EP3736241A1 - Fördersystem einer rolltreppe - Google Patents

Fördersystem einer rolltreppe Download PDF

Info

Publication number
EP3736241A1
EP3736241A1 EP19382337.4A EP19382337A EP3736241A1 EP 3736241 A1 EP3736241 A1 EP 3736241A1 EP 19382337 A EP19382337 A EP 19382337A EP 3736241 A1 EP3736241 A1 EP 3736241A1
Authority
EP
European Patent Office
Prior art keywords
riser
supporting point
escalator
transition area
tread
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
Application number
EP19382337.4A
Other languages
English (en)
French (fr)
Other versions
EP3736241B1 (de
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
ThyssenKrupp 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 ThyssenKrupp Elevator Innovation Center SA filed Critical ThyssenKrupp Elevator Innovation Center SA
Priority to EP19382337.4A priority Critical patent/EP3736241B1/de
Priority to CN202080034069.XA priority patent/CN113784909A/zh
Priority to EP20720913.1A priority patent/EP3966150A1/de
Priority to PCT/EP2020/062010 priority patent/WO2020225084A1/en
Publication of EP3736241A1 publication Critical patent/EP3736241A1/de
Application granted granted Critical
Publication of EP3736241B1 publication Critical patent/EP3736241B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/14—Guiding means for carrying surfaces
    • B66B23/147—End portions, i.e. means for changing the direction of the carrying surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/08—Carrying surfaces
    • B66B23/12—Steps

