WO2018150078A1 - Ensemble de guidage de rouleau d'ascenseur - Google Patents

Ensemble de guidage de rouleau d'ascenseur Download PDF

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Publication number
WO2018150078A1
WO2018150078A1 PCT/FI2017/050101 FI2017050101W WO2018150078A1 WO 2018150078 A1 WO2018150078 A1 WO 2018150078A1 FI 2017050101 W FI2017050101 W FI 2017050101W WO 2018150078 A1 WO2018150078 A1 WO 2018150078A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
roller guide
elevator
guide assembly
assembly according
Prior art date
Application number
PCT/FI2017/050101
Other languages
English (en)
Inventor
Mikko Vesterinen
Matti RÄSÄNEN
Esko Aulanko
Janne Mikkonen
Markku RUUSUVIRTA
Jorma Mustalahti
Veijo Manninen
Original Assignee
Kone Corporation
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 Kone Corporation filed Critical Kone Corporation
Priority to PCT/FI2017/050101 priority Critical patent/WO2018150078A1/fr
Publication of WO2018150078A1 publication Critical patent/WO2018150078A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
    • B66B7/046—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
    • B66B7/048—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes including passive attenuation system for shocks, vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2350/00—Machines or articles related to building

Definitions

  • the present invention relates to an elevator roller guide assembly as defined in the preamble of claim 1.
  • roller guide shoes In roller guide shoes, according to prior art the rollers are suspended with levers and springs to allow a smoother movement of the car in lateral directions. The movement of the rollers is lim ⁇ ited with stopper bolts that short circuit the spring flexi- bility at a certain maximum position so that other car components are not able to hit the guide rails of the elevator.
  • the whole roller guide shoe assembly has a lot of different components.
  • rollers In many cases the rollers cannot be installed to their positions at the factory, so they need to be installed on site. This may cause problems because on site it is ex ⁇ tremely challenging to get all the adjustments right. Often the rollers end up tilting in some direction, which deterio ⁇ rates ride comfort and causes wear to the rollers. In addition of being difficult to install prior art solu ⁇ tions have also other drawbacks. Usually there are many problems with ride comfort caused by flat spots, rumbling noise, etc. Roller guide shoe assemblies are usually also very complicated in their structure and expensive because they have so many components in the assembly. And also, pri ⁇ or art solutions are usually structurally large in size. That may cause problems in relation to the layout of an ele- vator.
  • roller guide shoe assem ⁇ blies are extremely difficult, which easily leads to poor ride comfort and may cause damages to elevator components.
  • a typical roller guide shoe according to prior art is known, for instance, from the US patent No. US5984053. This solu ⁇ tion has all the disadvantages mentioned above.
  • the roller guide assembly includes a plurality of horizontal fixing shafts disposed adjacent to a guide rail, and rollers rotatably supported, respectively, by the horizontal fixing shafts, and rolled on the guide rail.
  • Each of the rollers includes a roller outer circumference portion abutted on the guide rail, a bearing provided on an inner circumference side of the roller outer circumference portion, and an annu ⁇ lar elastic member disposed between the bearing and the horizontal fixing shaft.
  • Each of the rollers is assembled in a state where each of the rollers is pressed and abutted on the guide rail by an appropriate precompression .
  • One objective of the present invention is to eliminate draw ⁇ backs of the prior art technology mentioned above and to achieve an elevator roller guide assembly, which does not have the disadvantages mentioned above.
  • Another objective of the present invention is to achieve an elevator roller guide assembly that is fast and easy to install, does not comprise as much components as prior art roller guide shoes and is not as large in size as prior art roller guide shoes.
  • the elevator roller guide assembly according to the invention is characterized by what is disclosed in the character ⁇ ization part of claim 1.
  • Other embodiments of the invention are characterized by what is disclosed in the other claims.
  • inventive content of the application can also be defined differently than in the claims presented below.
  • the in ⁇ ventive content may also consist of several separate inven- tions, especially if the invention is considered in the light of expressions or implicit sub-tasks or from the point of view of advantages or categories of advantages achieved. In this case, some of the attributes contained in the claims below may be superfluous from the point of view of separate inventive concepts.
  • the different details present ⁇ ed in connection with each embodiment can also be applied in other embodiments.
  • at least some of the subordinate claims can, in at least some situations, be deemed to be inventive in their own right.
  • the present invention provides an elevator roller guide as ⁇ sembly in an elevator that comprises an elevator car installed to run up and down guided by guide rails having guiding surfaces, which roller guide assembly comprises a group of rollers arranged to run on the guiding surfaces of the guide rails.
