EP3966149A1 - Système de transport d'un escalier roulant - Google Patents

Système de transport d'un escalier roulant

Info

Publication number
EP3966149A1
EP3966149A1 EP20723401.4A EP20723401A EP3966149A1 EP 3966149 A1 EP3966149 A1 EP 3966149A1 EP 20723401 A EP20723401 A EP 20723401A EP 3966149 A1 EP3966149 A1 EP 3966149A1
Authority
EP
European Patent Office
Prior art keywords
rollers
conveying system
guide rail
chain
step chain
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.)
Pending
Application number
EP20723401.4A
Other languages
German (de)
English (en)
Inventor
José Ojeda Arenas
Mónica Díaz Sorribas
Sandra Gil Coto
Aurelio CASTAÑO LANTERO
Ana Belén QUIROGA SÁNCHEZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TK Escalator Norte SA
Original Assignee
TK Elevator Innovation Center SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TK Elevator Innovation Center SA filed Critical TK Elevator Innovation Center SA
Publication of EP3966149A1 publication Critical patent/EP3966149A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B66B23/024—Chains therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/14—Guiding means for carrying surfaces
    • B66B23/147—End portions, i.e. means for changing the direction of the carrying surface

Definitions

  • the invention relates to a conveying system of an escalator comprising a lower transition area at the lower end of the escalator, an upper transition area at the upper end of the escalator and a step chain, wherein the step chain comprises a plurality of chain links and inner rollers.
  • the conveying system comprises a plurality of steps, wherein each step is connected to the step chain via at least a first supporting point on each side of the step.
  • Each step comprises a tow roller.
  • the conveying system comprises a tow roller guide rail to guide the tow rollers of the steps.
  • a typical escalator comprises a lower transition area at the lower end of the escalator and an upper transition area at the upper end of the escalator, wherein in the transition areas the steps of the escalator are turned around.
  • T o provide enough space for a turnaround of the steps the escalator reguires a pit of approximately 1 meter in depth.
  • the objective task of the invention is to provide a conveying system for an escalator to reduce the pit size of an escalator.
  • the construction of the escalator should be simple and should not reguire high costs.
  • the construction of a typical escalator should not be changed in large parts, so a large part of standard components can be used.
  • the solution of the problem provides a conveying system of an escalator comprising a lower transition area at the lower end of the escalator, an upper transition area at the upper end of the escalator and a step chain, wherein the step chain comprises a plurality of chain links and inner rollers.
  • the conveying system comprises a plurality of steps, wherein each step is connected to the step chain via at least a first supporting point on each side of the step and comprises a tow roller.
  • the conveying system comprises a tow roller guide rail to guide the tow rollers of the steps.
  • the step chain is guided by the inner rollers in the conveying system except of the lower transition area and the upper transition area. This means that the step chain is exclusively guided by the inner rollers but not by the outer rollers in the conveying system excluding the lower transition area and the upper transition area.
  • This embodiment is making the step chain has a short pitch.
  • the step chain is guided both by the inner rollers and outer rollers, advantageously making the step chain has a long pitch.
  • the step chain is advantageously always extended and moving at constant speed.
  • the steps can advantageously turn in a reduced space without colliding between them.
  • the step chain comprises outer rollers, wherein the outer rollers are adjusted to the chain links of the step chain.
  • a ratio between the outer rollers and the chain links is l :n, wherein n>l , especially ⁇ n e Q
  • the outer rollers are guided within an outer guide rail.
  • outer rollers are adjusted to the step chain at connection points connecting two adjacent chain links.
  • the ratio between the outer rollers and the chain links is 1 :2, wherein one of the outer rollers is adjusted to every second chain link.
  • the step chain has to be guided in a turn. Thereat, a polygon effect occurs.
  • the ratio between the outer rollers and the chain links is l :n, wherein n>l.
  • one of the inner rollers is adjusted at every connection point of two adjacent chain links.
  • the conveying system comprises an inner guide rail at the lower transition area as well as at the upper transition area to guide the inner rollers of the step chain during a turnaround of the step chain.
  • the outer guide rail and the inner guide rail are constructed such as during a turnaround the outer rollers contact an inner face of an outer edge of the outer guide rail.
  • the half of the inner rollers contact the inner guide rail.
  • every second inner roller of the step chain contact the inner guide rail.
  • the outer rollers are guided along the inner face of the outer edge of the outer guide rail.
  • the outer rollers are adjusted to the step chain at connection points connecting two adjacent chain links and by guiding the outer rollers along the inner face of the outer edge of the outer guide rail during the turnaround, the inner rollers adjusted to the same connection points as the outer rollers do not contact the inner guiderail, which inner guide rail is of a smaller curve radius than the outer guide rail. In that way the number of edges of the polygon formed by the step chain in the turnaround is reduced and therefore, the turning radius of the step chain can be reduced.
