- the continuous lubrication of the conveyor chain inevitably leads to the lubricating oil flowing to the tread surface visible in the forward movement during operation of the moving walkway. This makes the pallet belt very unsightly and implies poor maintenance to the user.
- the lubricating oil can deface expensive footwear or luggage, or lubricating oil sticking to soles can lead to accidents due to slipping on smooth floors adjacent to the moving walkways.
- a cleaning device for cleaning tread surfaces is known from W ⁇ 2010/121331A1. Since there is no space in moving walkways to install such cleaning devices, the cleaning device is periodically installed in advance by maintenance personnel and the entire tread surface is cleaned by their brush mechanically cleaned. However, the moving walkway cannot be used during this time and periodic installation and removal is time-consuming and expensive. In addition, due to periodic use, it is not possible to reliably prevent lubricating oil from spreading on the tread surfaces.
- JP H0873172 A discloses a removal device of lubricating oil adhering to step axles of an escalator.
- each of the step axes has a drip ring on each side, where the lubricating oil collects and is wiped off by a stationary brush.
- the object of the present invention is to propose a cleaning device which can be produced and used cost-effectively and which reliably prevents the distribution of lubricating oil on the treads.
- a moving walkway which has at least one brush arrangement with a brush for each of the conveyor chains of its pallet conveyor.
- This brush arrangement is arranged in a fixed position in the supporting structure with regard to the intended position of use of the pallet belt in the return line and below the conveyor chain.
- Each of these brushes is in contact with the lateral edge areas of the tread surfaces.
- the lateral edge areas are strip-shaped partial areas of the tread surface that border on the conveyor chains.
- the brush arrangement has a receiving element with at least one guide element, the brush being attached to the receiving element.
- the guide element diverts lubricating oil that reaches the receiving element in a designated direction.
- the bristles of the brush arrangement do not cover the entire tread surface, but rather only a lateral edge region of the tread surface that borders each conveyor chain. Extensive tests have confirmed that the arrangement of the brush in the side edge area works excellently to effectively prevent the lubricating oil film from spreading over the tread surface. On the one hand, because this means that lubricating oil accumulations are continuously removed from the edge area and on the other hand also because lubricating oil adhering to the bristles of the brush is not absorbed by adjacent bristles and is applied to dry areas of the tread surface. In addition, due to their small dimensions, the brush arrangements can be easily accommodated in the return line on both sides of the pallet belt, so that they are in use continuously and not just periodically.
- the brush arrangement comprises a holder whose first end is firmly connected to the supporting structure and at whose second end the receiving element with the brush is attached.
- the holder has a telescopic device which is arranged between the first end and the second end. The distance between the brush and the tread surfaces of the pallet conveyor can be adjusted using the telescopic device.
- the brush arrangement has greater flexibility with regard to the selection of suitable fastening points in the supporting structure and the bristle pressure of the brush on the tread surface can be continuously adjusted.
- the wear of the bristles can be compensated for by periodically adjusting the telescopic device.
- the telescopic device can be implemented, for example, by a screw connection which is arranged between two components of the holder. At least one slot-shaped hole is formed in one of the two components, through which a screw of the screw connection protrudes in the assembled state.
- the slot-shaped hole of the telescopic device extends in a plane which is arranged orthogonally to the plane in which the slot-shaped fastening hole extends.
- the receiving element is preferably arranged in the moving walkway in its intended installation position inclined towards an oil collection channel of the moving walkway. This supports the flow of lubricating oil stripped off the brush into the oil collecting channel, so that only small amounts of lubricating oil remain on the brush.
- the brush arrangement has a clamping device with which the brush is releasably connected to the receiving element. This means that a worn brush can be removed and a new brush installed in just a few steps.
- the moving walkway includes at least one lubricant dispensing device for each conveyor chain.
- the lubricant dispensing device is arranged stationary in the supporting structure in the return line above the conveyor chain and delivers the lubricating oil to the conveyor chain via bristles. Due to gravity, the lubricating oil flows to the lower edge of the conveyor chain, with excess lubricating oil forming drops on the lower edge and dripping into the oil collection channel.
- the brush arrangement assigned to the conveyor chain is preferably arranged in the area of the lubricant dispensing device.
- the conveyor chain is thus carried out between the lubricant dispensing device and the brush arrangement.
- “In the area” does not necessarily mean that the brush of the brush arrangement must be arranged exactly vertically below the lubricant dispensing device.