  • each roller comprises an outer rim and an inner rim.
  • the outer rim of the rollers comprises empty spaces to reduce the stiffness of the outer rim and preferably the stiffness of the roller being increasing in progressive manner with respect to the amount of the radial compression of the roll ⁇ er .
  • roller guide as ⁇ sembly is simple in design and therefore fast and easy to install. Only one fastening hole for each roller is needed, and when the hole is in the correct place, no adjustment is needed.
  • Another advantage of the solution according to the invention is that the roller profile is designed so that the flat spot stays in a contact point with a guide rail. This removes a flat spot problem of the prior art solutions.
  • Yet another advantage of the solution according to the invention is that thanks to the advantageous roller composition that is soft enough, rumbling noise can be decreased.
  • a fur ⁇ ther advantage of the solution according to the invention is that the new roller configuration provides better performance due to a progressive behavior.
  • the new roller guide assembly is inexpensive and easy to manufac- ture . That makes it also possible to use the roller guide assembly instead of sliding guide shoes to get rid of guide rail oil.
  • the solution of the invention is also envi ⁇ ronmentally friendlier.
  • the empty spaces of the outer rim of the roller and their surrounding structure together provide suitable soft cushioning between the guide rail and the ele ⁇ vator car.
  • outer rim material is hard enough, so that it does not wear away too fast.
  • Fig. 1 presents in a simplified and diagrammatic back view an elevator car equipped with roller guide assemblies according to the invention
  • Fig. 2 presents in a simplified and diagrammatic side view a roller of the roller guide assembly according to the invention
  • Fig. 3 presents in a simplified and diagrammatic oblique top view the roller according to Fig. 2,
  • Fig. 4 presents in a simplified and diagrammatic side view a roller of the roller guide assembly according to a second embodiment of the invention
  • Fig. 5 presents in a simplified and diagrammatic oblique top view the roller of the roller guide assembly according to a third embodiment of the invention
  • Fig. 6 presents in a simplified and diagrammatic side view a roller according to figure 2 equipped with a bearing
  • Fig. 7 presents in a simplified and diagrammatic top view a simple roller guide unit of the roller guide as ⁇ sembly according to the invention
  • Fig. 8 presents in a simplified and diagrammatic side view a roller guide unit of the roller guide assembly according to the invention installed on the roof of the elevator car,
  • Fig. 9 presents in a simplified and diagrammatic front view the roller guide unit according to Fig. 8
  • Fig. 10 presents in a simplified and diagrammatic front view a simple roller guide unit according to the invention installed on a sidewall of the elevator car
  • Fig. 11 presents in a simplified and diagrammatic front view a roller guide unit according to an advanta ⁇ geous embodiment of the invention installed on a sidewall of the elevator car, and
  • Fig. 12 presents two load deflection curves of roller guide arrangements in an elevator car.
  • Figure 1 presents in a simplified and diagrammatic back view an elevator car 1 installed to run up and down in an elevator shaft along the guide rails 2, which have preferably three guiding surfaces; an end guiding surface 2a facing to the elevator car 1 and two side guiding surfaces 2b on each side of the end guiding surface 2a.
  • the elevator car 1 is equipped with roller guide assemblies 3 according to the invention.
  • roller guide assembly 3 comprises advantageously three separate roller guide units 4 that are preferably installed separately from each other.
  • the first roller guide unit 4 of each roller guide assembly 3 is placed so that the roller 5 of the roller guide unit 4 is running on the end guiding surface 2a of the guide rail 2.
  • the first roller guide unit 4 is fastened di ⁇ rectly to a fastening hole or holes on the roof la of the elevator car 1.
  • the second and third roller guide unit 4 of each roller guide assembly 3 is placed so that the roller 5 of each roller guide unit 4 is running on its own side guiding surface 2b of the guide rail 2.
  • the second and third roller guide unit 4 of each roller guide assembly 3 is fastened directly to a fastening hole or holes on the side wall lb of the elevator car 1.
  • roller guide units 4 of each roller guide assembly 3 are fixedly installed in relation to the elevator car 1 so that their shafts do not move in relation to the elevator car 1.
  • a sling can be used to support the elevator car 1.
  • the fastening hole or holes for the roller guide units 4 are preferably in the sling.
  • FIG. 2-5 present in simplified and diagrammatic views different kinds of rollers 5 usable in the invention.
  • Fig ⁇ ures 2 and 3 present the same kind of a roller 5, which com ⁇ prises an outer rim portion 5a and an inner rim portion 6 with a hub and a group of radial spokes or corresponding support elements.