Definitions

  • each step comprises a riser, a tread, a hinge connecting the riser and the tread, a tow roller, and at least a first supporting point and a second supporting point on each side of the step, wherein at the first supporting point the step is connected to the step chain. Further, each step is configured to be folded via the hinge at least during a turnaround in the transition area.
  • the invention relates to a conveying system of an escalator and a process to turnaround a step within a conveying system.
  • An escalator as known from the state of the art comprises a lower transition area at the lower end of the escalator, an upper transition area at the upper end of the escalator and a transporting area in between the lower and the upper transition area, wherein in the transition areas the steps of the escalator are turned around.
  • the escalator requires a pit of approximately 1 meter in depth.
  • the EP 1 072 552 A1 discloses a conveying system constructed to reduce the depth of the pit in the lower transition area and the upper transition area of an escalator. Thereat, the steps of the conveying system are folded. In the transition areas, the steps are not turned around but guided in a way, that at any position the tread of a step faces upwards. By doing so, the depth of the pit can be reduced, but by guiding the steps in a way, that the tread of a step always faces upwards leads to an enormous increasing of the length of the pit.
  • the objective task of the invention is to provide a conveying system for an escalator to reduce the depth of the pit of an escalator without increasing the length of the pit.
  • the construction of the escalator should be simple and should not require 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.
  • each step comprises a riser, a tread, and a hinge connecting the riser and the tread. Further, each step comprises a tow roller, at least a first supporting point, and a second supporting point on each side of the step. At the first supporting point, the step is configured to be connected to a step chain of the escalator. Further, each step is configured to be folded via the hinge at least during a turnaround in a transition area of the escalator.
  • the riser of each step comprises at least a curved sliding guide to guide the riser in a predetermined curve while folding the step, especially while folding the step during the turnaround.
  • the tow roller is adjusted to the step at the second supporting point the step. Via the tow roller, the step is guided circulating along a tow roller guide of the conveying system.
  • the step is configured to be connected to the step chain in a fixed manner at the first supporting point.
  • each step comprises a third supporting point.
  • the step is configured to be connected via a riser shaft to the step chain in a lose manner. This lose connection of the step to the step chain via the riser shaft enables a controlled folding of the step, wherein the riser is folded towards the tread.
  • the supporting points of the step are arranged at each side of the step.
  • the first supporting point is arranged at a front edge of the tread.
  • the second supporting point is arranged in a mid-region of the tread.
  • the third supporting point is arranged at the riser, wherein the riser is arranged at a rear edge of the tread.
  • the third supporting point is arranged at each side of the step and in a mid-region of the step width.
  • the riser shaft comprises a wheel.
  • the wheel is configured to roll within the curved sliding guide of the riser.
  • the riser shaft is arranged within the curved sliding guide of the riser.
  • the wheel adjusted to the riser shaft enables a frictionless sliding during folding of the step.
  • the riser shaft is configured to be connected to the step chain via a special fitting.
  • the fitting comprises especially a threaded fixed to the step chain and a connecting nut, fitting on the threaded. This fitting enables a quick and easy mounting and dismounting of the step to the step chain.
  • the riser comprises a riser stiffener.
  • the riser stiffener is arranged at the lower edge of the riser.
  • the riser stiffener has the function to make the riser of the step more rigid to avoid a damage of the riser and thus an appearance of a gap between adjacent steps due to a damage.
  • the thickness of the riser can be increased to prevent a damage of the riser.
  • the solution of the problem further provides a conveying system of an escalator, wherein the conveying system comprises a transition area, a step chain, and a plurality of steps.
  • the steps are connected to the step chain in a fixed manner at a first supporting point.
  • the steps are connected via a riser shaft to the step chain in a lose manner at a third supporting point.
  • the riser shaft connected to the step chain via a special fitting as described above.
  • the step chain comprises inner rollers and outer rollers.
  • an outer roller is adjusted to the step chain at least at the first supporting point of each step.
  • the inner rollers and outer rollers are guided in a precision guide rail.
  • the inner rollers are guided along an inner roller running surface of the precision guide rail.
  • the outer rollers are spaced to an outer roller running surface of the precision guide rail.
  • at least an outer roller gets in contact with the outer roller running surface in case of a rotation of a step.
  • the tow rollers adjusted to the second supporting point of the steps are guided by the precision guide rail.
  • the solution of the problem further provides a process to turnaround a step configured as described above within a conveying system as described above, wherein for turnaround the step in the transition area the riser is fold towards the lower side of the tread via the hinge.
  • the riser is guided in a predetermined curve defined by the curved sliding guide of the riser.
  • the riser is turned around the riser shaft, wherein the wheel of the riser shaft rolls within the curved sliding guide.
  • the step is connected to the step chain at the first supporting point in a fixed manner and at the third supporting point the step is connected to the step chain in a lose manner via the riser shaft. Due to the step chain trajectory during the turnaround within the transition area and the riser shaft sliding in the curved sliding guide, the riser of the step is fold automatically towards the lower side of the tread while entering into the turnaround.
