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US3749224A - Handrail drive arrangement for escalators and human conveyor bands - Google Patents

Handrail drive arrangement for escalators and human conveyor bands Download PDF

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Publication number
US3749224A
US3749224A US00226120A US3749224DA US3749224A US 3749224 A US3749224 A US 3749224A US 00226120 A US00226120 A US 00226120A US 3749224D A US3749224D A US 3749224DA US 3749224 A US3749224 A US 3749224A
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US
United States
Prior art keywords
handrail
run
drive
toothed belt
advancing
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
US00226120A
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English (en)
Inventor
K Engeler
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Inventio AG
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Inventio AG
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Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
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Publication of US3749224A publication Critical patent/US3749224A/en
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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
    • B66B23/04—Driving gear for handrails

Definitions

  • ABSTRACT A handrail drive arrangement for personnel transport means, especially escalators and human conveyor bands or belts wherein power transmission is carried out by means of an entrainment mechanism which engages with a toothed arrangement located at the underside of a flexible handrail.
  • the entrainment mechanism positively couples the advancing run and the return run of the handrail with one another and simultaneously transmits the driving force or motive power to the advancing run and the return run.
  • the present invention broadly relates to the field of transport mechanisms and, in particular, concerns a new and improved handrail driv-e arrangement for escalators and human conveyor bands or the like, wherein the transmission of force or power is undertaken by an entrainment mechanism which engages with a toothed arrangement located at the underside of a flexible handrail.
  • the state-of-the-art handrail drive arrangements transmit the drive force or motive power either in a force-locking manner or a positiveor formlocking manner. Belonging to the first classification are those drive systems which transmit the drive force by friction. With such type drives the handrail is trained about the deflection locations at the balustrade and, in the event that the drive action does not take place at a deflection location, then such handrail is trained or wrapped about a drive gear or wheel housed at the base or pedestal of the escalator. With this arrangement the wrapping angle of the handrail about the drive gear or wheel must be as large as possible in order to attain really good power transmission.
  • the handrail is constructed at its underside in a racklike manner or there are connected to the underside of such handrail link chains, flexible perforated steel bands or other suitable means. Power transmission takes place by means of large gear or sprocket wheels forming entrainment mechanisms located at the'deflection locations of the handrail.
  • cordingto a different construction of drive system the handrail provided at its underside with teeth is driven at the return run by one or a number of V-belt pulleys in which there is housed an entrainment mechanism consisting of an endless toothed band.
  • V-belt pulleys in which there is housed an entrainment mechanism consisting of an endless toothed band.
  • Other variants of this type drive employ for power transmission purposes a plurality of gears at the return run and serving as the entrainment mechanisms, or also in order to obtain a greater length of engagement a toothed band guided over two rollers or a link chain.
  • a primary ojective of this invention is to provide a handrail drive arrangement for such escalators and human conveyor belts or bands which effectively and reliably fulfills the existing need in the art and is not associated with the aforementioned drawbacks and limitations of the heretofore known constructions.
  • Yet a further equally important and more specific object of the present invention is to provide a handrail drive arrangement capable of taking-up the loads caused by the bearing forces of the travelling public, especially for large-lift escalators and long human eonveyor bands, so that premature wear at the handrails and the guideand deflection devices respectively is prevented, and thus, operation of the personnel escalator or conveyor band can be carried out more economically.
  • Another significant object of the present invention relates to a new and improved construction of handrail drive for human transport devices which is relatively simple in construction, economical to manufacture, extremely reliable in operation, not readily subject to breakdown and wear, requires a minimum of maintenance and servicing, and affords positive and reliable synchronous travel of the handrail with the transport device proper.
  • the drive arrangement proposed by this invention provides an entrainment mechanism which positively couples the advancing run and the return run of the handrail with one another and simultaneously transmits the drive force to the advancing run and the return run.
  • FIG. 1 is a schematic illustration, in side view, of a personnel transport device designed according to the teachings of this invention, and here shown by way of illustration in the form of an escalator;
  • FIG. 2 is an enlarged elevational view of the inventive handrail drive
  • FIG. 3 is a cross-sectional view of the handrail drive depicted in FIG. 2, taken substantially along the line A-A thereof;
  • FIG. 4 is a schematic view of the handrail drive depicted in FIG. 2 at the region of a deflecting location of the handrail.