- the brush arrangement can also be arranged with an offset in the direction of travel of the conveyor chain, whereby the length of the Offset can be tailored to the flow speed (viscosity) of the lubricating oil, to the distance to be covered (height of the conveyor chain) and to the conveying speed of the conveyor chain.
- a moving walkway can also have more than one brush arrangement per conveyor chain.
- Figure 1 schematically, a partial cross section of a moving walkway with a pallet belt with pallets that can be moved around and is guided by guide rails, with a brush arrangement being provided for cleaning edge areas of the pallets;
- Figure 2 enlarged, the section A marked in Figure 1;
- Figure 3 the brush arrangement shown in Figures 1 and 2 in a three-dimensional view.
- Figure 1 shows schematically a partial cross-section of a moving walkway 1. This corresponds in its basic structure to known moving walkway constructions, which is why only just under a quarter of the actual cross-section of the moving walkway 1 is shown in the partial cross-section.
- Figure 2 shows the section A designated in Figure 1 in an enlarged view, which is why the two figures are described together below.
- the moving walkway 1 has a supporting structure 3 as a supporting structure, in which guide rails 5, 7 are mounted.
- the guide rails 5, 7 guide a pallet belt 11 which is arranged in a circumferentially movable manner in the supporting structure 3.
- This has two annularly closed conveyor chains 13 (only one of the two conveyor chains 13 is because of the partial Cross section shown), which are arranged parallel to one another and spaced apart from one another in the supporting structure 3.
- the conveyor chains 13 are link chains made of steel, on the chain hinge pins 15 of which rollers 17 are also rotatably mounted.
- the rollers 17 run on the guide rails 5, 7 and support the pallet belt 11 on these.
- the rollers 17 are arranged between the chain links 19 of the conveyor chain 13.
- conveyor chains 13 can also be used, in which the rollers 17 are arranged on the side of the chain links 19.
- the pallet belt 11 has a plurality of pallets 21 arranged one behind the other, which are arranged between the conveyor chains 13 and connect the two conveyor chains 13 to one another.
- Each of the pallets 21 includes a tread surface 23. Due to its circumferentially movable arrangement, the pallet belt 11 has a forward path 25 that can be accessed by users 99 and a return path 27 that is hidden from users 99.
- At least one lubricant dispensing device 31 for lubricating the conveyor chain 13 is present in the moving walkway 1.
- the lubricant dispensing device 31 is fastened in the return line 27 of the pallet belt 11 and, with regard to the intended position of use of the pallet belt 11, above the conveyor chain 13 in the supporting structure 3.
- the moving walkway 1 also has at least one brush arrangement 41 with a brush 43 for each of the conveyor chains 13.
- the brush arrangement 41 is arranged in a stationary manner in the supporting structure 3 with regard to the intended position of use of the pallet belt 11 in the return 27 and below the conveyor chain 13.
- the brush 43 is in contact with those lateral edge regions 45 of the tread surfaces 23 which adjoin the conveyor chain 13 assigned to this brush 43.
- the accumulating lubricating oil 91 see in particular FIG. 2 is continuously removed in these edge regions 45 by the brush arrangement 41, it cannot spread to the remaining tread surface 23.
- the brush arrangement 41 is arranged in the area of the lubricant dispensing device 31, with the conveyor chain 13 between the lubricant dispensing device 31 and the brush arrangement 41 is carried out.
- the brush arrangement 41 comprises a holder 47, the first end 48 of which is firmly connected to the supporting structure 3 and the brush 43 is attached to the second end 49 of the holder.
- the holder 47 has a telescopic device 51 which is arranged between the first end 48 and second end 49. By means of the telescopic device 51, a distance S between the brush 43 and the tread surfaces 23 of the pallet conveyor 11 can be adjusted.
- the distance S between a brush body 46 of the brush 43 and the tread surface 23 must be adjusted, since the bristles 44 of the brush 43 should have a predefined contact pressure and thus theoretically a predefined overlap (indicated accordingly in FIG. 2). In fact, the bristles 44 of course do not protrude into the body of the pallets 21, but rather bend out in accordance with the direction of movement of the pallet belt 11.
- an oil collecting channel 53 is arranged, which extends in the return 27 parallel to the longitudinal direction of the conveyor chain 13.
- the oil collecting channel 53 is made of thin sheet metal and is held stationary in the supporting structure 3 by spring clips 55.
- FIG. 3 shows the brush arrangement 41 shown in FIGS. 1 and 2 in a three-dimensional view.