  • the outer rim portion 5a is made of soft flexible material, such as soft polyurethane comprising emp ⁇ ty spaces 7, such as holes, pockets or cavities that com ⁇ prise only air and are arranged to reduce the stiffness of the outer rim 5a and by this way to ease the compression of the outer rim portion 5a towards the inner rim portion 6 when the roller 5 is pressed against the guiding surface 2a, 2b of the guide rail 2.
  • soft flexible material such as soft polyurethane comprising emp ⁇ ty spaces 7, such as holes, pockets or cavities that com ⁇ prise only air and are arranged to reduce the stiffness of the outer rim 5a and by this way to ease the compression of the outer rim portion 5a towards the inner rim portion 6 when the roller 5 is pressed against the guiding surface 2a, 2b of the guide rail 2.
  • Figure 4 presents in a simplified and diagrammatic side view a roller 5 of the roller guide assembly 3 according to a second embodiment of the invention.
  • the outer rim portion 5a can be similar material with similar empty spaces 7 as in the solution of figures 2 and 3 but now the inner rim portion 6 is different.
  • the inner rim portion 6 comprises only a hub that can be similar to the hub of the rollers 5 shown in figures 2 and 3 but now the inner rim portion 6 has no spokes or corresponding support elements. Instead the thickness of the outer rim portion 5a is now bigger in the radial direction, and the number of empty spaces 7 can be bigger.
  • the empty spaces 7 can be either closed or open holes, pock ⁇ ets or cavities or in a mixed way situated both closed and open holes, pockets or cavities.
  • Closed empty spaces 7 are totally inside the outer rim portion 5a and partially and/or totally open empty spaces 7 can extend or be on the both side portions of the outer rim portion 5a. Preferably all or at least some of the open empty spaces 7 are open to one side of the roller 5 and/or to another side of the roller 5.
  • Figure 5 presents in a simplified and diagrammatic oblique top view a half of a roller 5 of the roller guide assembly 3 according to a third embodiment of the invention.
  • the outer rim portion 5a can be similar material with the outer rim portions 5a of rollers 5 of figures 2-4 but now the empty spaces 8 of the outer rim portion 5a are different.
  • the empty space 8 can be a circular cavity on both sides of the outer rim portion 5a, each circular cavity being coaxial with the outer rim portion 5a.
  • the inner rim portion 6 can be such as presented in figures 2-4 or it may also be different.
  • the number of empty spaces 8 on each side of the roller 5 can also be bigger than one.
  • the number of empty spaces 8 on each side can be two, three or even bigger.
  • the inner rim portion 6 is preferably harder ma ⁇ terial than the outer rim portion 5a and is arranged to en ⁇ dure without transformation the pressing force used in this connection.
  • the pressing force is mainly a horizontal force and is caused by the contact between the roller 5 and the guiding surface 2a, 2b of the guide rail 2.
  • the flexible outer rim 5a is arranged to create a flat spot onto its outer periphery in the point of contact between the roller 5 and the guiding surface 2a, 2b of the guide rail 2. And further, said flexible outer rim 5a is arranged to re- move the created flat spot and restore the circular form of the outer rim 5a before the same point of the roller 5 is in contact with the guiding surface 2a, 2b next time. That re ⁇ moves the flat spot problem of the prior art solutions.
  • the amount of deflection or the radial compression of the roller 5 is arranged with a number, size and form of the empty spaces 7 and with the thickness of the outer rim por ⁇ tion 5a in the radial direction.
  • each roller 5 is arranged to receive this horizontal movement so that the shaft of the rollers 5 moves neither horizontally nor vertically in rela ⁇ tion to the elevator car 1.
  • This displacement is the change of distance between the shaft of the roller 5 and the sur ⁇ face of the roller 5 which surface is in contact with the guiding surface of the guide rail 2.
  • the displacement is caused by the change of the supporting force of the guide rail 2 affecting towards to the outer surface of the roller 5.
  • the shaft of the roller 5 is internally eccentric with the outer periphery of the roller 5.
  • the hub of the inner rim portion 6 is equipped with a bearing and the roller 5 is installed on its shaft through a bearing.
  • the new type of a roller 5 of the roller guide assembly 3 makes it possible to place the roller guide units 4 sepa- rately.
  • the relative horizontal movement between the car 1 and the guide rails 2 causes horizontal forces or spring forces to the roller 5.
  • the structure of the outer rim por ⁇ tion 5a of the roller 5 is arranged to receive the horizon ⁇ tal movements between the car 1 and the guide rails 2.
  • the needed damping is provided with the structure of said outer rim portion 5a of the roller 5. This makes it possible to fasten the roller guide units 4 directly to the car 1 or sling without springs and other adjustment components.
  • the new guide roller assembly 3 according to the invention does not have a frame anymore; all the functionality of the frame is integrated into the rollers 5 of three separate roller guide units 4.
  • roller profiles and materials are designed to have a progressive behavior, providing a soft behavior and a good vibration isolation at normal operating speeds and loads with smaller displacements of the elevator car 1, and a stronger increase of supporting force at higher displacements of the elevator car 1 to act like a stopper, which limits the horizontal movement of the elevator car 1.
