EP1731472A1 - Poulie d'entraînement pour une main-courante flexible - Google Patents

Poulie d'entraînement pour une main-courante flexible Download PDF

Info

Publication number
EP1731472A1
EP1731472A1 EP06114909A EP06114909A EP1731472A1 EP 1731472 A1 EP1731472 A1 EP 1731472A1 EP 06114909 A EP06114909 A EP 06114909A EP 06114909 A EP06114909 A EP 06114909A EP 1731472 A1 EP1731472 A1 EP 1731472A1
Authority
EP
European Patent Office
Prior art keywords
wheel
transmission element
force transmission
handrail
reinforcing insert
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
EP06114909A
Other languages
German (de)
English (en)
Other versions
EP1731472B1 (fr
Inventor
Thomas Novacek
Thomas Illedits
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP06114909A priority Critical patent/EP1731472B1/fr
Publication of EP1731472A1 publication Critical patent/EP1731472A1/fr
Application granted granted Critical
Publication of EP1731472B1 publication Critical patent/EP1731472B1/fr
Not-in-force 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
    • B66B23/02—Driving gear
    • B66B23/04—Driving gear for handrails

Definitions

  • the invention relates to a wheel for driving a flexible handrail of an escalator or a moving walkway according to claim 1.
  • Escalators and moving walkways generally have laterally fixed balustrades.
  • band-shaped handrails are mounted, which move relative to the balustrades as synchronously as possible with the tread elements of escalators or moving walks.
  • the handrails consist essentially of a flexible band and can be driven by a wheel, which in turn is directly or indirectly driven by a motor. This wheel can simultaneously act as a diverter to divert the handrail where a change in direction of the handrail is required.
  • Handrails should be driven as continuously as possible, ie without jerking, and as quietly as possible, and the wheel and the handrail itself should be designed so that noises and signs of wear are minimized.
  • slip-stick effects are instability effects associated with parameters that affect the sliding friction and static friction between the handrail and the contact surface of the handrail-driving wheel.
  • a sliding of the handrail relative to the wheel should be avoided, which means that the static friction should not be less than a certain amount. In practice, however, it often happens that briefly sliding occurs, what with an A-qua-planning can be compared and gives the mentioned slip-stick effect.
  • a known wheel for driving a handrail has been substantially formed as a driving wheel tire.
  • the drift tire is filled with a filler such as compressed air or a noble gas.
  • Themaschineradsammlung acts as a power transmission element by its outer peripheral surface under pressure against the inner surface of the handrail, so that upon rotation of themaschineraditess the handrail is driven by acting between the power transmission element and the handrail stiction.
  • the object of the invention is therefore to propose a wheel for driving a handrail of an escalator or a moving walkway, with which the disadvantages of the prior art are avoided.
  • the main advantages of the new wheel are the prevention of the slip-stick effect between the wheel and the handrail and the prevention of bead formation in the contact area between the wheel and the handrail.
  • the slip-stick effect is mainly determined by the ratio of static friction and sliding friction between the outer peripheral surface of the gas pressure-loaded tire casing the handrail.
  • the type of friction is essentially dependent firstly on the coefficient of adhesion or sliding friction between the materials of the tire casing and the handrail, which in turn are influenced by the surface structure or surface roughness; second, the pressure under which the tire casing rests against the handrail; and thirdly, the extent of the contact surface between the tire casing and the handrail.
  • the beading is essentially dependent on the respective material stiffness together with the material thickness, as depending on the contact area between the tire casing and handrail both in the direction of movement and transversely to form beads that have vibrations and thus noise and wear result.
  • the noise is reduced in the mass, as it depends on the energy that is released in the transition from static friction to sliding friction.
  • the noise is reduced in the mass, as it is caused by the aforementioned vibrations.
  • the wear of the affected components and the required drive power are reduced while driving comfort is increased.
  • the inventive wheel for driving a flexible handrail of an escalator or a moving walkway has a tire with a compressed-gas-filled tire casing.
  • the tires forms on their peripheral surface a recess or recess which extends in the circumferential direction and which has approximately the shape of a U in the present embodiment.
  • an approximately ring or cylinder jacket-shaped force transmission element is added.
  • the outer peripheral surface of the force transmission element forms the contact surface, which is intended to rest on the handrail.
  • the force transmission element can be formed, for example, from an elastomer such as NR, SBR or HNBR.
  • the force transmission element has a relatively hard reinforcing insert with a low elastic deformation capability. The reinforcing insert increases the stiffness of the tires. As a result, a tire casing can be selected which is relatively easily elastically deformable, so that the entire tire fits snugly against the handrail without undesirable side effects occurring.
  • the reinforcing insert While in the tires of a vehicle reinforcing inserts are usually arranged integrally and laterally or radially, the reinforcing insert is arranged in the separate power transmission element in the new wheel.
  • the power transmission element and thus the reinforcing insert have relatively small radial dimensions.
  • the tires on the wheel according to the invention does not have the task to facilitate tracking and to prevent floating, but it serves primarily primarily to ensure a sufficient pressure and a sufficiently high coefficient of friction, so between the wheel and the Handrail without interruption Stiction comes to a halt.
  • the reinforcing insert is preferably completely embedded in the material of the actual force transmission element.
  • a suitable choice of material for the reinforcing insert and projections of the reinforcing insert can protrude radially through the material of the reinforcing insert to the outside and rest against the handrail.
  • the reinforcing insert may comprise individual circumferentially extending reinforcing bodies and / or circumferentially extending woven, knitted or knitted fabric.
  • the outer peripheral surface of the force transmission element preferably has ribs on which the contact surface is formed.
  • the ribs may be circumferentially or at an angle, possibly even perpendicular to the circumferential direction (i.e., parallel to the axis of rotation).
  • the outer circumferential surface of the power transmission element may also have a plurality of projections on which the contact surface is formed.
  • the structure on which the contact surface is formed may be in accordance with the reinforcing insert so that the reinforcing insert supports the projecting portions of the structure.
  • the tires of the new wheel usually has a single power transmission element. But it is also possible to divide the power transmission element into a plurality of sub-elements, wherein such sub-elements form sectors and / or may be arranged adjacent to each other in the direction of the axis of rotation. Adjacent part elements are preferably each received in their own recesses of the tire casing.
  • the wheel is driven by a driving stick, which in EP1464609 was presented.
  • the drive stick engages the step chain and turns the wheel which either on the palm top or bottom in contact with the Handrail comes and moves the handrail.
  • the wheel may also be driven by a conventional handrail drive unit, eg, friction wheel.
  • Fig. 1 shows a wheel 10 according to the invention, which is rotatable about an axis of rotation A and a handrail 11 drives.
  • the handrail 11 is located at the upper edge of a balustrade 12, which is arranged laterally by tread elements, not shown, of the escalator and the moving walk.
  • the handrail 11 is in this case along almost 180 ° on the wheel 10 at.
  • the drive of the wheel 10 takes place, for example, by a motor 13 via an endless element 14 and a drive wheel 15.
  • a deflection wheel 16 is provided.
  • the wheel 10 is attached to a stationary support structure 17 in a conventional manner.
  • the wheel 10 has a tire 20 with a tire casing 30 and a force transmission element 40.
  • the tire casing 30 has two side surfaces 32, 33 and two rounding surfaces 34, 35 adjoining them.
  • the rounding surfaces 34, 35 extend to a recess or recess 36 on the circumference of the tire casing 30, which has approximately the shape of a U.
  • the power transmission element 40 is received.
  • the power transmission element 40 has a reinforcing insert 42, which is completely embedded in the present embodiment, the material of the power transmission element 40 and enclosed by this.
  • the outer circumferential surface of the power transmission element 40 has in the present embodiment, a structure which is formed by circumferentially extending ribs 44.
  • the structure of the outer circumferential surface of the force transmission element 42 may also have ribs which extend transversely, if necessary. Vertically, to the circumferential direction. Instead of ribs 44, the structure may also be formed by knob-like projections.
  • the outer peripheral surface of the force transmission element preferably has ribs on which the contact surface is formed.
  • the ribs may extend in the circumferential direction or at an angle, if necessary. Even perpendicular to the circumferential direction (ie parallel to the axis of rotation).
  • the outer peripheral surface of the power transmission member has a plurality of protrusions (e.g., in the form of ribs 44 or nubs) on or through which the contact surface 46 is formed.
  • a plurality of protrusions e.g., in the form of ribs 44 or nubs
  • the structure on which the contact surface 46 is formed is formed in correspondence with the reinforcing insert 44 so that the reinforcing insert 44 supports the projecting portions of the structure.
  • Embodiments in which the outer peripheral surface of the force transmitting member has ribs 44 that are perpendicular to the circumferential direction have proven particularly useful. Also possible are ribs 44, which extend at an angle to the circumferential direction, or which are parallel to the circumferential direction (longitudinal grooves / ribs).
  • the power transmitting member 40 can be displaced outward so as to increase the contact pressure with respect to the inside of the handrail 11.

