CN101028904B - Passenger elevator - Google Patents
Passenger elevator Download PDFInfo
- Publication number
- CN101028904B CN101028904B CN2007100923774A CN200710092377A CN101028904B CN 101028904 B CN101028904 B CN 101028904B CN 2007100923774 A CN2007100923774 A CN 2007100923774A CN 200710092377 A CN200710092377 A CN 200710092377A CN 101028904 B CN101028904 B CN 101028904B
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- mentioned
- guide rail
- trailing wheel
- roller
- sides
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- Expired - Fee Related
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Abstract
Provided is a passenger conveyer which will not do harm to the skirt type armor plate during its operation, without generating noises. A plurality of rungs (2) are set annularly inside the girders (1). The fore wheel rolling wheels (3) are mounted at the frontend sides at both sides of each rungs, and the back wheel rolling wheels (4) are mounted at the back-end sides. An annular rungs chain (5) is mounted at both sides of the rungs, being connected with each rung. Furthermore, a fore wheel extensible guide (8) which extends along the advancing direction of rungs and used for guiding the fore wheel rolling wheel and a back wheel extensible guide (9) which extends along the advancing direction of rungs and used for guiding the back wheel rolling wheel are mounted at both sides of the rungs. The back wheel extensible guide (9) has a limitation part (9a) which projects perpendicularity to the rolling wheel guiding surface and extends along the advancing direction of rungs. The back wheel rolling wheel comprises a friction part (24) which is connected slidaby with the limitation part (9a) and used for executing limitations at the advancing direction of rungs.
Description
Technical field
The present invention relates to passenger conveyors such as escalator or moving sidewalk.
Background technology
Fig. 1 is the lateral plan of the schematic configuration of the general escalator of expression, and Fig. 2～Fig. 4 is the A-A line cutaway view of Fig. 1, and Fig. 5 is the approximate three-dimensional map of step.
In Fig. 1,1 for being erected at the truss between the floor, and portion is provided with a plurality of steps 2 (having omitted a part) circlewise within it.
In the two sides of each step 2, by bearing (not shown) front-wheel roller 3 is installed in front freely to rotate, by bearing (not shown) trailing wheel roller 4 is installed in rear end side freely to rotate.
Each step 2 links to each other by the annular step chains 5 (with reference to Fig. 2) that is arranged on its both sides.One end of step chains 5 combines with the driving ladder sprocket wheel 6 that is supported in truss 1 one ends freely to rotate, and the other end combines with the driven ladder sprocket wheel 7 that is supported in truss 1 other end freely to rotate.
The trailing wheel guide rail 9 that is provided with front-wheel guide rail 8 that front-wheel roller 3 is led in the both sides of step 2, trailing wheel roller 4 is led. Guide rail 8,9 extends at the direct of travel of step respectively, is fixed on the truss 1 by bolt etc.
Driving motor 10 is arranged on an end of truss 1, be fixed on its turning cylinder ladder sprocket wheel 11 by driving chain 12 be installed in the ladder sprocket wheel (not shown) that drives on 6 one sides of ladder sprocket wheel and link to each other.
When driving motor 10 was driven, its turning effort was sent to by driving chain 12 and drives ladder sprocket wheel 6, and step chains 5 moves along its length, and each step 2 circulations are moved.
On the top of truss 1, the direct of travel two edge-on balustrade panel 13 that are provided with at step 2 are free to slide twelve Earthly Branches by balustrade panel 14 and hold handrail 15 on its circumference.
This handrail 15 is in transmission connection with driving ladder sprocket wheel 6 by not shown handrail drive mechanism, and with step 2 synchronously equidirectional to move with speed.
In addition, as shown in Figure 2, be provided with the pin that is used to prevent the passenger in the both sides of step 2 and sandwiched skirt guard (skirt guar panel) 18 between step 2 and the truss 1.This skirt guard 18 is installed on the truss 1 by the holding components 27 of section L font, and is provided with a plurality of in the both sides of step 2 as the direct of travel along step 2 with disposing.And by the bracket 28 of section L font, side plate 29 is installed on the two sides of truss 1 abreast with the direct of travel of step 2.
Front-wheel roller 3 is installed in and is fixed on the step 2 and on the two ends of the axle 16 that left and right directions extends, the tabular friction part of being made by the good resin of abrasion performance 17 is installed on its lateral surface.