  • the riser is guided in the predetermined curve defined by the curved sliding guide. Especially the riser shaft slides within the curved sliding guide.
  • the riser of each step comprises at least a curved sliding guide to guide the riser in a predetermined curve while folding the step enables a turnaround in the transition area of an escalator with a very small turning radius, wherein the riser is kept in a controlled distance to an adjacent step during the folding and unfolding of the step.
  • most components of a typical escalator does not need to be changed when using the steps according the invention.
  • Fig. 1 shows a schematic diagram of a conveying system 10 in the lower end of an escalator according the invention.
  • the conveying system 10 comprises a transition area 11, a step chain 12 and a plurality of steps 20.
  • the steps 20 of the escalator are turned around.
  • Each step 20 comprises a tread and a riser, wherein the tread and the riser are connected to each other via a hinge see Fig. 2 .
  • the steps 20 When leaving a transporting area of the escalator and entering the transition area 11 at one end of the escalator the steps 20 are guided in a way, so the treads of the steps 20 are in a plane before they are turned around to be returned to the other end of the escalator.
  • Each step 20 is configured to be folded via the hinge at least during a turnaround in the transition area 11.
  • the riser of a step is folded towards the lower side of the tread of the step.
  • the turning radius can be reduced. Accordingly, the depth of the escalator pit can be reduced.
  • Fig. 2a and Fig. 2b show a step of the conveying system of Fig. 1 .
  • Fig. 2a shows the step 20 in a transporting configuration, wherein the step 20 is unfolded.
  • Fig. 2b shows the step 20 in a folded state.
  • the step 20 comprises a tread 21, a riser 22 and a hinge 23 connecting the tread 21 and the riser 22 to one another.
  • Fig. 3a to Fig. 3d show a detailed view of the steps 20. Thereat, Fig. 3a and Fig. 3b show the steps 20 from an upper side while Fig. 3c and Fig. 3d show the steps 20 from a lower side.
  • Each step 20 comprises a first supporting point 24 and a second supporting point 25 on each side of the step.
  • the step 20 is connected to the step chain 12 in a fixed manner.
  • a tow roller 251 is adjusted to the step 20.
  • the riser 22 of each step 20 comprises at least a curved sliding guide 221.
  • the curved sliding guide 221 is configured to guide the riser 22 in a predetermined curve while folding the step 20 during the turnaround in the transition area.
  • the shape of the curved sliding guide 221 is adapted such that a controlled distance is kept between the riser 22 and the adjacent step 20 during the turnaround. In that way, collisions are avoided between adjacent steps 20 during the turnaround.
  • each step 20 comprises a third supporting point 26, wherein at the third supporting point 26, the step 20 is connected via a riser shaft 261 to the step chain 12 in a lose manner.
  • the riser shaft 261 comprises a wheel 262, wherein the wheel 262 is configured to roll within the curved sliding guide 221 of the riser 22.
  • the step chain 12 comprises inner rollers 121 and outer rollers 122.
  • the inner rollers 121 and outer rollers 122 are guided in a precision guide rail (see Fig. 4a and Fig. 4b ).
  • Fig. 4a and Fig. 4b show a detailed view of the first supporting point 24 of a step 20.
  • Fig. 4a shows a detailed view of the connection of the outer roller 122 and inner roller 121 to the first supporting point 24 of the step 20.
  • Fig. 4b shows a detailed view of the guidance of the inner roller 121 and outer roller 122 of the step chain 12, as well as the guidance of the tow roller 251 of the step 20.
  • an outer roller 122 is adjusted to the step chain 12.
  • the inner rollers 121 and outer rollers 122 of the step chain 12 are guided in a precision guide rail 13. Thereat, the inner rollers 121 are in contact with the inner roller running surface 131.
  • the outer rollers 122 are spaced to the outer roller running surface 132.
  • the tow roller 251 adjusted to the second supporting point 25 of the step 25 is guided by the precision guide rail 13.
  • the tow roller 251 is in contact with the inner roller running surface 131.
  • Fig. 5 shows a closer view of Fig. 3c .
  • the riser 22 of each step 20 comprises a riser stiffener 222.
  • the riser stiffener 222 has the function to make the riser 22 of the step 20 more rigid to avoid a damage of the riser 22 and thus an appearance of a gap between adjacent steps 20 due to a damage.
  • the thickness of the riser 22 can be increased to prevent a damage of the riser 22.
  • Fig. 6 shows a transition area 11 in which the steps 20 are turned around.
  • the tow rollers of the steps are guided around a curved guide rail of a small turning radius such that the depth of the pit can be reduced especially such that the depth d of the pit is reduced to d ⁇ 1m.
  • the riser 22 of the step 20 is fold towards the lower side of the tread 21 via the hinge. While folding, the riser 22 is guided in a predetermined curve defined by the curved sliding guide 221, wherein the wheel 262 of the riser shaft 261 rolls within the curved sliding guide 221.
  • the step 20 folds automatically when guided through the turnaround according the trajectory of the step chain 12 due to the step 20 is connected to the step chain at the first supporting point in a fixed manner and at the third supporting point the step is connected to the step chain 12 in a lose manner via the riser shaft 261.
  • the riser 22 is folded towards the lower side of the tread 21. Equivalent, when leaving the transition area 11, the step 20 unfolds automatically due to the trajectory of the step chain 12.
  • the riser 22 guided is guided in the predetermined curve defined by the curved sliding guide 221 of the riser 22. Thereat, the riser 22 is turned around the riser shaft 261, wherein the wheel 262 of the riser shaft 261 rolls within the curved sliding guide 221.
  • the riser shaft 261 is connected to the step chain 12 via a special fitting 263.
  • the fitting 263 comprises an outer thread 2631 fixed to the step chain 12 and a connecting nut 2632, fitting on the outer thread 2631.
  • the fitting 263 enables an easy connecting and disconnecting of the riser shaft to the step chain and therefore an easy mount and dismount of the step to the conveying system of the escalator.