  • This kind of a behavior can be achieved with a specially de ⁇ signed type of roller profiles explained above.
  • Figure 6 presents in a simplified and diagrammatic side view a roller 5 according to figure 2 equipped with a bearing 6a, which is preferably a groove ball bearing.
  • the bearing 6a is installed inside the hub of the roller 5.
  • FIG. 7 presents in a simplified and diagrammatic top view a simple roller guide unit 4 of the roller guide assembly 3 according to the invention.
  • the simplest version of the roller guide unit 4 comprises only a roller 5 with a bearing 6a and a fastening element 10 with threads and a fastening nut 10b, which fastening element 10 is installed on the bearing 6a and fastened into the fastening hole in the ele ⁇ vator car 1.
  • the roller guide unit 4 comprises a shaft portion 6b that has a center hole for a fastening element 10 that comprises at least a screw 10a and the fastening nut 10b.
  • the shaft portion 6b can also be integrated with the screw 10a so that the part of the fastening element 10 forms the shaft portion 6b.
  • roller 5 the bearing 6a, the shaft por ⁇ tion 6b and the fastening element 10 of the roller guide unit 4 are all coaxial with each other.
  • the whole assembly of one roller guide unit 4 according to the invention comprises less than 10 parts resulting in less than 30 parts in total in the whole guide roller assembly 3 comprising three roller guide units 4.
  • Figures 8-11 present in simplified and diagrammatic views different kinds of installations of the roller guide unit 4 according to the invention.
  • Figures 8 and 9 present the roller guide unit 4 installed on the roof la of the elevator car 1.
  • figure 10 presents the roller guide unit 4 installed on the sidewall lb of the elevator car 1
  • figure 11 presents the roller guide unit 4 of another embodiment of the invention installed on the on the sidewall lb of the elevator car 1.
  • the roller guide unit 4 is fastened on the roof la of the elevator car 1 through a fastening bracket 4a.
  • Two fastening holes are made precisely in a correct location into the car roof la and the fastening bracket 4a is secured to the fastening holes with fastening elements 9, such as screws.
  • the fastening screw 10a of the roller guide unit 4 is inserted through a hole in the fastening bracket 4a and the roller guide unit 4 is fastened to the fastening bracket 4a with the fastening nut 10b.
  • the fastening hole 12 for the roller guide unit 4 has been made precisely in the correct location onto the sidewall lb of the elevator car 1.
  • the sidewall lb of the elevator car 1 can be appropri ⁇ ately enforced around the fastening hole 12. Because the fastening hole 12 is precisely in the correct location the roller guide unit 4 places itself automatically into a cor ⁇ rect location where it presses the side guiding surface 2b of the guide rail 2 with a correct predetermined horizontal force .
  • Figure 11 presents the roller guide unit 4 according to an advantageous embodiment of the invention installed onto the sidewall lb of the elevator car 1.
  • the roller guide unit 4 is fastened to a separate support plate 4b that has a fastening hole for the fastening screw 10a of the roller guide unit 4.
  • the support plate 4b has been fas ⁇ tened onto the sidewall lb of the elevator car 1 with fas ⁇ tening elements 11, such as screws that have fastening holes in the sidewall lb of the elevator car 1 made precisely in the correct locations. Because the fastening holes for the fastening elements 11 are precisely in the correct locations the roller guide unit 4 places itself automatically into a correct location where it presses the side guiding surface 2b of the guide rail 2 with a correct predetermined horizon- tal force.
  • Figure 12 presents in general two load deflection curves of roller guide arrangements of an elevator car.
  • the upper curve with a dotted line represents the behavior of a prior art roller guide shoe and the lower curve with a continuous line represents the behavior of the roller arrangement ac ⁇ cording to the invention.
  • the roller here is named as a new roller.
  • Y-axis represents force or stress and
  • the desired stiffness behavior or form of the curve of the new roller can be modified to a desired shape with different materials of the roller, different amount and form of empty spaces 8 and different largeness of preload.
  • the hardness of the material of the outer surface of the roller 5 has in in ⁇ fluence on the wear of the outer surface of the roller 5.
  • the hardness of the material of the outer surface of the roller 5 is suitably between 60 shoreA and 100 shoreA, advantageously between 65 shoreA and 90 shoreA and preferably between 70 shoreA and 80 shoreA. It is obvious to the person skilled in the art that the in ⁇ vention is not restricted to the examples described above but that it may be varied within the scope of the claims presented below. Thus, for instance the structure of the rollers and roller guide units can be different from what is presented above.
  • An example of variations is shape of the empty spaces in the outer rim of a roller.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