In this example, step chains 5 is roller chains, has the ladder sprocket wheel roller 5a that is arranged on each front-wheel roller 3 inboards.This ladder sprocket wheel roller 5a and engagement at the bottom of the tooth that drives ladder sprocket wheel 6, and be installed on the axle 16.
On the lateral border of the roller spigot surface of front-wheel guide rail 8, be formed with restrictions 8a outstanding and that extend along the direct of travel of step 2 to vertical direction.The friction part 17 that is installed on the lateral surface of front-wheel roller 3 slips with the inboard of this restrictions 8a, and front-wheel roller 3 is limited at direct of travel thus.
Thus, the mobile of the left and right directions of step 2 is limited, and keeps the rectilinear propagation of step 2.
Fig. 3 represents that step chains 5 is situations of conveyer chain.In addition, use same reference numerals to represent identical or similar portions, and omit repeat specification with example shown in Figure 2.
Conveyer chain is, between the end of a plurality of connecting panel 5b that are oppositely arranged, roller 5c is set, this roller 5c by turning cylinder 5d freely to rotate axle be supported on the connecting panel 5b of both sides, by this turning cylinder 5d, the end of the connecting panel 5b of adjacency links to each other each other freely to rotate.
In addition, the double front-wheel roller 3 of doing of roller 5c.The friction part that the restrictions 8a that yet roller 5c goes up does not have installation and front-wheel guide rail 8 slips.
And roller shaft 20 is outstanding in the installation position of the step 2 of step chains 5, so that it is fixing with axle 19 that the step of pair of right and left can be installed.Roller shaft 20 is axially inserting with axle 19 with respect to step is fixing with being free to slide, and step chains 5 can freely move laterally.
Resinous guide block (guard shoe) 21 is installed on the two sides of step 2, slips by guide block 21 medial surface with skirt guard 18, and step 2 is limited at direct of travel.
Between the restrictions 8a of front-wheel guide rail 8 and roller 5c, be formed with the gap, make the size in this gap bigger than the gap between guide block 21 and the skirt guard 18, and at guide block 21 with before skirt guard 18 contacts, make roller 5c discord restrictions 8a contact.Because step chains 5 can move laterally, so restrictions 8a is set for the disengaging that prevents roller 5c.
Fig. 4 represents that step chains 5 is conveyer chains, situation about the direct of travel of step 2 being limited by roller 5c.About the axle 16 that extends be installed on the installation position of step 2 of step chains 5, and step 2 is fixed thereon.Friction part 17 is installed on the two sides of front-wheel roller 3 of fixed position of step 2.
The outstanding upward and restrictions 8a that extend along the direct of travel of step 2 in the left and right sides that on a front-wheel guide rail 8A, is arranged on the roller spigot surface, slip with this restrictions 8a by friction part 17, come front-wheel roller 3 is led, and step 2 is limited in direct of travel.In addition, another front-wheel guide rail 8B does not have this restrictions 8a.
In above-mentioned prior art, owing to limit, but do not limit in trailing wheel roller 4 sides by the direct of travel of 3 pairs of steps 2 of front-wheel roller, therefore producing with front-wheel roller 3 is phenomenon about trailing wheel roller 4 sides of starting point, step 2 rely on.
As shown in Figure 5, usually on step 2, resinous コ font clamping plate (cleat) 22 are set along front-end edge and both side edges, about even front-wheel guide rail 3 sides of step 2 rely on, clamping plate 22 contact with skirt guard 18, skirt guard 18 is not subjected to big damage yet.
On the other hand, the back side of step 2 is that the below of clamping plate 22 is the riser 23 of aluminum, when it contacts with skirt guard 18, makes the surface of skirt guard 18 be subjected to very macrolesion.
And, in structure shown in Figure 3, have following problems, promptly contact with skirt guard 18, therefore when generation between the skirt guard 18 is differential, owing to guide block 21 and this differential collision produce noise owing to guide block 21.
Summary of the invention
The present invention carries out in view of the problems referred to above, and its objective is provides a kind of passenger conveyors, does not damage skirt guard when operation, and, do not produce noise.