- a receiving element 61 for the brush 43 is arranged at the second end 49 of the holder 47. In its intended installation position, the receiving element 61 is inclined towards the oil collecting channel 53 of the moving walkway 1 (see also Figures 1 and 2) in order to support the outflow of the lubricating oil 91 wiped off by the brush 43 into the oil collecting channel 53. Due to this arrangement, the receiving element 61 has a higher edge 63 and a lower edge 65 with regard to its installation position.
- the brush 43 can have flow channels 42 in its brush body 46, so that the lubricating oil 91 can flow even better from the direction of the higher edge 63 to the lower edge 65 of the receiving element 61 and drip there into the oil collecting channel 53.
- the receiving element 61 also has guide elements 67, 68, which guide the lubricating oil 91 in a designated direction towards the lower edge 65 of the receiving element 61.
- the brush arrangement 43 has a clamping device 69, with which the brush 43 or its brush body 46 is detachably connected to the receiving element 61. This means that a brush 43 with worn bristles 44 can be easily replaced with a new brush 43 during maintenance work.
- the telescopic device 51 mentioned above is formed by a screw connection 71 which is arranged between two components 77, 78 of the holder 47.
- a screw connection 71 which is arranged between two components 77, 78 of the holder 47.
- at least one slot-shaped hole 73 is formed in one of the two components 77, through which a screw of the screw connection 71 protrudes in the assembled state.
- At least one slot-shaped fastening hole 75 is formed on the first end 48 of the holder 47, in which at least one fastening screw 76 (see Figures 1 and 2) which can be connected to the supporting structure 3 is arranged protruding through.
- the position of the holder 43 relative to the supporting structure 3 can be adjusted in a range specified by the slot-shaped fastening hole 75.
- the slot-shaped hole 73 of the telescopic device 51 extends in a plane which is arranged orthogonally to the plane in which the slot-shaped fastening hole 75 extends .
- the width of the 45 can be varied through the slot-shaped fastening hole 75, as can be seen in FIG.
- the brush arrangement 41 can also be arranged with an offset in the running direction of the conveyor chain 13 (in Figures 1 and 2 this runs orthogonally to the plane of the drawing), the length of the offset being based on the flow speed (viscosity) of the lubricating oil, on the distance to be covered (height the conveyor chain 13) and can be coordinated with the conveying speed of the conveyor chain 13.
- the moving walkway 1 is intended for two running directions, for example there can be two brush arrangements 41 per conveyor chain 13, which are arranged with a corresponding offset, before and after the lubricant dispensing device 31, with respect to the two running directions of the conveyor chain 13.
- Holding structures that can be fixed in defined positions, such as lockable linear guides, rod frames with lockable joint nodes and the like, can be used to adjust the correct position of the brush 43 to the tread surfaces 23 of the pallets 21.
- rigid holders 47 can also be used, which have no adjustment option at all.
Landscapes
- Escalators And Moving Walkways (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22196452 | 2022-09-20 | ||
| PCT/EP2023/074109 WO2024061597A1 (de) | 2022-09-20 | 2023-09-04 | Fahrsteig mit einer reinigungsvorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4590618A1 true EP4590618A1 (de) | 2025-07-30 |
| EP4590618B1 EP4590618B1 (de) | 2026-05-06 |
Family
ID=83398410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23764646.8A Active EP4590618B1 (de) | 2022-09-20 | 2023-09-04 | Fahrsteig mit einer reinigungsvorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4590618B1 (de) |
| AU (1) | AU2023346039A1 (de) |
| WO (1) | WO2024061597A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3081111B2 (ja) | 1994-09-02 | 2000-08-28 | 三菱電機ビルテクノサービス株式会社 | エスカレータの油汚れ防止装置 |
| JPH11217177A (ja) | 1998-02-03 | 1999-08-10 | Hitachi Ltd | 乗客コンベアの踏み段清掃装置 |
| AU2009201644A1 (en) | 2009-04-25 | 2010-11-11 | Sutherland, Rex John Mr | Improved Cleaning Apparatus & Method For Escalator Or Moving Walkway |
| CN113003367B (zh) * | 2021-03-25 | 2024-04-26 | 杭州西奥电梯有限公司 | 一种无底坑自动人行道 |
-
2023
- 2023-09-04 EP EP23764646.8A patent/EP4590618B1/de active Active
- 2023-09-04 AU AU2023346039A patent/AU2023346039A1/en active Pending
- 2023-09-04 WO PCT/EP2023/074109 patent/WO2024061597A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU2023346039A1 (en) | 2025-03-13 |
| WO2024061597A1 (de) | 2024-03-28 |
| EP4590618B1 (de) | 2026-05-06 |
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