EP2394946A1 - Drive mechanism for drive chains of mechanical stairways and moving walkways - Google Patents
Drive mechanism for drive chains of mechanical stairways and moving walkways Download PDFInfo
- Publication number
- EP2394946A1 EP2394946A1 EP11380050A EP11380050A EP2394946A1 EP 2394946 A1 EP2394946 A1 EP 2394946A1 EP 11380050 A EP11380050 A EP 11380050A EP 11380050 A EP11380050 A EP 11380050A EP 2394946 A1 EP2394946 A1 EP 2394946A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chains
- gear wheels
- drive
- mechanism according
- wheels
- 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.)
- Withdrawn
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 35
- 238000010276 construction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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
-
- 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
- B66B23/028—Driving gear with separate drive chain or belt that engages directly the carrying surface chain
-
- 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
- B66B23/06—Driving gear for handrails with means synchronising the operation of the steps or the carrying belts and the handrails
Definitions
- the present invention relates to a drive mechanism for drive chains of mechanical stairways and moving walkways formed by gear wheels engaging two parallel drive chains linked to the steps or treadboards of the stairways or walkways.
- US patent 7168547 for example describes a system in which the chain is formed by a series of links having a gear-like toothing formed therein engaging a toothed belt.
- Patent GB 1371519 describes a system similar to the previously mentioned one in which the drive member that was previously a belt is now a transmission chain.
- Both described systems are based on a flexible transmission member (belt or chain) requiring maintenance and possibly having a limited service life, leading to its replacement during the service life of the stairway or walkway.
- the system described in the present invention engages a wheel directly on the articulations of the step or treadboard drive chain, whereby this flexible transmission member is avoided.
- the other construction additionally requires the use of links with gear-like teeth formed therein, the present invention uses a conventional chain, without needing to form any toothing on the link meshes.
- the object of the present invention is to overcome the described problems by means of a mechanism with a simple construction which can be used both in the horizontal head area, before the turning, and in the inclined area, making this second option a modular drive system for cases in which it is nessecary.
- the mechanism of the invention is formed by gear wheels engaging two parallel drive chains, which chains include free rotating rollers at the articulation points between links.
- the mechanism comprises at least one pair of gear wheels, one wheel for each drive chain.
- the wheels comprise at least three teeth each and engage the two parallel drive chains in coinciding straight trajectory runs thereof.
- the wheels can be driven by independent drive mechanisms or by a single drive mechanism if both wheels are assembled on one and the same shaft.
- the pair or pairs of gear wheels will drive the two parallel drive chains of the stairway or walkway which will in turn provide movement to the step or treadboard band.
- rollers of the coinciding straight runs of the two chains will simultaneously engage the two gear wheels, transferring linear movement to the system.
- the rollers can be made of metal, plastic, polyurethane, etc.
- the mechanism of the invention allows driving the chains in both directions by rotating the gear wheels clockwise or counter-clockwise, thereby allowing the forward of the treadboard or step band in the two movement directions, thus forming a reversible system.
- Each link of the chain can include just one roller at each end, coinciding with the articulation points with the adjacent links, or a roller at each end and at least one intermediate roller between articulations.
- the chain can further include an outer roller with respect to the links in each articulation arranged coaxially with the articulation shafts between consecutive links.
- These outer rollers can serve as a support means on guides in the areas where the system requires it.
- These outer rollers can also serve as engaging rollers for the gear wheels.
- the mechanism can be formed by two or more pairs of gear wheels. Each of these pairs will be assembled on an independent drive shaft, the gear wheels of each pair in all cases engaging the chains in coinciding straight trajectory runs thereof in both chains.
- At least the two gear wheels of the pair of wheels closest to the upper pair of the stairway can engage the forward and backward runs of the drive chains of both sides, whereas the gear wheels of the remaining pairs of gear wheels of the mechanism will only engage the forward run of the chains.
- the mechanism of the invention can also have means for driving the handrail.
- These means can consist of pulleys integral with the gear wheels, with a diameter equal to the pitch diameter of said gear wheels.
- the stairway will have guides in the turning areas of the chains, at least one of these guides being able to be provided with a tensing device for tensing the chains.