To achieve these goals, being characterized as of passenger conveyors of the present invention possesses: Pei Zhi a plurality of steps annularly; Be installed in the front-wheel roller of front of the two sides of each step; Be installed in the trailing wheel roller of rear end side of the two sides of each step; Be arranged on the step both sides, the step chains of the ring-type that links to each other with each step; Be arranged on the step both sides, extend along the direct of travel of step, and the front-wheel guide rail that the front-wheel roller is led; Be arranged on the step both sides, direct of travel along step extends, and the trailing wheel guide rail that the trailing wheel roller is led, the trailing wheel guide rail has the vertically outstanding and restrictions that extend at the direct of travel of step from its roller spigot surface, the trailing wheel roller has tabular friction part, this tabular friction part by slipping with above-mentioned restrictions at the above-mentioned step of direction of travel restriction.
A kind of passenger conveyors is characterized in that, possesses: Pei Zhi a plurality of steps annularly; Skirt guard is arranged on the both sides of above-mentioned step, and the front-wheel roller is installed in the front of the two sides of above-mentioned each step; The trailing wheel roller is installed in the rear end side of the two sides of above-mentioned each step; The step chains of ring-type, be arranged on above-mentioned step both sides, link to each other with above-mentioned each step; The front-wheel guide rail, be arranged on above-mentioned step both sides, extend along the direct of travel of above-mentioned step, and above-mentioned front-wheel roller is led; And trailing wheel guide rail, be arranged on the both sides of above-mentioned step, direct of travel along above-mentioned step extends, and above-mentioned trailing wheel roller is led, above-mentioned front-wheel guide rail has from its roller spigot surface vertically outstanding, and the restrictions of on the direct of travel of above-mentioned step, extending, above-mentioned trailing wheel guide rail has from its roller spigot surface vertically outstanding, and the restrictions of on the direct of travel of above-mentioned step, extending, above-mentioned trailing wheel roller has tabular friction part, this tabular friction part limits above-mentioned step on direct of travel by slipping with the restrictions of above-mentioned trailing wheel guide rail, satisfy following relation in above-mentioned passenger conveyors:
a＞b＞c，
Wherein, a represents the gap between above-mentioned step and the above-mentioned skirt guard, and b represents the restrictions of above-mentioned front-wheel guide rail and the gap between the above-mentioned front-wheel roller, and c represents the restrictions of above-mentioned trailing wheel guide rail and the gap between the above-mentioned trailing wheel roller.
According to the present invention,, therefore do not damage skirt guard because the step rear end side does not contact with skirt guard.And, owing to step is not led, therefore do not produce noise by skirt guard yet.
Description of drawings
Fig. 1 is the lateral plan of the schematic configuration of the general escalator of expression;
Fig. 2 is the A-A line cutaway view of Fig. 1;
Fig. 3 is the A-A line cutaway view of Fig. 1;
Fig. 4 is the A-A line cutaway view of Fig. 1;
Fig. 5 is the approximate three-dimensional map of step;
Fig. 6 is the cutaway view of the passenger conveyors of embodiment;
Fig. 7 is the amplification view of the key position of Fig. 6;
Fig. 8 is the figure that sees Fig. 7 from the B direction;
Fig. 9 is the amplification view of key position of the variation of embodiment;
Figure 10 is the figure that sees Fig. 9 from the C direction.
The specific embodiment
With reference to the accompanying drawings an embodiment of the invention are described below.Fig. 6 is the cutaway view of the passenger conveyors of present embodiment, and Fig. 7 is the amplification view of the key position of Fig. 6, and Fig. 8 is the figure that sees Fig. 7 from the B direction.
In addition, in the present embodiment, represent and the same or analogous part of above-mentioned prior art, clipped repeat specification by identical Reference numeral.
And identical with above-mentioned prior art, the passenger conveyors of present embodiment has balustrade panel, handrail, drive wheel, flower wheel, driving motor, driving ladder sprocket wheel etc., but omits the diagram of these parts.
As shown in Figure 6, this passenger conveyors possesses a plurality of steps 2 (an only diagram part) that are provided with in truss 1 inner annular.Front-wheel roller 3 is installed in the front of each step 2 two sides, trailing wheel roller 4 is installed in rear end side.Front-wheel roller 3 is by front-wheel guide rail 8 guiding that are installed on the truss 1, and trailing wheel roller 4 is by trailing wheel guide rail 9 guiding that are installed on the truss 1.
