WO2013175003A1 - Dämpfungseinheit für einen aufzug - Google Patents
Dämpfungseinheit für einen aufzug Download PDFInfo
- Publication number
- WO2013175003A1 WO2013175003A1 PCT/EP2013/060793 EP2013060793W WO2013175003A1 WO 2013175003 A1 WO2013175003 A1 WO 2013175003A1 EP 2013060793 W EP2013060793 W EP 2013060793W WO 2013175003 A1 WO2013175003 A1 WO 2013175003A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- damping unit
- brake
- brake shoe
- brake shoes
- unit according
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0293—Suspension locking or inhibiting means to avoid movement when car is stopped at a floor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/34—Safe lift clips; Keps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/365—Means for stopping the cars, cages, or skips at predetermined levels mechanical
Definitions
- the invention relates to a damping unit for an elevator.
- Lifts contain cabins which can be moved by means of suspension means, for example in the form of carrying ropes or carrying straps, by means of a drive unit in an elevator shaft.
- suspension means for example in the form of carrying ropes or carrying straps
- drive unit in an elevator shaft.
- guide rails are fixed, which specify a linear guide for the elevator car. Persons or goods that enter or leave the elevator car during a car standstill, cause due to the elasticity of the suspension undesirable vertical vibrations of the cabin. Such vertical vibrations occur in particular at
- a device for preventing vertical vibrations of the elevator car during standstill phases has become known.
- the device has a brake caliper, which can be pressed against the guide rail via a toggle mechanism. Brake shoes are arranged at the front ends of the levers of the brake calliper. This device causes a frictional caused more or less rigid adherence of the car to the guide rails.
- retaining devices are sophisticated in terms of the control technology. In particular, it is difficult or expensive to operate the elevator in such a way that after the cabin stoppage the car can start smoothly.
- Damping unit has a about half the cabin depth extending lever arm, at the free end of a pivotally mounted brake shoes is arranged.
- the damping unit is mechanically coupled to a door opening unit of the cabin; this damping unit which can be activated via the door drive requires a complicated decorated lever and gear mechanism, which is why this solution is expensive and prone to failure.
- the device can not be retrofitted into existing existing older elevator systems.
- a further disadvantage then is that the damping behavior of the cabin does not meet higher demands with regard to ride comfort and operational reliability.
- Lever arms are designed in two parts, wherein the respective lever arm parts via a spring-supported damping mechanism comprising a respective helical compression spring against each other are displaced. Unwanted vertical vibrations during a cabin stoppage are difficult with this arrangement and can only be eliminated with a high level of control effort. In addition to the complicated structure, the arrangement is also expensive and heavy. Another disadvantage is that the arrangement requires a lot of space.
- the damping unit should also be suitable for installation in existing systems. Such a retrofit of the elevator installation should be possible simply and with comparatively low costs.
- the damping unit which is preferably equipped with two brake shoes, contains brake shoe holders which are in operative connection with an actuator for moving the brake shoes.
- the brake shoes are in a rest position during a cab ride without contact along a guide rail mobile. After activation of the actuator, which is geared to the brake shoe holders, the brake shoes held by the brake shoe holders are pressed against the guide rail during the car stoppage in an active position.
- the damping unit furthermore has a housing or another carrier structure (for example in FIG.
- Gear transmission thus allows a precise simultaneous movement of the two brake shoe holder.
- the gear transmission may be formed, for example, as a spur gear and have a subsequent to a drive shaft of the motor and rotatably connected thereto central drive gear. Further, the gear transmission may have two eccentric gears, wherein in each case an eccentric gear is associated with a respective brake shoes. Depending on the rotational position of the eccentric gears which can be driven centrally via the drive gear wheel, the rest position or active position for the brake shoes can be specified.
- the eccentric gears may have eccentrically arranged trunnions (i.e., each eccentric gear each has a journal) which respectively engage in bearing seats of the brake shoes for moving the brake shoe holders.
- the journals indicate the rest position or the active position.
- the brake shoes can each be resiliently supported on the respective or associated brake shoe holder via at least one spring element, whereby an optimal compression of the brake shoes against the guide rail can be set for the active position for the reduction of the vertical vibrations of the cabin.