Landscapes

  • Escalators And Moving Walkways (AREA)
EP19382337.4A 2019-05-06 2019-05-06 Fördersystem einer rolltreppe Active EP3736241B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19382337.4A EP3736241B1 (de) 2019-05-06 2019-05-06 Fördersystem einer rolltreppe
CN202080034069.XA CN113784909A (zh) 2019-05-06 2020-04-30 自动扶梯的输送系统
EP20720913.1A EP3966150A1 (de) 2019-05-06 2020-04-30 Fördersystem einer rolltreppe
PCT/EP2020/062010 WO2020225084A1 (en) 2019-05-06 2020-04-30 Conveying system of an escalator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19382337.4A EP3736241B1 (de) 2019-05-06 2019-05-06 Fördersystem einer rolltreppe

Publications (2)

Publication Number Publication Date
EP3736241A1 true EP3736241A1 (de) 2020-11-11
EP3736241B1 EP3736241B1 (de) 2023-07-05

Family

ID=66529931

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19382337.4A Active EP3736241B1 (de) 2019-05-06 2019-05-06 Fördersystem einer rolltreppe
EP20720913.1A Withdrawn EP3966150A1 (de) 2019-05-06 2020-04-30 Fördersystem einer rolltreppe

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20720913.1A Withdrawn EP3966150A1 (de) 2019-05-06 2020-04-30 Fördersystem einer rolltreppe

Country Status (3)

Country Link
EP (2) EP3736241B1 (de)
CN (1) CN113784909A (de)
WO (1) WO2020225084A1 (de)

Families Citing this family (2)

* 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
CN118607132A (zh) * 2024-08-05 2024-09-06 苏州辛得利机电科技有限公司 自动扶梯的梯级的踢面曲线的生成方法及计算设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115899A (en) * 1990-01-16 1992-05-26 Mitsubishi Denki Kabushiki Kaisha Dual-speed escalator apparatus
EP1072552A1 (de) 1998-04-13 2001-01-31 Nobuo Nakanishi Fahrtreppe
JP2007084181A (ja) * 2005-09-20 2007-04-05 Mitsubishi Electric Building Techno Service Co Ltd エスカレータ
WO2010115317A1 (zh) * 2009-04-09 2010-10-14 苏州市申龙电梯有限公司 控制可折叠式梯级折叠与打开的梯路结构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0632577A (ja) * 1992-06-29 1994-02-08 Otis Elevator Co エスカレーターの折り畳み式ステップ
JP3432745B2 (ja) * 1997-06-17 2003-08-04 日本フィレスタ株式会社 乗客コンベア装置
TW443988B (en) * 1997-12-03 2001-07-01 Nippon Fillester Kk Escalator which smoothly shifts riser between upper stretch region and lower stretch region
JP2000327251A (ja) * 1999-05-20 2000-11-28 Toshiba Elevator Co Ltd エスカレーター
CN201121090Y (zh) * 2007-10-15 2008-09-24 吴江全胜机电有限公司 拆叠式自动扶梯梯级的上下踢板折叠和展开机构
CN101423171B (zh) * 2008-10-27 2011-12-14 苏州市申龙电梯有限公司 可折叠式梯级返回段折叠与打开控制机构
CN201473163U (zh) * 2009-07-21 2010-05-19 苏州市申龙电梯有限公司 自动扶梯可折叠梯级

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115899A (en) * 1990-01-16 1992-05-26 Mitsubishi Denki Kabushiki Kaisha Dual-speed escalator apparatus
EP1072552A1 (de) 1998-04-13 2001-01-31 Nobuo Nakanishi Fahrtreppe
JP2007084181A (ja) * 2005-09-20 2007-04-05 Mitsubishi Electric Building Techno Service Co Ltd エスカレータ
WO2010115317A1 (zh) * 2009-04-09 2010-10-14 苏州市申龙电梯有限公司 控制可折叠式梯级折叠与打开的梯路结构

Also Published As

Publication number Publication date
EP3736241B1 (de) 2023-07-05
CN113784909A (zh) 2021-12-10
WO2020225084A1 (en) 2020-11-12
EP3966150A1 (de) 2022-03-16

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