  • the steps of the conveying system comprise a tread and a riser.
  • the riser and the tread of the steps are connected to each other via a hinge.
  • the steps are configured to be folded at least during a turnaround. Especially, the steps are configured to be folded via the hinge.
  • a usage of foldable steps in the conveying system according the invention the turning radius in the transition areas of the escalator can be reduced enormously.
  • Fig. 1 in a schematic diagram the state of the art of a typical conveying system of an escalator
  • Fig. 2a in a schematic diagram a guidance of the step chain in a transition area of a conveying system according the invention in a side view;
  • Fig. 2b in a schematic diagram a guidance of the step chain in a transition area of a conveying system according the invention in a turned side view;
  • Fig. 3 in a schematic diagram a guidance of the step tow rollers in a transition area of the conveying system according the invention.
  • Fig. 4 in a schematic diagram a front view of Fig. 3.
  • Fig. 1 shows a schematic diagram showing the state of the arte of a typical conveying system 100 of an escalator.
  • the conveying system 100 of the escalator comprises an upper transition area 101 in the upper end of the escalator and a lower transition area 102 in the lower end of the escalator.
  • the conveying system 100 comprises a step chain 110.
  • the step chain 110 is driven by a drive gear 104.
  • the step chain is guided by a gearwheel 105 at the lower end of the escalator and a gearwheel 105 at the upper end of the escalator. Thereat, the gearwheels 105 join in between the inner rollers 112 of the step chain 110.
  • the conveying system comprises a plurality of steps 120, wherein each step is connected to the step chain 110 via at least a first supporting point on each side of the step. The steps 120 are moved by the step chain 110 and turned around in the transition areas 101, 102.
  • Each step 120 of the conveying system 100 comprises a tow roller 121.
  • the tow roller 121 of the step 120 is guided by a tow roller guide rail 103.
  • the tow roller 121 When the steps 120 are to transport persons, the tow roller 121 is guided over the outer side of the upper part of the tow roller guide rail 103’. When the steps 120 are returned, the tow roller 121 is guided over the inner side of the lower part of the tow roller guide rail 103”.
  • the radius of the turnaround of the steps 120 in the transition areas 101, 102 is given by the height and the width of the steps 120.
  • the height is defined by the riser of the step and the width is defined by the tread of the step.
  • Fig. 2a and Fig. 2b show the guidance of the step chain 110 in a transition area of a conveying system 100 according to the invention out of two different directions.
  • the step chain 110 comprises a plurality of chain links 111. At each connection point connecting two adjacent chain links 111 to each other there is an inner roller 112 adjusted within the step chain 110. Further, at every second connection point an outer roller 113 is adjusted to the outer side of the step chain 110.
  • the outer rollers 113 are guided within an outer guide rail 106 of the conveying system 100.
  • the inner rollers 112 of the step chain 110 are guided around a curved inner guide rail 107. Thereat, the turning radius of the inner guide rail 107 is smaller than the turning radius of the outer guide rail 106.
  • the outer rollers 113 of the step chain 110 are pressed to the inner surface of the outer edge of the outer guide rail 106. Conseguently, the inner rollers 112 adjusted to the same connection points as those outer rollers 113 are not guided by the inner guide rail 107 during the turnaround. At the same time, the other inner rollers 112 adjusted to the connection points to which no outer roller 113 is adjusted to, are in contact with the inner guide rail 107 during the turnaround.
  • the step chain (110) is guided by the inner rollers (112) in the conveying system (100) [except in the lower (102) and upper (101) transition area] making the step chain (110) has a short pitch.
  • the step chain (110) is guided both by the inner rollers (112) and outer rollers (113) making the step chain (110) has a long pitch.
  • the step chain (110) is always extended and moving at constant speed.
  • the steps (120) can turn in a reduced space without colliding between them.
  • the outer guide rail 106 as well as the inner guide rail 107 are constructed as a frame in the transition area.
  • the outer guide rail 106 and the inner guide rail 107 are fastened at least indirectly to the escalator supporting construction via fastening elements 108.
  • the tow rollers 121 of the steps 120 are guided by the tow roller guide rail 103.
  • the tow roller guide rail 103 describes a closed curved guide rail.
  • the turning radius of the tow roller guide rail 103 is smaller than the turning radius of the inner guide rail 107.
  • Fig. 4 shows a front view of Fig. 3.
  • the outer guide rail 106 guiding the outer rollers 113 of the step chain 110 has a larger turning radius than the inner guide rail 107 guiding the inner rollers 112 of the step chain 120.
  • the inner guide rail 107 has a larger turning radius than the tow roller guide rail 103 guiding the tow rollers 121 of the steps 120.
  • the outer guide rail 106, the inner guide rail 107 and the tow roller guide rail 103 are arranged in different levels to each other. Additionally, the vertical projections of the outer guide rail 106, the inner guide rail 107 and the tow roller guide rail 103 differ from each other at least partially.