The step chains 5 of ring-type is arranged on the both sides of step 2, and this step chains 5 links to each other with each step 2.In the present embodiment, step chains 5 is conveyer chains, a plurality of connecting panel 5b that are oppositely arranged and be arranged on a plurality of underloads roller 5c between the connecting panel 5b with having left and right sides devices spaced apart.Each roller 5c is supported on the connecting panel 5b freely to rotate by axle 5d.
A plurality of roller 5c are arranged on a side of 1 step 2, and one of them is installed on the step 2, are also used as front-wheel roller 3.In addition, though not shown, roller 5c is made of the inner ring portion that is supported in the ring-type on the 5d by bearing freely to rotate, the outer ring portion that is integrally formed in the ring-type of its peripheral part, because inner ring portion needs rigidity, therefore is made of the material harder than outer ring portion.
The lateral border that front-wheel guide rail 8 has a face from it is outstanding and restrictions 8a that extend along the direct of travel of step 2 to vertical direction, but roller 5c does not have friction part at lateral surface, does not contact with restrictions 8a when advancing usually.This restrictions 8a is not used at direct of travel step 2 is limited, and is used to prevent the disengaging of roller 5c.
In the present embodiment, front-wheel guide rail 8 bears along its total length from downside supports front-wheel roller 3, and restrictions 8a is outstanding towards the top.Thus, have commonization that can realize, and improve the advantage of commonality with the front-wheel guide rail that uses at other escalator.
In addition, be under the situation of roller chain in step chains 5, front-wheel roller 3 is independent respectively with step chains 5, and only the part in the installation step chains 5 of step 2 is provided with front-wheel roller 3.
At this moment, front-wheel roller 3 is heavy lift rollers, is made of the inner ring portion of ring-type, the outer ring portion that is integrally formed in the ring-type of its peripheral part, because inner ring portion needs rigidity, therefore is made of the material harder than outer ring portion.And, friction part is not set on the two sides of front-wheel roller 3.
And, in the present embodiment, tabular friction part 24 is set on the lateral surface of trailing wheel roller 4, the lateral border setting of the roller spigot surface of trailing wheel guide rail 9 towards vertical direction outstanding and restrictions 9a that extend along the direct of travel of step 2, by friction part 24 and the medial surface of this restrictions 9a are slipped, step 2 is limited in direct of travel.
In the present embodiment, trailing wheel guide rail 9 bears along its total length from downside supports trailing wheel roller 4, and restrictions 9a is outstanding towards the top.Thus, have commonization that can realize, and improve the advantage of commonality with the trailing wheel guide rail that uses at other escalator.
As shown in Figure 7, trailing wheel roller 4 comprises: the 4a of inner ring portion of the ring-type of being made by aluminium etc. and surrounding is fixed on the 4b of outer ring portion of the annular of being made by polyurethane adhesive etc. of its peripheral part.The 4a of inner ring portion is installed in from the both sides, rear portion of step 2 on the outstanding 2a of support sector in side freely to rotate by a plurality of bearings 26.These bearings 26 are arranged in 1 vertical surface VF with centre line C L (turning cylinder of the trailing wheel roller 4) quadrature of the 2a of support sector.Thus, owing to can reduce the thickness of trailing wheel roller 4, therefore can reduce escalator single-piece size at left and right directions.
And the friction part 24 of ring-type is fixed on the lateral surface of the 4a of inner ring portion by screw 25.In addition, because the 4a of inner ring portion needs rigidity, therefore by constituting than the high material of the 4b of outer ring portion resistance to abrasion.This friction part 24 and trailing wheel roller 4 are arranged on than the side 2b of step 2 in the inner part.Thus, owing to can make trailing wheel guide rail 9 rely on the inboard, therefore also can make other parts also rely on the inboard, and can reduce escalator single-piece size at left and right directions.
In addition, Fig. 9 and Figure 10 represent modified embodiment of the present embodiment, and Fig. 9 is the amplification view of key position, and Figure 10 is the figure that sees Fig. 9 from the C direction.In this embodiment, trailing wheel roller 4 is the structure that the 4a of inner ring portion, the 4b of outer ring portion and friction part 24 form.At this moment, have and to reduce number of components, and reduce the advantage of Fabrication procedure.