- Figure 1 shows a pair of gear wheels 1 which are assembled on one and the same shaft 2.
- each gear wheel 1 includes four teeth 3, being able to have three or more teeth.
- the chains 4 are formed by links 5 which are articulated through shafts 6, inner free rotating rollers 7 being assembled in coincidence with them.
- Outer rollers 8 which can serve as support means or engagement points with the wheels 1, as will be explained below, can further be assembled in the shafts 6.
- rollers 7 of the upper part or outgoing branch of the two chains 4 simultaneously engage the two gear wheels 1.
- the gear wheels 1 can rotate in the direction indicated by the arrows or in the opposite direction, such that the shifting of the step or treadboard band can take place in the two movement directions, thus forming a reversible system.
- the pair of gear wheels 1 assembled on one and the same shaft 2 can be arranged in straight runs of the chains 4 running in the horizontal position, as shown in Figure 3 , or in inclined runs, as shown in Figure 4 .
- the drive of the drive chains 4 can be at the head, before the turning of the chains.
- the shaft 2 on which each pair of gear wheels 1 is assembled can have a single drive mechanism 9 connected thereto formed for example by a motor or geared motor or by two drive mechanisms 9 and 10, as shown in Figure 6 , which in any case will be attached to the necessary couplings, depending on the location of the system, always within the structure of the rolling stairway or walkway.
- Figure 7 shows the constitution of the chain in greater detail in which there are assembled on the articulation shaft 6 between consecutive links 5 an inner free rotating roller 7 with which the teeth 3 of the gear wheels 1 engage and an outer roller 8 which will serve as a support, in the area where the system requires it, on known guides 11 of the system.
- the steps or treadboards will be located in the portion of the shafts 6 projecting towards the inner side of the stairway or walkway.
- the outer rollers 8 can also serve as engagement points of the teeth 3 of the gear wheels 1 as shown in Figure 8 .
- the gear wheels can thereby engage the inner rollers 7 or the outer rollers 8 of the chains.
- the shaft 6 of the rollers 7 and also the shaft 13 of the rollers 12 further describe a trajectory 14 in the engagement area that remains tangent to the pitch circle 16 of the wheel 1 at point 15.
- the speed of the chains 4 is thereby maintained constant.
- the teeth 3 of the gear wheels have a profile formed by two symmetrical convex curved side runs 10 conjugated with the geometry of the rollers 7 or 12 and linked to the passage of the chain 4.
- the teeth thus have a wrap-around profile to produce the engagement with the rollers 7, 8 or 12 of the chains.
- the mechanism could include two or more pairs of gear wheels 1-1', each pair assembled on an independent common shaft 2-2' of the other pairs, each of these shafts being linked to one or more drive mechanisms.
- the wheels 1 of the drive closest to the upper head preferably engage both sides of the stairway both in the forward path 18 and in the return path 19 of the drive chains. This double engagement has the purpose of reducing loads on the rollers in the upper turning because the rollers are subjected to the greatest loads in this turning. With this embodiment, the remaining wheels 1' of the drive located downstream from the wheels 1 would only engage in the forward path 18.
- the mechanism of the invention can also include the drive of the handrail integrated in the shaft of one of the pairs of gear wheels, as shown in Figure 13 .
- the gear wheels 1 have respective pulleys 20 fixed thereto having a diameter equal to the pitch diameter 16 of said gear wheels 1, Figure 11 , thus achieving a speed of the step band equal to the speed of the handrail.
- the guide 21 of at least one of the heads can include a tensing device 22 for tensing the chain 4 as shown in Figure 15 .
Landscapes
- Escalators And Moving Walkways (AREA)
- Gear Transmission (AREA)
Abstract
The invention relates to a drive mechanism for drive chains of mechanical stairways and moving walkways, comprising at least one pair of gear wheels (1) assembled on one and the same drive shaft (2), which wheels engage two parallel drive chains (4) in coinciding straight trajectory runs in both chains.
Description
- The present invention relates to a drive mechanism for drive chains of mechanical stairways and moving walkways formed by gear wheels engaging two parallel drive chains linked to the steps or treadboards of the stairways or walkways.