  • inventive handrail drive will be considered in conjunction with an escalator for transporting personnel or humans, it is obviously not to be considered as solely limited to this environment of use since it has applicability for other types of personnel transport devices, such as for instance the previously mentioned personnel conveyor belts or bands.
  • FIG. 1 A side schematic view of an escalator structure with which the inventive handrail drive arrangement or system has been employed has been illustrated in FIG. 1.
  • reference character 1 designates the pedestal or base of an escalator and at which there is housed a drive 2 of a stepped escalator chain 3.
  • Drive 2 is driven in conventional manner by means of any suitable and therefore not particularly illustrated electric motor.
  • a further gear arrangement or transmission 8 is driven via a chain 7 by means of a deflecting gear or wheel 6 located at the upper end of the escalator.
  • the stepped chain 3 drives a gear arrangement 9.
  • the pedestal l carries a balustrade or handrail support 10 about which is trained an elastic flexible endless handrail 11 having at its undcrface the toothed arrangement or gear teeth 11a as shown quite clearly in FIG. 2.
  • Handrail 11 slides upon guide slide rails 12 and 13 secured to the balustrade 10 and defining guideand deflecting devices or means.
  • a number of drive units 14 housed at the balustrade 10 simultaneously drive the handrail 11 at the advancing or forward moving run 11.1 and the rearward or reverse moving run I 1.2 through the agency of a respective endless doubletooth belt 15, Le, a belt having teeth 15a at both faces as clearly shown in FIG. 2 and defining an entrainment mechanism.
  • the double-toothed belts 15 can be adjusted by tensioning rolls 16 in in such a manner that load-relief or unloading of the handrail 11 at the deflection locations where there is positioned the deflecting means 12 is possible.
  • a chain 17 or equivalent transmits rotational moment from the gear arrangement 5 to the lower drive unit or drive 4 of the handrail 11.
  • the upper drive unit or drive 14 has imparted thereto a rotational moment from the gear arrangement 8 through the agency of a chain 18, whereas the drive unit or drive 14 arranged at the central region of the escalator is driven by the gear arrangement 9 through the agency of the chain 19.
  • FIG. 2 there is illustrated therein, on an enlarged scale, details of a drive unit 14 of the inventive handrail drive arrangement as same is employed in conjunction with the escalator structure of FIG. 1.
  • a drive gear 21 and deflecting gear 22 are rotatably mounted upon a base plate 20 of the drive unit 14.
  • the double-toothed belt 15, defining the entrainment mechanism is in meshing engagement by means of its tooth or toothed arrangement 15a, on the one hand with the handrail l1, and on the other hand, with the deflection gears or wheels 22 and the drive gear 21.
  • a sprocket wheel or gear 23 is fixedly connected with the drive gear 21.
  • Reference numerals 12 and 13 again designate the guide slide rails for the handrail 11 and defining the guide and deflecting devices.
  • Supports 24 are secured to the base plate 20 and at which there are threadably connected by means of the nut members 26 one end of the bifurcated threaded bolts 25.
  • the bifurcated bolts 25 together with the tensioning or tension rolls 16 can be shifted.
  • reference numeral 21 again designates the drive gear rigidly connected with the sprocket gear 23 and which is rotatably mounted upon the base plate 20 of the drive unit 14 and receives its driving rotational moment through the agency of the chain 18.
  • Supports 27 which are connected to the base plate 20 carry the guide slide rails 13 for the handrail 11.
  • the guide slide rails 12 are secured in any suitable aNd therefore not particularly illustrated fashion to the balustrade 10 of the escalator.
  • the guide slide rails 13, located between the deflecting gears or sprocket wheels 22 for instance at the upper region of the drive unit 14 of FIG.
  • the double-toothed belt 15 is provided with steel inserts or reinforcements 15.1 which insure that it is practically free of elongation of stretching.
  • a further advantage of the invention resides in the fact that especially in the case of large lift escalators and long personnel conveyor bands or belts the loads caused by the bearing forces of the travellers are takenup by the inventive drive arrangement and distributed in such a manner that at the used section of the handrail there likewise can only arise minimum frictionand tension loads.
  • the bearing forces arising along the used portions of the length of the handrail are distributed to the three drive units proposed in this exemplary embodiment. These drive units are preferably arranged at the upper end, the lower end and at the central region of the linear portion of the escalator.
  • At least one of the deflecting gears 22 can be mounted to be displaceable in the direction of the band.
  • a handrail drive arrangement for personnel transport devices, especially escalators and conveyor bands comprising a flexible handrail provided at its underside with a tooth arrangement, drive means for said handrail, said handrail during its travel defining an advancing run and a return run, said drive means including a toothed belt simultaneously engaging with the toothed arrangement at the underside of both the advancing run and the return run of the flexible handrail, said toothed belt positively interconnecting the advancing run and the return run of the handrail and simultaneously transmitting the drive force to the advancing run and return run, means for displacing said toothed belt, said displacing means comprising support means, a pair of tensioning rolls, a pair of bifurcated means, nut members for displaceably mounting said pair of bifurcated means together with said tensioning rolls at said support means, each of said bifurcated means rotatably mounting one of the pair of tensioning rolls, each tensioning roll being arranged at a part of the toothed belt which extends between the advancing run
  • toothed belt comprises an endless, essentially non-elongatable double-toothed belt containing-steel reinforcement means.