The 4a of inner ring portion is installed in from the rear portion, side of step 2 on the outstanding 2a of support sector in side freely to rotate by bearing 26, owing to need rigidity, and therefore by constituting than the outer ring portion hard material of 4b.
In this structure,, so the gap between step 2 and the skirt guard 18 is being made as a, when the restrictions 8a of front-wheel guide rail 8 and the gap between the front-wheel roller 3 are made as b, need making a＞b because step 2 can not contact with skirt guard 18.
And, do not contact in order to make with skirt guard 18 than the front of step 2 riser 23 (with reference to Fig. 5) by rear end side, when the restrictions 9a of trailing wheel guide rail 9 and the gap between the trailing wheel roller 4 are made as c, need make b＞c.
Thus, the relation of a＞b＞c is set up.Because the restrictions 9a of trailing wheel guide rail 9 and the gap c minimum between the trailing wheel roller 4, restrictions 9a is inevitable with contacting of trailing wheel roller 4, therefore is configured to only be provided with on trailing wheel roller 4 friction part 24.
Thus, when the advancing of step 2, the two sides of step 2 do not contact with skirt guard 18.And, because about the rear end side of step 2 do not rely on, so riser 23 does not contact with skirt guard 18 yet.Therefore, can prevent to damage skirt guard 18.
And, as shown in Figure 4 existing structure like that, under the situation that friction part 17 has been installed on the front-wheel roller 3, when friction part 17 abrasion need to change, because when step chains 5 is conveyer chain, can not decompose in fact, therefore need change the operation complexity to whole step chains 5.
To this, in the present invention, owing to can only change trailing wheel roller 4, so operation is simple.Operation when therefore, improving replacing.
In addition, the present invention is not limited to above-mentioned embodiment, in not breaking away from the present invention's spirit scope, can carry out various changes to the foregoing description.
Symbol description
1 truss
2 steps
3 front-wheel rollers
4 trailing wheel rollers
4a inner ring section
4b outer ring section
5 step chains
8 front-wheel guide rails
The restriction section of 8a front-wheel guide rail
9 trailing wheel guide rails
The restrictions of 9a trailing wheel guide rail
24 friction parts
26 bearings
The turning cylinder of CL trailing wheel roller
The VF vertical surface
Claims (6)
1. passenger conveyors is characterized in that possessing:
Pei Zhi a plurality of steps annularly;
Skirt guard is arranged on the both sides of above-mentioned step,
The front-wheel roller is installed in the front of the two sides of above-mentioned each step;
The trailing wheel roller is installed in the rear end side of the two sides of above-mentioned each step;
The step chains of ring-type, be arranged on above-mentioned step both sides, link to each other with above-mentioned each step;
The front-wheel guide rail, be arranged on above-mentioned step both sides, extend along the direct of travel of above-mentioned step, and above-mentioned front-wheel roller is led; And
The trailing wheel guide rail, be arranged on above-mentioned step both sides, extend along the direct of travel of above-mentioned step, and above-mentioned trailing wheel roller is led,
Above-mentioned front-wheel guide rail has the vertically outstanding and restrictions that extend at the direct of travel of above-mentioned step from its roller spigot surface,
Above-mentioned trailing wheel guide rail has the vertically outstanding and restrictions that extend at the direct of travel of above-mentioned step from its roller spigot surface,
Above-mentioned trailing wheel roller has tabular friction part, and this tabular friction part limits above-mentioned step on direct of travel by slipping with the restrictions of above-mentioned trailing wheel guide rail,
In above-mentioned passenger conveyors, satisfy following relation:
a＞b＞c，
Wherein, a represents the gap between above-mentioned step and the above-mentioned skirt guard, and b represents the restrictions of above-mentioned front-wheel guide rail and the gap between the above-mentioned front-wheel roller, and c represents the restrictions of above-mentioned trailing wheel guide rail and the gap between the above-mentioned trailing wheel roller.
2. passenger conveyors according to claim 1 is characterized in that:
Above-mentioned trailing wheel roller has the inner ring portion that is installed in freely to rotate on the above-mentioned step and be arranged on the outside of this inner ring portion and the outer ring portion that rotates on the spigot surface of above-mentioned trailing wheel guide rail, and above-mentioned inner ring portion is formed than the good material of above-mentioned outer ring portion by abrasion performance.