- Mechanical stairways and moving walkways usually move step or treadboard bands through chains attached to the steps or treadboards. These chains are usually driven through a gear wheel placed at the upper end which is driven by a geared motor. In this case, the chain wraps around the gear wheel. Due to the construction of the chain, a polygonal effect is usually created in which the speed of the chain does not maintain a constant value.
- Other constructions provide linear speed to the chain through systems in which the chain is driven in a straight part, usually through an intermediate belt or chain, which moves the chain forming the step or treadboard band.
- In this sense,
US patent 7168547 for example describes a system in which the chain is formed by a series of links having a gear-like toothing formed therein engaging a toothed belt. PatentGB 1371519 - Both described systems are based on a flexible transmission member (belt or chain) requiring maintenance and possibly having a limited service life, leading to its replacement during the service life of the stairway or walkway. The system described in the present invention engages a wheel directly on the articulations of the step or treadboard drive chain, whereby this flexible transmission member is avoided. The other construction additionally requires the use of links with gear-like teeth formed therein, the present invention uses a conventional chain, without needing to form any toothing on the link meshes.
- The object of the present invention is to overcome the described problems by means of a mechanism with a simple construction which can be used both in the horizontal head area, before the turning, and in the inclined area, making this second option a modular drive system for cases in which it is nessecary.
- The mechanism of the invention is formed by gear wheels engaging two parallel drive chains, which chains include free rotating rollers at the articulation points between links.
- According to the invention, the mechanism comprises at least one pair of gear wheels, one wheel for each drive chain. The wheels comprise at least three teeth each and engage the two parallel drive chains in coinciding straight trajectory runs thereof. The wheels can be driven by independent drive mechanisms or by a single drive mechanism if both wheels are assembled on one and the same shaft.
- The pair or pairs of gear wheels will drive the two parallel drive chains of the stairway or walkway which will in turn provide movement to the step or treadboard band.
- The rollers of the coinciding straight runs of the two chains will simultaneously engage the two gear wheels, transferring linear movement to the system. The rollers can be made of metal, plastic, polyurethane, etc.
- The mechanism of the invention allows driving the chains in both directions by rotating the gear wheels clockwise or counter-clockwise, thereby allowing the forward of the treadboard or step band in the two movement directions, thus forming a reversible system.
- Each link of the chain can include just one roller at each end, coinciding with the articulation points with the adjacent links, or a roller at each end and at least one intermediate roller between articulations.
- The chain can further include an outer roller with respect to the links in each articulation arranged coaxially with the articulation shafts between consecutive links. These outer rollers can serve as a support means on guides in the areas where the system requires it. These outer rollers can also serve as engaging rollers for the gear wheels.
- The mechanism can be formed by two or more pairs of gear wheels. Each of these pairs will be assembled on an independent drive shaft, the gear wheels of each pair in all cases engaging the chains in coinciding straight trajectory runs thereof in both chains.
- According to a possible embodiment, at least the two gear wheels of the pair of wheels closest to the upper pair of the stairway can engage the forward and backward runs of the drive chains of both sides, whereas the gear wheels of the remaining pairs of gear wheels of the mechanism will only engage the forward run of the chains.
- The mechanism of the invention can also have means for driving the handrail.
- These means can consist of pulleys integral with the gear wheels, with a diameter equal to the pitch diameter of said gear wheels.
- It should finally be pointed out that in the mechanism of the invention the stairway will have guides in the turning areas of the chains, at least one of these guides being able to be provided with a tensing device for tensing the chains.