- a precise and well-defined horizontal normal force can be applied and thereby a defined vertical damping force can be achieved.
- Another advantage of the resilient mounting of the brake shoe on the brake shoe holder is that a robust, durable damping unit created becomes. The wear of the brake shoes has no or little negative effect on the functionality of the damping unit.
- the embodiment described here with the brake shoes supported resiliently on brake shoe holders via spring elements could also be advantageous for damping units of conventional design, ie for damping units of the type mentioned at the outset. The previously described gear transmission would therefore not necessarily be used in this case.
- spring elements are in particular metallic spring means.
- the spring element may be a helical compression spring.
- the damping unit can have one, two or even a multiplicity of helical compression springs per brake shoe.
- the brake shoes are arranged limitedly displaceable on the brake shoe holders.
- To limit the displacement of the brake shoe holder may be equipped with appropriate stops.
- the brake shoes can be attached to support elements or rest on these.
- the support elements may be made of a metallic material, for example made of steel.
- the spring elements can abut the support elements on one side.
- the spring elements can abut on one side on the brake shoe holders and on the other side on the support elements.
- the actuator comprises a preferably electrically driven motor.
- This motor can be configured, for example, as a stepping motor with which the desired pressing force for reducing the vertical vibrations of the cabin can be adjusted with high precision.
- the damping unit for moving both brake shoes has a common motor with which the brake shoe holders are preferably simultaneously, but in the opposite direction movable.
- the damping unit may have a carrier structure formed, for example, by a housing, on which the brake shoe holders are arranged and preferably mounted displaceably. In the latter case, the direction of movement would be transverse to the running or direction of the cabin.
- the damping unit may comprise an eccentric arrangement, via which the brake shoes are movable back and forth. Thanks to the eccentric arrangement can be adjusted in a particularly simple and efficient way, the rest position and active position of the brake shoe holder.
- the eccentric mechanism allows precise and at the same time simple loading of the braking surface with a pressing force with high power transmission to reduce the vertical vibrations of the elevator car in standstill phases, whereby small actuators (for example electric motor) can be used.
- the damping unit may further comprise a fixed to the support structure spring means which is attachable to the cabin and which serves the resilient mounting of the support structure, there are a number of advantages. With the spring device can be unwanted lateral deflection of the cabin transverse to the direction of travel in a simple manner and reduce. Next affect manufacturing and assembly-related tolerances between the guide rail and brake shoes not negative.
- the spring device could for example contain one or more conical helical compression springs.
- the spring device is designed as a bending spring made of metal.
- the spiral spring can be designed such that it can only be deflected in two dimensions. Bending springs also have the advantage that they are easily connectable both to the support structure and to the cab. Bend springs can also be produced easily and inexpensively. Finally, bending springs can be optimally adapted to the desired degrees of freedom.
- the spring device is formed by an approximately egg-shaped in cross-section box-like profile.
- the desired two-dimensionally resilient mounting of the support structure can be achieved in an advantageous manner.
- the C-shaped profile can be arranged or positioned in the damping unit such that the profile longitudinal direction of the C-profile parallel to the
- the spring device may have a to the support structure or resting mounting portion for securing the support structure and two opposing, preferably approximately perpendicular to the attachment portion side walls. Next can connect to the side walls in each case parallel to the attachment portion extending end portions through which the damping unit can be attached to the cabin.
- the end sections can have fastening means for fastening the spring unit to the cabin, for example in the form of holes for receiving screws.
- the invention may further be directed to an elevator with a cabin and with at least one damping unit in the manner of the previously described damping unit.
- the spring unit is arranged between the carrier structure and the cabin and, as it were, forms a resilient interface of the damping unit to the cabin.
- FIG. 1 shows a simplified representation of a lift in a side view
- FIG. 2 shows an illustration of a damping unit according to the invention for the elevator
- FIG. 3 shows a cross section through the damping unit (section line A-A in FIG. 2)
- FIG. 4 shows a gear transmission for the damping unit according to FIG. 2,
- FIG. 5 is an exploded perspective view of the damping unit
- Figure 6 is an enlarged view of an assembly with a brake shoe holder and a brake shoe for the damping unit according to Figure 2, and
- FIG. 7 is a perspective exploded view of the assembly of FIG. 6.
- