EP1306342B1 - Personenförderanlage - Google Patents

Personenförderanlage Download PDF

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Publication number
EP1306342B1
EP1306342B1 EP00942362A EP00942362A EP1306342B1 EP 1306342 B1 EP1306342 B1 EP 1306342B1 EP 00942362 A EP00942362 A EP 00942362A EP 00942362 A EP00942362 A EP 00942362A EP 1306342 B1 EP1306342 B1 EP 1306342B1
Authority
EP
European Patent Office
Prior art keywords
step chain
steps
chain
link
shaft
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.)
Expired - Lifetime
Application number
EP00942362A
Other languages
English (en)
French (fr)
Other versions
EP1306342A1 (de
EP1306342A4 (de
Inventor
Tatsuya Elevators & Escalators MATSUMOTO
Yukihiro Elevators & Escalators YAMAGUCHI
Chuichi Hitachi Ltd. SAITOH
Kazuhira Elevators & Escalators OJIMA
Takashi Mechanical Eng. Research Lab. TERAMOTO
Masamitsu Hitachi Building Syst. Co. Ltd YAMAKI
Yoshio Elevators & Escalators ABE
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.)
Hitachi Ltd
Hitachi Building Systems Co Ltd
Original Assignee
Hitachi Ltd
Hitachi Building Systems Co Ltd
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 Hitachi Ltd, Hitachi Building Systems Co Ltd filed Critical Hitachi Ltd
Publication of EP1306342A1 publication Critical patent/EP1306342A1/de
Publication of EP1306342A4 publication Critical patent/EP1306342A4/de
Application granted granted Critical
Publication of EP1306342B1 publication Critical patent/EP1306342B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66B23/02—Driving gear
    • B66B23/026—Driving gear with a drive or carrying sprocket wheel located at end portions
    • 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
    • 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

Definitions

  • the present invention relates to a passenger conveyer such as an escalator, a moving sidewalk and, more particularly, to a passenger conveyer in which the steps or the step treads are moved and circulated by being turned by 180 degrees at a direction turning portion between the forward path and the returning path so that the tread faces upward on the forward path and downward on the returning path.
  • the step treads are moved and circulated with the tread facing upward on the forward path side, and turned by 180 degrees at the direction turning portion so that the tread faces downward on the returning path side, as disclosed, for example, in Japanese Patent Application Laid-Open No. 1-55195 .
  • a space for turning the direction of the step is not considered, and accordingly the space for turning the direction of the step is unnecessarily larger. Therefore, the space for turning the direction of the step has affected on the portion around the installation place of the escalator.
  • a passenger conveyor according to the preamble of claim 1 is known e.g. from JP-A-58207207 .
  • An object of the present invention is to provide a novel passenger conveyer of which the installation space is small.
  • Another object of the present invention is to provide a novel passenger conveyer which can reduce the volume of the direction turning space between the forward path and the returning path of the steps.
  • a further object of the present invention is to provide a novel passenger conveyer which can smoothly perform the direction turning operation of the steps between the forward path and the returning path when the volume of the direction turning space between the forward path and the returning path of the steps is reduced.
  • the present invention provides the passenger conveyer defined im claim 1.
  • a plurality of steps are moved and circulated so that a tread faces upward on a forward path and faces downward on a returning path, and the step is coupled to step a chain through a crank mechanism which swings at a direction turning portion between the forward path and the returning path.
  • the step under turning direction at the direction turning portion between the forward path and the returning path can be turned by 180 degrees by being displaced toward the outer side of the moving direction of the step chain with respect to the moving path of the step chain. Therefore, even if diameters of the step chain driving sprocket and the step chain driven sprocket to be wrapped with the step chain are made small, the gap between the steps adjacent to each other during turning direction can be secured. As the result, interference between the steps adjacent to each other during turning direction can be prevented. Therefore, the smoothness of the direction turning operation of the step can not be deteriorated, the turning radius of the step can be minimized to reduce the volume of the direction turning space, and the installation space of the passenger conveyer can be reduced.
  • the escalator 1 of the present invention is constructed as follows. That is, as shown in FIG. 4 , a main frame 4 is installed between an upper floor 2 and a lower floor 3 vertically apart from each other, and in the main frame 4 a plurality of steps 5 moving along the longitudinal direction of the main frame are guided. Front wheels 6 are supported in the both sides in the width direction of the upper step side of the step 5, and rear wheels 7 are supported in the both sides in the width direction of the lower step side with a spacing between the rear wheels narrower than the spacing between the front wheels 6. As shown in FIG. 1 , the front wheel 6 and the rear wheel 7 are rotatably supported to the step 5 through wheel shafts 8 and 9 projecting in the width direction of the step, respectively.
  • the front wheel 6 and the rear wheel 7 supported as described above rotate and move on a pair of right and left front wheel guide rails 10, 10' and on a pair of right and left rear wheel guide rails 11, 11' installed in the main frame 4, respectively.
  • the steps 5 are circulated and moved the forward path and the returning path between an upper machine room UM and a lower machine room LM arranged in the both ends in the longitudinal direction of the main frame 4.
  • each of the steps is coupled to endless step chains 12.
  • the pair of step chains 12 are arranged in the both sides in the width direction of the step 5, and each of the step chains is wrapped over a step chain driving sprocket 13 supported to the upper machine room UM and a step chain driven sprocket 14 supported to the lower machine room LM.
  • the pair of step chain driving sprockets 13 are attached to a rotary shaft 13S, and the rotary shaft 13S is supported by a right and a left side frame bodies 4A and 4B composing the main frame 4.
  • a power transmitting sprocket 26 is coaxial with the pair of step chain driving sprockets 13, and arranged in the side opposite to the step. Power of a motor 17 is transmitted to the power transmitting sprocket 26 through a power chain 15 and a reduction gear 16.
  • a pair of balustrade panels 18 composing balustrades are supported by the right and the left side frame bodies 4A, 4B to stand in the both sides of the steps 5 endlessly coupled by the step chains 12, and a handrail 19 is guided along the periphery of the balustrade panel 18.
  • the handrail 19 is driven in synchronism with the steps by obtaining power from the power transmitting sprocket 26.
  • a base portion of the balustrade panel 18 is covered with an inner deck 20 and an outer deck 21, and further the both sides in the width direction of the step 5 and the balustrade are partitioned with a skirt guard 22 arranged vertically. Further, the out side of the main frame 4 is covered with an outer panel 23 composed of ornamental boards.
  • the front wheel 6 and the step chain 12 and the coupling mechanism The most important structure among the structures described above is the front wheel 6 and the step chain 12 and the coupling mechanism.
  • the front wheel 6 is supported to the wheel shaft 8 of step shaft projecting in the width direction of the step 5, and is coupled to the step chain 12 at a position outside of the front wheel 6 of the wheel shaft 8.
  • one end of the coupling link 24 is coupled to the shaft end portion of the wheel shaft 8 supporting the front wheel 6 so as to be rotatable around the shaft, and the other end of the coupling link 24 is extended toward the side of the rear wheel 7, and the other end of the coupling link 24 is coupled to the step chain 12 corresponding to the extended end through the link shaft 25 so as to be rotatable.
  • the link shaft 25 is arranged in parallel to the wheel shaft 8, and each of the shafts 8, 25 coupling the coupling link 24 is arranged intersecting at right angle with the step chain 12.
  • the step 5 and the step chain 12 are coupled with each other through a crank mechanism having the wheel shaft 8, the coupling link 24 and the link shaft 25, that is, a link mechanism having the shaft intersecting at right angle with the step chain 12 and the coupling link 24 coupled to the shaft.
  • a normal chain link 12A and a specific chain link 12B are connected to the step chain 12, and the link shaft 25 is attached to the specific chain link 25B, and the other end of the coupling link 24 is coupled to the link shaft 25.
  • the normal chain link 12A and the specific chain link 12B are equal to each other in shape in order to make the chain pitch equal to each other. Therefore, if the chain pitch is equal to each other, it is not necessary that the normal chain link 12A and the specific chain link 12B always have the same shape. Further, instead of using the specific chain link 12B, it may be possible that the other end of the coupling link 24 is couple to a link pin 12P coupling between the normal links 12A adjacent to each other.