Landscapes

  • Escalators And Moving Walkways (AREA)
EP06114909A 2005-06-07 2006-06-02 Poulie d'entraînement pour une main-courante flexible Not-in-force EP1731472B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06114909A EP1731472B1 (fr) 2005-06-07 2006-06-02 Poulie d'entraînement pour une main-courante flexible

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05104964 2005-06-07
EP06114909A EP1731472B1 (fr) 2005-06-07 2006-06-02 Poulie d'entraînement pour une main-courante flexible

Publications (2)

Publication Number Publication Date
EP1731472A1 true EP1731472A1 (fr) 2006-12-13
EP1731472B1 EP1731472B1 (fr) 2013-03-27

Family

ID=35197679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06114909A Not-in-force EP1731472B1 (fr) 2005-06-07 2006-06-02 Poulie d'entraînement pour une main-courante flexible

Country Status (7)

Country Link
US (1) US7255217B2 (fr)
EP (1) EP1731472B1 (fr)
CN (1) CN100526194C (fr)
BR (1) BRPI0602157A (fr)
CA (1) CA2549406C (fr)
ES (1) ES2416680T3 (fr)
HK (1) HK1101379A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042392A1 (fr) * 2003-11-03 2005-05-12 Kone Corporation Tapis roulant
FI20040167A (fi) * 2004-02-03 2005-08-04 Kone Corp Liukukäytävä, -ramppi tai -porras
EP2400552A1 (fr) * 2010-06-24 2011-12-28 Dialog Semiconductor GmbH Structure de transistor MOS dotée d'un accès facile à tous les noeuds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6199678B1 (en) * 1997-11-03 2001-03-13 Lg Industrial Systems Co., Ltd. Hand rail driving apparatus for escalator
EP1464609A1 (fr) * 2003-04-04 2004-10-06 Inventio Ag Propulsion pour la main courante d'un escalator ou d'un trottoir roulant
WO2004108581A1 (fr) * 2003-06-04 2004-12-16 Semperit Aktiengesellschaft Holding Main courante, systeme de guidage de main courante, et systeme d'entrainement de main courante pour escalier roulant ou tapis roulant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653484A (en) * 1971-03-03 1972-04-04 Otis Elevator Co Handrail driving assembly for belt type moving passenger conveyors
US4618387A (en) * 1985-03-08 1986-10-21 Westinghouse Electric Corp. Splicing methods for an extruded handrail
DE69429678T2 (de) * 1993-10-01 2002-08-14 Mitsubishi Heavy Ind Ltd Handlaufmechanismus für sich bewegende Gehsteige mit variabler Geschwindigkeit
DE19742258A1 (de) * 1997-09-25 1999-04-01 New York Hamburger Gummi Waare Handlauf für Fahrtreppen und Fahrsteige
ZA200402148B (en) * 2003-04-04 2004-09-29 Inventio Ag Handrail-drive for an escalator or a moving walk.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6199678B1 (en) * 1997-11-03 2001-03-13 Lg Industrial Systems Co., Ltd. Hand rail driving apparatus for escalator
EP1464609A1 (fr) * 2003-04-04 2004-10-06 Inventio Ag Propulsion pour la main courante d'un escalator ou d'un trottoir roulant
WO2004108581A1 (fr) * 2003-06-04 2004-12-16 Semperit Aktiengesellschaft Holding Main courante, systeme de guidage de main courante, et systeme d'entrainement de main courante pour escalier roulant ou tapis roulant

Also Published As

Publication number Publication date
BRPI0602157A (pt) 2007-02-21
CA2549406A1 (fr) 2006-12-07
US7255217B2 (en) 2007-08-14
CA2549406C (fr) 2014-09-09
HK1101379A1 (en) 2007-10-18
US20060272925A1 (en) 2006-12-07
ES2416680T3 (es) 2013-08-02
CN100526194C (zh) 2009-08-12
CN1876551A (zh) 2006-12-13
EP1731472B1 (fr) 2013-03-27

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