L'invention concerne un ensemble de guidage de rouleau d'ascenseur dans un ascenseur comprenant une cabine d'ascenseur (1) montée de manière à se déplacer vers le haut et vers le bas en étant guidée par des rails de guidage (2) présentant des surfaces de guidage (2a, 2b), lequel ensemble de guidage de rouleau comprend un groupe de rouleaux (5) agencés de manière à se déplacer sur les surfaces de guidage des rails de guidage (2), et chaque rouleau (5) comprend un bord externe (5a) et un bord interne (6). Le bord externe (5a) des rouleaux (5) comprend des espaces vides (7, 8) de manière à réduire la rigidité du bord externe (5a) et de préférence la rigidité du rouleau (5) augmentant de manière progressive par rapport à la quantité de compression radiale du rouleau (5).
PCT/FI2017/050101 2017-02-16 2017-02-16 Ensemble de guidage de rouleau d'ascenseur WO2018150078A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/FI2017/050101 WO2018150078A1 (fr) 2017-02-16 2017-02-16 Ensemble de guidage de rouleau d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2017/050101 WO2018150078A1 (fr) 2017-02-16 2017-02-16 Ensemble de guidage de rouleau d'ascenseur

Publications (1)

Publication Number Publication Date
WO2018150078A1 true WO2018150078A1 (fr) 2018-08-23

Family

ID=63169164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2017/050101 WO2018150078A1 (fr) 2017-02-16 2017-02-16 Ensemble de guidage de rouleau d'ascenseur

Country Status (1)

Country Link
WO (1) WO2018150078A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6345698B1 (en) * 2000-02-22 2002-02-12 Otis Elevator Company Simplified roller guide
ES2184613A1 (es) * 2001-05-25 2003-04-01 De Vera Savera Sa Rueda para guia de ascensores.
JP2003301833A (ja) * 2002-04-12 2003-10-24 Yunimatekku Kk 回転ローラー
JP2009203030A (ja) * 2008-02-28 2009-09-10 Mitsubishi Electric Corp 昇降機機器用ローラ
WO2012131155A1 (fr) * 2011-03-30 2012-10-04 Kone Corporation Ascenseur équipé d'un agencement de sabot de guidage
WO2012166097A1 (fr) * 2011-05-27 2012-12-06 Otis Elevator Company Ensemble de rouleau à rigidité non linéaire
KR20130053547A (ko) * 2011-11-15 2013-05-24 오티스 엘리베이터 컴파니 엘리베이터용 이중사출롤러

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6345698B1 (en) * 2000-02-22 2002-02-12 Otis Elevator Company Simplified roller guide
ES2184613A1 (es) * 2001-05-25 2003-04-01 De Vera Savera Sa Rueda para guia de ascensores.
JP2003301833A (ja) * 2002-04-12 2003-10-24 Yunimatekku Kk 回転ローラー
JP2009203030A (ja) * 2008-02-28 2009-09-10 Mitsubishi Electric Corp 昇降機機器用ローラ
WO2012131155A1 (fr) * 2011-03-30 2012-10-04 Kone Corporation Ascenseur équipé d'un agencement de sabot de guidage
WO2012166097A1 (fr) * 2011-05-27 2012-12-06 Otis Elevator Company Ensemble de rouleau à rigidité non linéaire
KR20130053547A (ko) * 2011-11-15 2013-05-24 오티스 엘리베이터 컴파니 엘리베이터용 이중사출롤러

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