  • the front wheel 6 is rotated and moved by guided in a hemispherical double rail portion (having an opening width m which is slightly larger than the diameter of the front wheel 6) of the guiding rail 10 arranged in the direction turning portion.
  • the hemispherical guiding rail 10 for guiding the front wheel is arranged in order that the wheel shaft 8 side of the coupling link 24 is swung with respect to the step chain 12 so as to be moved slightly projecting toward the outer side of the moving direction of the step chain 12 with respect to the moving path of the step chain 12 which is moved along the outer periphery of the step chain driving sprocket 13.
  • the hemispherical guiding rail 10 is formed so that displacement of the center of the front wheel 6 with respect to the moving path of the step chain 12 at the endmost position of the direction turning portion becomes the maximum center displacement W.
  • the gap between the steps 5 adjacent to each other is increased by the eccentricity of the guiding rail 10 increasing to the maximum center displacement W, and accordingly interference (collision) between the steps 5 adjacent to each other at turning direction can be prevented.
  • the smooth direction turning operation of the step 5 is deteriorated by that the front wheel 6 falls down inside the hemispherical guide rail 10 due to the deadweight of the step to narrowing the gap to the preceding step 5 or by that the front wheel 6 is stopped to be moved there to narrowing gap to the following step 5. Therefore, it is necessary that the length of the shaft supporting pitch P of the coupling link 24 is longer than the maximum center displacement W.
  • the front wheel 6 moving on the path projecting toward the outer side with respect to the moving path of the step chain can be smoothly moved in the direction turning portion and accordingly the trouble described above can be avoided.
  • the coupling link 24 is returned to the original state parallel to the step chain 12.
  • step 5 (a) moving on the guide rails 10, 11 from left-hand side to right-hand side is in the state that the coupling link 24 coupled to the wheel shaft 8 of the front wheel 6 is parallel to the step chain 12 and the link shaft 25 of coupling portion to the step chain 12 of the coupling link 24 is at a backside position with respect to the moving direction of the step 5.
  • step 5 (a) in this state reaches the outer periphery of the step chain drive sprocket 13 as the step chain 12 is moved, the front wheel 6 is initially guided along the hemispherical portion of the guide rail 10 and then the rear wheel 7 is guided along the hemispherical portion of the guide rail 11.
  • the step 5 (b) guided as described above begins to be tilted by the outer periphery of the step chain drive sprocket 13 while the end portion of the step in the moving direction is directed downward.
  • the coupling link 24 is swung to be displaced by the difference in the different dimension (the shifted dimension of the center). Since the gap between the steps adjacent to each other 5 (b) - 5 (a) and between 5 (b) - 5 (c) at turning direction, interference between the steps adjacent to each other can be eliminated and accordingly the direction turning operation of the step can be smoothly performed.
  • the inclination of the tread is further increased as the step 5 is moved from 5 (b) to 5 (c), and the tread faces downward when the step exceeds the midpoint of the direction turning portion.
  • the front wheel 6 is moved on and departed from the outer periphery of the step chain driving sprocket 13, as shown by 6 (1), 6 (2).
  • the front wheel 6 is moved on and approaches to the outer periphery of the step chain driving sprocket 13, as shown by 6 (3), 6 (4).
  • the step 5 (d) is guided by the guide rails 10', 11' in the returning path, the tread completely faces downward, and the coupling link 24 becomes horizontal and parallel to the step chain 12.
  • the tread 5F facing downward in the returning path is changed to face upward as the step 5 approaches to the forward path.
  • the direction turning operation is performed using the step chain driven sprocket 14.
  • the mechanism and the operation are similar to the mechanism and the operation in the upper machine room UM. That is, the direction turning operation of the step 5 from the returning path to the forward path in the lower machine room LM is performed by a construction similar to a construction when the construction of FIG. 2 is upside down by rotating the figure by 1890 degrees. Therefore, the explanation is omitted here.
  • a dedicated guide rail is arranged in the step chain 12, particularly whether or not there is provided a dedicated rail which is rotatable with respect to the step chain 12 and to which the front wheel 6 and the coupling link 24 correctly follow may be determined depending on the necessity.
  • the present invention can be applied to a moving sidewalk for horizontally moving or for slightly inclining moving.
  • the step may be read for the step tread
  • the step chain may be read for the step tread chain.
  • the front wheel 6 is restricted motion in the lateral direction (snaking) by being guided by the front wheel guide rail 10, 10' during moving the step 5 so as to prevent the step 5 from coming in contact with the machine of the escalator such as skirt guard 22 ( FIG. 3 ).
  • the front wheel 6 snakes in the lateral direction during moving of the step 5 to produce a force in a direction to change the distance between the step chain 12 and the step 5 and accordingly to produce a moment load in the both end portions of the coupling link 24 as the coupling portion between the step 5 and the step chain 12. If the moment load is repetitively produced in the both end portions of the coupling link 24, the both end portions will be broken.
  • bearings 30A, 30B is arranged between the coupling link 24 and the wheel shaft 8 and between the coupling link 24 and the link shaft 25 so that both of the bearing 30A, 30B are movable in the shaft direction.
  • an inner wheel 32 of the bearing 30B is inserted over the link shaft 25 arranged in the specific link 12B of the step chain 12 through a collar 31
  • an outer wheel 34 is inserted over the outer periphery of the inner wheel 32 through a plurality of rollers 33, further a housing 35 of the coupling link 24 is arranged in the periphery of the outer wheel 34, the outer wheel 34 is fixed to the housing 35 using a ring 36, and a bearing nut 37 is arranged in the link shaft 25.
  • an inner wheel 42 of the bearing 30A is inserted over the wheel shaft 8 through a collar 41
  • an outer wheel 42 is inserted over the outer periphery of the inner wheel 42 through a plurality of rollers 43
  • a housing 45 of the coupling link 24 is arranged in the outer periphery of an outer wheel 44
  • the housing 45 is fixed to the outer wheel 44 using a ring 46
  • a bearing nut 47 is arranged in the top end of the wheel shaft 8.
  • the outer wheels 34, 44 can slide and move the inner wheels 32, 42 in the shaft direction through the rollers 33, 43, and the outer wheels 34, 44 can be moved until the outer wheels 34, 44 come in contact with the collars 31, 41 or with the bearing nuts 36, 46.
  • the moment load produced in the bearings 30A, 30B portions as the coupling portions of the coupling link 24 can be suppressed low and shortening of the lifetime of the coupling portion can be suppressed.
  • both of the bearings provided in the both of the end portions of the coupling link 24 are the roller bearings.
  • a ball bearing is used for one of the bearings and a roller bearing is used for the other of the bearings so as to be displaceable only one side, the moment load produced can be suppressed low.

Landscapes

  • Escalators And Moving Walkways (AREA)

Claims (1)

  1. Personenbeförderungseinrichtung mit
    mehreren Stufen (5), die mit Vorderrädern (6) und Hinterrädern (7) ausgerüstet sind und so bewegt und zirkuliert werden, dass eine Trittfläche auf einem Vorwärtsweg nach oben zeigt und auf einem Rückkehrweg nach unten zeigt,
    einer Stufenkette (12), die die mehreren Stufen (5) endlos miteinander verbindet, und
    einem Stufenketten-Antriebszahnrad (13) und einem durch die Stufenkette angetriebenen Zahnrad (14), die an den Richtungsänderungsabschnitten zwischen dem Vorwärtsweg und dem Rückkehrweg angeordnet sind, um die Stufenkette (12) zu bewegen und zu zirkulieren,
    wobei eine die Vorderräder (6) tragende Radwelle (8) von den Stufen (5) in der Breitenrichtung hervorragt,
    dadurch gekennzeichnet, dass
    eine Verbindungswelle (25) parallel zu der Radwelle (8) von der Stufenkette (12) in Richtung der Stufen (5) hervorragt,
    ein Verbindungsglied (24) mit seinem einen Ende drehbar mit der Radwelle (8) verbunden ist und mit seinem anderen Ende in Richtung der Hinterräder (7) verläuft,
    auf der Verlaufsseite das andere Ende des Verbindungsglieds (24) drehbar mit der Verbindungswelle (25) verbunden ist, und
    an dem Richtungsänderungsabschnitt der Stufen (5) eine Führungseinrichtung eingerichtet ist, so dass die Vorderräder (6) sich außerhalb eines Drehwegs der Stufenkette (12) bewegen.
EP00942362A 2000-06-28 2000-06-28 Personenförderanlage Expired - Lifetime EP1306342B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/004243 WO2002000542A1 (fr) 2000-06-28 2000-06-28 Dispositif de transport pour personnes