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  • Escalators And Moving Walkways (AREA)
US00226120A 1971-02-24 1972-02-14 Handrail drive arrangement for escalators and human conveyor bands Expired - Lifetime US3749224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH269971A CH517044A (de) 1971-02-24 1971-02-24 Handlaufantrieb für Fahrtreppen und Personenförderbänder

Publications (1)

Publication Number Publication Date
US3749224A true US3749224A (en) 1973-07-31

Family

ID=4239596

Family Applications (1)

Application Number Title Priority Date Filing Date
US00226120A Expired - Lifetime US3749224A (en) 1971-02-24 1972-02-14 Handrail drive arrangement for escalators and human conveyor bands

Country Status (8)

Country Link
US (1) US3749224A (de)
AT (1) AT315736B (de)
CH (1) CH517044A (de)
DE (1) DE2208694C2 (de)
FR (1) FR2126203B1 (de)
GB (1) GB1354255A (de)
IT (1) IT947836B (de)
SE (1) SE371415B (de)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194616A (en) * 1977-03-11 1980-03-25 Barbedienne Roger Serge Helical conveyors
US4706800A (en) * 1980-09-17 1987-11-17 Davidson Mats Ingvar Device for conveyor tracks
EP0385276A2 (de) * 1989-02-28 1990-09-05 Otis Elevator Company Sich automatisch einstellender Antrieb für eine Halbleiste einer Fahrtreppe
US4984671A (en) * 1990-07-11 1991-01-15 Otis Elevator Company Balustrade radius development for curved escalator
US5062520A (en) * 1990-07-11 1991-11-05 Otis Elevator Company Self adjustable handrail drive with separate drive chains
US5125494A (en) * 1991-09-03 1992-06-30 Montgomery Elevator Company Handrail drive mechanism for a passenger conveyor
US5207308A (en) * 1992-05-18 1993-05-04 Otis Elevator Company Moving handrail drive belt tensioning device
US5259492A (en) * 1992-12-30 1993-11-09 Otis Elevator Company Dual belt linear handrail drive
US5307920A (en) * 1993-09-14 1994-05-03 Otis Elevator Company Moving handrail drive
US5544730A (en) * 1994-03-01 1996-08-13 Otis Elevator Company Tension release for passenger conveyor
US5638937A (en) * 1995-01-13 1997-06-17 Inventio Ag Handrail drive system conversion
US5755315A (en) * 1995-06-30 1998-05-26 Otis Elevator Company Handrail drive for a passenger conveyor
US6450317B1 (en) * 2000-09-26 2002-09-17 Otis Elevator Company Escalator drive machine
WO2005068340A1 (en) * 2004-01-16 2005-07-28 Escalator Handrail Company (Barbados) Inc. Positive drive handrail assembly
EP1721861A1 (de) * 2005-05-09 2006-11-15 Inventio Ag Handlauf für eine Fahrtreppe oder einen Fahrsteig
WO2006121456A2 (en) * 2005-05-05 2006-11-16 Otis Elevator Company Positive linear handrail drive with toothed belt
US20070175731A1 (en) * 2004-01-22 2007-08-02 Kone Corporation Travelator, moving ramp or escalator
US20080296125A1 (en) * 2007-06-01 2008-12-04 Kone Corporation Load sharing handrail drive apparatus
US7581631B2 (en) 2004-01-22 2009-09-01 Kone Corporation Travelator, moving ramp or escalator
US20110083937A1 (en) * 2005-05-05 2011-04-14 Changsheng Guo Passenger conveyor handrail drive
US20150090558A1 (en) * 2012-01-06 2015-04-02 Otis Elevator Company Brake System for Passenger Conveyors
US20190071286A1 (en) * 2017-09-01 2019-03-07 Kone Corporation Tension device for drive chain, method and escalator system using same
US20200207587A1 (en) * 2017-08-10 2020-07-02 Inventio Ag Handrail-drive system with drive elements integrated in the handrail

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703436A1 (de) * 1977-01-28 1978-08-03 Orenstein & Koppel Ag Mit einer rolltreppe integrierte foerderanlage zum befoerdern von gepaeckstuecken
JPS5420498U (de) * 1977-07-14 1979-02-09
JPS5420497U (de) * 1977-07-14 1979-02-09
DE3732226A1 (de) * 1986-09-26 1988-04-28 Otis Elevator Co Doppelseitiger zahnriemen-fahrtreppenantrieb
JP4115304B2 (ja) * 2003-03-07 2008-07-09 東芝エレベータ株式会社 乗客コンベア
DE102010004482B4 (de) * 2010-01-12 2013-01-10 Kone Corp. Einrichtung zum Antreiben eines Handlaufs
CN114249065B (zh) * 2022-01-25 2022-11-18 江苏博顺带业有限公司 耐高温抗撕裂输送带

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248945A (en) * 1959-02-26 1966-05-03 Rockwell Mfg Co Viscosity compensated turbine flow meter
DE1456375A1 (de) * 1966-04-14 1968-12-12 Orenstein & Koppel Ag Antrieb fuer Rolltreppen
DE6924946U (de) * 1969-06-23 1969-10-30 Waggonfabrik Jos Rathgeber A G Handlaufantrieb fuer eine fahrtreppe
CH485589A (de) * 1969-07-02 1970-02-15 Inventio Ag Gliederhandlauf für Fahrtreppen oder Personenförderbänder