- The attached drawings show a drive mechanism for drive chains of mechanical stairways and moving walkways formed according to the invention and provided by way of non-limiting example. In the drawings:
-
Figure 1 shows a perspective view of a pair of gear wheels assembled on a common shaft which is part of the mechanism of the invention. -
Figure 2 shows a perspective view of the set of gear wheels ofFigure 1 assembled in two parallel drive chains. -
Figure 3 shows a side elevational view of the mechanism of the invention positioned for driving at the head of the drive chains. -
Figure 4 is a view similar toFigure 3 , showing the positioning of the mechanism for driving in an inclined run of the drive chains. -
Figure 5 is a perspective view similar toFigure 1 , including a drive mechanism for the pair of gear wheels assembled on one and the same shaft. -
Figure 6 is a view similar toFigure 2 , with two drive mechanisms for the common shaft of a pair of gear wheels. -
Figure 7 shows a first embodiment of the drive chains. -
Figure 8 shows a perspective view of a possible type of engagement of the gear wheels with the chain ofFigure 7 . -
Figure 9 shows a perspective view of a second embodiment of the drive chains. -
Figure 10 shows a perspective view of the engagement between the gear wheels and the drive chain ofFigure 9 . -
Figure 11 shows a side elevational view with the condition of tangency between the teeth of the gear wheels and the rollers of the drive chains. -
Figure 12 shows a drive mechanism including two pairs of gear wheels. -
Figure 13 is a view similar toFigure 5 , showing an embodiment variant. -
Figures 14 and 15 show the turning system of the drive chains. - The constitution of the mechanism of the invention as well as the features and advantages thereof will be described below in further detail with the following description of the embodiment shown in the drawings described above.
-
Figure 1 shows a pair ofgear wheels 1 which are assembled on one and thesame shaft 2. In the depicted embodiment eachgear wheel 1 includes fourteeth 3, being able to have three or more teeth. - As shown in
Figure 2 , the twogear wheels 1 assembled on one and thesame shaft 2 engage as many otherparallel drive chains 4 in coinciding straight trajectory runs of said chains in bothchains 4. - The
chains 4 are formed bylinks 5 which are articulated throughshafts 6, inner free rotatingrollers 7 being assembled in coincidence with them.Outer rollers 8 which can serve as support means or engagement points with thewheels 1, as will be explained below, can further be assembled in theshafts 6. - In the embodiment depicted in
Figure 2 , therollers 7 of the upper part or outgoing branch of the twochains 4 simultaneously engage the twogear wheels 1. - The
gear wheels 1 can rotate in the direction indicated by the arrows or in the opposite direction, such that the shifting of the step or treadboard band can take place in the two movement directions, thus forming a reversible system. - The pair of
gear wheels 1 assembled on one and thesame shaft 2 can be arranged in straight runs of thechains 4 running in the horizontal position, as shown inFigure 3 , or in inclined runs, as shown inFigure 4 . In the first case the drive of thedrive chains 4 can be at the head, before the turning of the chains. - The
shaft 2 on which each pair ofgear wheels 1 is assembled can have asingle drive mechanism 9 connected thereto formed for example by a motor or geared motor or by twodrive mechanisms Figure 6 , which in any case will be attached to the necessary couplings, depending on the location of the system, always within the structure of the rolling stairway or walkway. -
Figure 7 shows the constitution of the chain in greater detail in which there are assembled on thearticulation shaft 6 betweenconsecutive links 5 an inner freerotating roller 7 with which theteeth 3 of thegear wheels 1 engage and anouter roller 8 which will serve as a support, in the area where the system requires it, on known guides 11 of the system. - The steps or treadboards will be located in the portion of the
shafts 6 projecting towards the inner side of the stairway or walkway. - The
outer rollers 8 can also serve as engagement points of theteeth 3 of thegear wheels 1 as shown inFigure 8 . - The gear wheels can thereby engage the
inner rollers 7 or theouter rollers 8 of the chains. -