3. passenger conveyors according to claim 2 is characterized in that:
Above-mentioned inner ring portion, outer ring portion and friction part form.
4. passenger conveyors according to claim 1 is characterized in that:
Above-mentioned trailing wheel roller is installed on the above-mentioned step freely to rotate by being arranged on a plurality of bearings in the vertical surface with its turning cylinder quadrature.
5. passenger conveyors according to claim 1 is characterized in that:
Above-mentioned friction part and above-mentioned trailing wheel roller constitute, and are positioned at the position in the inner part, side than above-mentioned step.
6. passenger conveyors according to claim 1 is characterized in that:
Above-mentioned front-wheel guide rail constitutes, and bear from the below along the total length of above-mentioned front-wheel guide rail and support above-mentioned front-wheel roller, and the restrictions of above-mentioned front-wheel guide rail is outstanding upward,
Above-mentioned trailing wheel guide rail constitutes, and bear from the below along the total length of above-mentioned trailing wheel guide rail and support above-mentioned trailing wheel roller, and the restrictions of above-mentioned trailing wheel guide rail is outstanding upward.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006051007A JP2007230673A (en) | 2006-02-27 | 2006-02-27 | Passenger conveyor |
| JP051007/2006 | 2006-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101028904A CN101028904A (en) | 2007-09-05 |
| CN101028904B true CN101028904B (en) | 2011-06-08 |
Family
ID=38551659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100923774A Expired - Fee Related CN101028904B (en) | 2006-02-27 | 2007-02-27 | Passenger elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2007230673A (en) |
| CN (1) | CN101028904B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5265398B2 (en) * | 2009-01-27 | 2013-08-14 | 三菱電機ビルテクノサービス株式会社 | Passenger conveyor equipment |
| JP5695552B2 (en) * | 2011-12-15 | 2015-04-08 | 株式会社日立製作所 | Passenger conveyor |
| CN103998365B (en) * | 2012-01-06 | 2016-06-29 | 三菱电机株式会社 | Passenger conveyor device |
| DE102012013704A1 (en) | 2012-07-10 | 2013-06-20 | Kone Corporation | Safety device for a passenger conveyor system |
| JP5950809B2 (en) * | 2012-12-12 | 2016-07-13 | 株式会社日立製作所 | Passenger conveyor |
| CN103693540A (en) * | 2014-01-10 | 2014-04-02 | 中山广都机电有限公司 | Stair middle subordinate wheel rail of staircase |
| CN103848327B (en) * | 2014-03-17 | 2015-09-30 | 苏州杰富电梯有限公司 | A kind of escalator peculiar to vessel |
| CN106081846A (en) * | 2016-07-14 | 2016-11-09 | 上海爱登堡电梯贵州有限公司 | Band returns the escalator of secondary rail guide rail |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4175652A (en) * | 1975-12-29 | 1979-11-27 | Hitachi, Ltd. | Escalator with step levelers |
| CN1115177A (en) * | 1993-10-06 | 1996-01-17 | O&K自动扶梯有限公司 | Drive system for escalators or moving pavements |
-
2006
- 2006-02-27 JP JP2006051007A patent/JP2007230673A/en active Pending
-
2007
- 2007-02-27 CN CN2007100923774A patent/CN101028904B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4175652A (en) * | 1975-12-29 | 1979-11-27 | Hitachi, Ltd. | Escalator with step levelers |
| CN1115177A (en) * | 1993-10-06 | 1996-01-17 | O&K自动扶梯有限公司 | Drive system for escalators or moving pavements |
| US5785166A (en) * | 1993-10-06 | 1998-07-28 | O&K Rolltreppen Gmbh Of Hattingen | Drive system for escalators or moving sidewalks |
Non-Patent Citations (3)
| Title |
|---|
| JP平10-218540A 1998.08.18 |
| JP平5-330775A 1993.12.14 |
| JP平6-321473A 1994.11.22 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101028904A (en) | 2007-09-05 |
| JP2007230673A (en) | 2007-09-13 |
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Granted publication date: 20110608 Termination date: 20140227 |