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194616A (en) * 1977-03-11 1980-03-25 Barbedienne Roger Serge Helical conveyors
US4706800A (en) * 1980-09-17 1987-11-17 Davidson Mats Ingvar Device for conveyor tracks
EP0385276A2 (de) * 1989-02-28 1990-09-05 Otis Elevator Company Sich automatisch einstellender Antrieb für eine Halbleiste einer Fahrtreppe
EP0385276A3 (en) * 1989-02-28 1990-09-26 Otis Elevator Company Self adjustable escalator handrail drive
US4984671A (en) * 1990-07-11 1991-01-15 Otis Elevator Company Balustrade radius development for curved escalator
US5062520A (en) * 1990-07-11 1991-11-05 Otis Elevator Company Self adjustable handrail drive with separate drive chains
US5125494A (en) * 1991-09-03 1992-06-30 Montgomery Elevator Company Handrail drive mechanism for a passenger conveyor
US5207308A (en) * 1992-05-18 1993-05-04 Otis Elevator Company Moving handrail drive belt tensioning device
US5259492A (en) * 1992-12-30 1993-11-09 Otis Elevator Company Dual belt linear handrail drive
US5307920A (en) * 1993-09-14 1994-05-03 Otis Elevator Company Moving handrail drive
US5544730A (en) * 1994-03-01 1996-08-13 Otis Elevator Company Tension release for passenger conveyor
US5638937A (en) * 1995-01-13 1997-06-17 Inventio Ag Handrail drive system conversion
US5755315A (en) * 1995-06-30 1998-05-26 Otis Elevator Company Handrail drive for a passenger conveyor
US6450317B1 (en) * 2000-09-26 2002-09-17 Otis Elevator Company Escalator drive machine
US6685004B2 (en) 2000-09-26 2004-02-03 Otis Elevator Company Escalator drive machine
WO2005068340A1 (en) * 2004-01-16 2005-07-28 Escalator Handrail Company (Barbados) Inc. Positive drive handrail assembly
US20050173224A1 (en) * 2004-01-16 2005-08-11 Ronald H. Ball Positive drive handrail assembly
US7581631B2 (en) 2004-01-22 2009-09-01 Kone Corporation Travelator, moving ramp or escalator
US20070175731A1 (en) * 2004-01-22 2007-08-02 Kone Corporation Travelator, moving ramp or escalator
US7441644B2 (en) * 2004-01-22 2008-10-28 Kone Corporation Travelator, moving ramp or escalator
AU2005331536B2 (en) * 2005-05-05 2009-10-22 Otis Elevator Company Positive linear handrail drive with toothed belt
US20110083937A1 (en) * 2005-05-05 2011-04-14 Changsheng Guo Passenger conveyor handrail drive
WO2006121456A3 (en) * 2005-05-05 2007-08-09 Otis Elevator Co Positive linear handrail drive with toothed belt
WO2006121456A2 (en) * 2005-05-05 2006-11-16 Otis Elevator Company Positive linear handrail drive with toothed belt
US20090008217A1 (en) * 2005-05-05 2009-01-08 Otis Elevator Company Positive linear handrail drive with toothed belt
US7243775B2 (en) 2005-05-09 2007-07-17 Thomas Novacek Handrail for an escalator or moving walk and escalator or moving walk with such a handrail
KR101227736B1 (ko) * 2005-05-09 2013-01-29 인벤티오 아게 에스컬레이터 또는 무빙 워크용 핸드레일 및 이러한핸드레일을 갖는 에스컬레이터 또는 무빙 워크
EP1721861A1 (de) * 2005-05-09 2006-11-15 Inventio Ag Handlauf für eine Fahrtreppe oder einen Fahrsteig
US20060260906A1 (en) * 2005-05-09 2006-11-23 Thomas Novacek Handrail for an escalator or moving walk and escalator or moving walk with such a handrail
CN101679006B (zh) * 2007-06-01 2012-03-14 通力股份公司 负载均分扶手驱动设备
US7954619B2 (en) 2007-06-01 2011-06-07 Kone Corporation Load sharing handrail drive apparatus
US20080296125A1 (en) * 2007-06-01 2008-12-04 Kone Corporation Load sharing handrail drive apparatus
WO2008150455A3 (en) * 2007-06-01 2009-03-12 Kone Corp Load sharing handrail drive apparatus
US20150090558A1 (en) * 2012-01-06 2015-04-02 Otis Elevator Company Brake System for Passenger Conveyors
US10065839B2 (en) * 2012-01-06 2018-09-04 Otis Elevator Company Brake system for passenger conveyors
US20200207587A1 (en) * 2017-08-10 2020-07-02 Inventio Ag Handrail-drive system with drive elements integrated in the handrail
US10875745B2 (en) * 2017-08-10 2020-12-29 Inventio Ag Handrail-drive system with drive elements integrated in the handrail
US20190071286A1 (en) * 2017-09-01 2019-03-07 Kone Corporation Tension device for drive chain, method and escalator system using same
US10457524B2 (en) * 2017-09-01 2019-10-29 Kone Corporation Tension device for drive chain, method and escalator system using same

Also Published As

Publication number Publication date
DE2208694C2 (de) 1983-12-01
IT947836B (it) 1973-05-30
SE371415B (de) 1974-11-18
AT315736B (de) 1974-06-10
FR2126203B1 (de) 1976-10-29
FR2126203A1 (de) 1972-10-06
CH517044A (de) 1971-12-31
DE2208694A1 (de) 1972-08-31
GB1354255A (en) 1974-06-05

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