Figure 9 shows an embodiment variant of the chains in which eachlink 5 includes an intermediateinner roller 12 located between theend rollers 7 assembled on thearticulation shafts 6 between consecutive links. Thisintermediate roller 12 will also be a free rotating roller assembled on the correspondingshaft 13. -
Figure 10 shows how theteeth 3 of thegear wheels 1 engage theintermediate roller 12 and theadjacent end rollers 7. -
Figure 11 shows the engagement between theteeth 3 of thegear wheels 1 and therollers Figures 9 and 10 , of the chains. - The
shaft 6 of therollers 7 and also theshaft 13 of therollers 12 further describe atrajectory 14 in the engagement area that remains tangent to thepitch circle 16 of thewheel 1 atpoint 15. The speed of thechains 4 is thereby maintained constant. - As seen in
Figure 11 , theteeth 3 of the gear wheels have a profile formed by two symmetrical convex curved side runs 10 conjugated with the geometry of therollers chain 4. The teeth thus have a wrap-around profile to produce the engagement with therollers - As shown in
Figures 1 and 2 , the mechanism could include two or more pairs of gear wheels 1-1', each pair assembled on an independent common shaft 2-2' of the other pairs, each of these shafts being linked to one or more drive mechanisms. Thewheels 1 of the drive closest to the upper head preferably engage both sides of the stairway both in theforward path 18 and in thereturn path 19 of the drive chains. This double engagement has the purpose of reducing loads on the rollers in the upper turning because the rollers are subjected to the greatest loads in this turning. With this embodiment, the remaining wheels 1' of the drive located downstream from thewheels 1 would only engage in theforward path 18. - The mechanism of the invention can also include the drive of the handrail integrated in the shaft of one of the pairs of gear wheels, as shown in
Figure 13 . Thegear wheels 1 haverespective pulleys 20 fixed thereto having a diameter equal to thepitch diameter 16 of saidgear wheels 1,Figure 11 , thus achieving a speed of the step band equal to the speed of the handrail. - With the mechanism of the invention the traction of the
chains 4 is always in straight trajectory runs thereof, so the turning in the head areas will be carried out by means ofguides 21, as depicted inFigure 14 . Theguide 21 of at least one of the heads can include a tensingdevice 22 for tensing thechain 4 as shown inFigure 15 .
Claims (8)
- A drive mechanism for drive chains of mechanical stairways and moving walkways by means of gear wheels (1) engaging two parallel drive chains (4), which include free rotating rollers at the articulation points between links, characterized in that it comprises at least one pair of gear wheels (1), which wheels comprise at least three teeth (3) each and engage two parallel drive chains (4) in coinciding straight trajectory runs in both chains.
- The mechanism according to claim 1, characterized in that the links (5) of the chains (4) comprise a roller (7) at each end coaxial with the articulation shaft (6) between consecutive links.
- The mechanism according to claim 1, characterized in that each link (5) of the chains includes a roller (7) at each end coinciding with each articulation point with adjacent links, and at least one intermediate roller (12) between the articulation points.
- The mechanism according to claims 1 to 3, characterized in that it comprises at least two pairs of gear wheels (1-1'), each of which pairs is assembled on an independent drive shaft (2-2') and engages the two chains (4) in coinciding straight trajectory runs of said chains.
- The mechanism according to claim 4, characterized in that the two gear wheels (1) of the pair of wheels closest to the upper head of the stairway engage the forward run (18) and return run (19) of the drive chains (4) of both sides, whereas the gear wheels (1') of the remaining pairs of gear wheels only engage the forward run (18) of the chains.
- The mechanism according to any of claims 1, 4 or 5, characterized in that the gear wheels (1-1') have fixed thereto pulleys (20) having a diameter equal to the pitch diameter (16) of said gear wheels for applying traction on the handrail.
- The mechanism according to the preceding claims, characterized in that it has guides (21) for the chains (4) in the turning areas.