Publications (3)

Publication Number Publication Date
EP1306342A1 EP1306342A1 (de) 2003-05-02
EP1306342A4 EP1306342A4 (de) 2006-05-17
EP1306342B1 true EP1306342B1 (de) 2011-01-19

Family

ID=11736193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00942362A Expired - Lifetime EP1306342B1 (de) 2000-06-28 2000-06-28 Personenförderanlage

Country Status (6)

Country Link
EP (1) EP1306342B1 (de)
JP (1) JP3699957B2 (de)
CN (1) CN1248954C (de)
DE (1) DE60045563D1 (de)
MY (1) MY128204A (de)
WO (1) WO2002000542A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4927367B2 (ja) * 2005-09-21 2012-05-09 東芝エレベータ株式会社 乗客コンベアの踏段ローラ
ES2573674T3 (es) * 2006-12-21 2016-06-09 Inventio Ag Sistema de accionamiento para un dispositivo de traslación con cadena deslizante
CN101456516B (zh) * 2007-12-13 2013-11-13 泰森克鲁普电梯（Es/Pbb）有限公司 运送乘客/货物的输送***
CN102442602A (zh) * 2010-10-08 2012-05-09 苏州帝奥电梯有限公司 自动扶梯梯级的主副轮
WO2014084805A2 (en) * 2012-11-01 2014-06-05 Otis Elevator Company Offset pallet guidance for passenger conveyor
US9550655B2 (en) 2012-11-01 2017-01-24 Otis Elevator Company Pallet return in moving walkways
NO335839B1 (no) 2012-12-10 2015-03-02 Jakob Hatteland Logistics As Robot for transport av lagringsbeholdere
US11858738B2 (en) 2013-08-09 2024-01-02 Ocado Innovation Limited Apparatus for retrieving units from a storage system
GB201314313D0 (en) 2013-08-09 2013-09-25 Ocado Ltd Apparatus for retrieving units from a storage system
NO337544B1 (no) * 2014-06-19 2016-05-02 Jakob Hatteland Logistics As Fjernstyrt kjøretøysammenstilling for å plukke opp lagringsbeholdere fra et lagringssystem
EP3283426B1 (de) * 2015-04-16 2019-01-23 Inventio AG Fahrtreppe mit gemeinsamen rücklaufschienen
CN107265274B (zh) * 2017-07-07 2019-03-08 江苏品尚机械科技有限公司 一种自动人行道
EP3473576A1 (de) 2017-10-20 2019-04-24 Otis Elevator Company Kettenantrieb für einen personenförderer
EP3569554B1 (de) * 2018-05-16 2021-02-24 Otis Elevator Company Antriebssystem für einen personenförderer
CN109052131B (zh) * 2018-10-17 2023-09-08 苏州奔一机电有限公司 一种新型梯级主轴座

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211833B2 (de) * 1972-09-29 1977-04-02
JPS58207207A (ja) * 1982-05-28 1983-12-02 Hitachi Ltd チエン
JP2552745B2 (ja) * 1990-01-16 1996-11-13 三菱電機株式会社 曲線エスカレーター
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

Also Published As

Publication number Publication date
MY128204A (en) 2007-01-31
JP3699957B2 (ja) 2005-09-28
WO2002000542A1 (fr) 2002-01-03
EP1306342A1 (de) 2003-05-02
CN1454179A (zh) 2003-11-05
EP1306342A4 (de) 2006-05-17
DE60045563D1 (de) 2011-03-03
CN1248954C (zh) 2006-04-05

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