Landscapes

  • Escalators And Moving Walkways (AREA)

Abstract

L'invention concerne un système de transport (100) d'un escalier roulant comprenant une zone de transition inférieure (102) à l'extrémité inférieure de l'escalier roulant, une zone de transition supérieure (101) à l'extrémité supérieure de l'escalier roulant et une chaîne de marches (110), la chaîne de marches (110) comprenant une pluralité de maillons de chaîne (111) et de rouleaux internes (112). En outre, le système de transport (100) comprend une pluralité de marches (120), chaque marche (120) étant reliée à la chaîne de marches (110) par l'intermédiaire d'au moins un premier point d'appui de chaque côté de la marche (120), et chaque marche (120) comprenant un rouleau de traction (121). En outre, le système de transport (100) comprend un rail de guidage de rouleau de traction (103) pour guider les rouleaux de traction (121) des marches (120). En particulier, la chaîne de marches (110) comprend des rouleaux externes (113), les rouleaux externes (113) étant adaptés aux maillons de chaîne (111) de la chaîne de marches (110), les rouleaux externes (113) étant guidés à l'intérieur d'un rail de guidage externe (106).
EP20723401.4A 2019-05-06 2020-05-04 Système de transport d'un escalier roulant Pending EP3966149A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19382336.6A EP3736240A1 (fr) 2019-05-06 2019-05-06 Système de transport d'un escalier roulant
PCT/EP2020/062246 WO2020225178A1 (fr) 2019-05-06 2020-05-04 Système de transport d'un escalier roulant

Publications (1)

Publication Number Publication Date
EP3966149A1 true EP3966149A1 (fr) 2022-03-16

Family

ID=66529930

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19382336.6A Withdrawn EP3736240A1 (fr) 2019-05-06 2019-05-06 Système de transport d'un escalier roulant
EP20723401.4A Pending EP3966149A1 (fr) 2019-05-06 2020-05-04 Système de transport d'un escalier roulant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19382336.6A Withdrawn EP3736240A1 (fr) 2019-05-06 2019-05-06 Système de transport d'un escalier roulant

Country Status (3)

Country Link
EP (2) EP3736240A1 (fr)
CN (1) CN113795451A (fr)
WO (1) WO2020225178A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020132019A1 (de) 2020-12-02 2022-06-02 Tk Elevator Innovation And Operations Gmbh Sicherheitsvorrichtung für eine Fahrtreppe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1043542A (en) * 1910-03-16 1912-11-05 Otis Elevator Co Conveyer.
DE3764391D1 (de) * 1986-02-07 1990-09-27 Inventio Ag Fahrtreppe mit veraenderlichen fahrgeschwindigkeiten.
JP2001192194A (ja) * 1999-10-25 2001-07-17 Toshiba Elevator Co Ltd 乗客コンベヤ装置
JP4688276B2 (ja) * 2000-11-09 2011-05-25 東芝エレベータ株式会社 乗客コンベア装置
JP5355689B2 (ja) * 2009-05-20 2013-11-27 三菱電機株式会社 コンベア装置
EP3231761B1 (fr) * 2016-04-15 2019-02-20 Otis Elevator Company Convoyeur à palettes
EP3231760A1 (fr) * 2016-04-15 2017-10-18 Otis Elevator Company Modules de fixation et palettes pour un convoyeur de palette
CN109715545B (zh) * 2016-09-06 2020-08-21 弗兰克·M·圣塞维罗 具有垂直竖板及侧面护板的电扶梯系统

Also Published As

Publication number Publication date
CN113795451A (zh) 2021-12-14
WO2020225178A1 (fr) 2020-11-12
EP3736240A1 (fr) 2020-11-11

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