- The mechanism according to claim 7, characterized in that at least one of the aforementioned guides includes a tensing device (22) for tensing the chains (4).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201030906A ES2350786B1 (en) | 2010-06-11 | 2010-06-11 | DRIVE CHAIN MECHANISM FOR MECHANICAL STAIRS AND MOBILE CORRIDORS. |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2394946A1 true EP2394946A1 (en) | 2011-12-14 |
Family
ID=43446477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11380050A Withdrawn EP2394946A1 (en) | 2010-06-11 | 2011-06-08 | Drive mechanism for drive chains of mechanical stairways and moving walkways |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2394946A1 (en) |
ES (1) | ES2350786B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013152714A1 (en) * | 2012-04-10 | 2013-10-17 | 通力股份公司 | Step chain used for conveyance system, sprocket and automatic walkway |
WO2018172361A1 (en) * | 2017-03-22 | 2018-09-27 | Burkhard Grobbel | Articulated chain drive, in particular for an escalator |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3297127A (en) * | 1963-11-19 | 1967-01-10 | Paul Dennerlein | Continuously moving stairway |
US3707220A (en) * | 1970-11-23 | 1972-12-26 | Westinghouse Electric Corp | Modular passenger conveyor construction |
GB1371519A (en) | 1970-11-23 | 1974-10-23 | Westinghouse Electric Corp | Conveyor drive unit system |
JPS5767485A (en) * | 1980-10-03 | 1982-04-24 | Mitsubishi Electric Corp | Conveyor device for passenger |
DE3239844A1 (en) * | 1981-11-04 | 1983-05-11 | Mitsubishi Denki K.K., Tokyo | Drive device for a passenger conveyor |
DE29722133U1 (en) * | 1997-12-15 | 1998-04-09 | Thyssen Aufzüge GmbH, 73765 Neuhausen | Escalator |
JP2001130856A (en) * | 1999-11-05 | 2001-05-15 | Hitachi Ltd | Passenger conveyor |
EP1602616A1 (en) * | 2003-03-07 | 2005-12-07 | Toshiba Elevator Kabushiki Kaisha | Passenger conveyor |
US20060027438A1 (en) * | 2003-01-07 | 2006-02-09 | Fargo Richard N | Passenger conveyor drive mobile arrangement |
US7168547B2 (en) | 2003-02-07 | 2007-01-30 | Otis Elevator Company | Passenger conveyor drive machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB117240A (en) * | 1918-03-06 | 1918-07-11 | Waygood Otis Ltd | Improvements in and relating to Moving Stairways for Passengers. |
US3658166A (en) * | 1969-04-04 | 1972-04-25 | Hitachi Ltd | Conveying apparatus with endless chain means |
JPS558434B2 (en) * | 1974-05-24 | 1980-03-04 | ||
JPH03147696A (en) * | 1989-11-02 | 1991-06-24 | Hitachi Ltd | Escalator having intermediate horizontal part |
JP3817685B2 (en) * | 1999-12-10 | 2006-09-06 | 株式会社日立製作所 | Double drive passenger conveyor |
-
2010
- 2010-06-11 ES ES201030906A patent/ES2350786B1/en not_active Expired - Fee Related
-
2011
- 2011-06-08 EP EP11380050A patent/EP2394946A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3297127A (en) * | 1963-11-19 | 1967-01-10 | Paul Dennerlein | Continuously moving stairway |
US3707220A (en) * | 1970-11-23 | 1972-12-26 | Westinghouse Electric Corp | Modular passenger conveyor construction |
GB1371519A (en) | 1970-11-23 | 1974-10-23 | Westinghouse Electric Corp | Conveyor drive unit system |
JPS5767485A (en) * | 1980-10-03 | 1982-04-24 | Mitsubishi Electric Corp | Conveyor device for passenger |
DE3239844A1 (en) * | 1981-11-04 | 1983-05-11 | Mitsubishi Denki K.K., Tokyo | Drive device for a passenger conveyor |
DE29722133U1 (en) * | 1997-12-15 | 1998-04-09 | Thyssen Aufzüge GmbH, 73765 Neuhausen | Escalator |
JP2001130856A (en) * | 1999-11-05 | 2001-05-15 | Hitachi Ltd | Passenger conveyor |
US20060027438A1 (en) * | 2003-01-07 | 2006-02-09 | Fargo Richard N | Passenger conveyor drive mobile arrangement |
US7168547B2 (en) | 2003-02-07 | 2007-01-30 | Otis Elevator Company | Passenger conveyor drive machine |
EP1602616A1 (en) * | 2003-03-07 | 2005-12-07 | Toshiba Elevator Kabushiki Kaisha | Passenger conveyor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013152714A1 (en) * | 2012-04-10 | 2013-10-17 | 通力股份公司 | Step chain used for conveyance system, sprocket and automatic walkway |
CN103359596A (en) * | 2012-04-10 | 2013-10-23 | 通力股份公司 | Pedal chain, chain wheel and moving sidewalk for conveyance system |
WO2018172361A1 (en) * | 2017-03-22 | 2018-09-27 | Burkhard Grobbel | Articulated chain drive, in particular for an escalator |
Also Published As
Publication number | Publication date |
---|---|
ES2350786A1 (en) | 2011-01-27 |
ES2350786B1 (en) | 2011-07-28 |
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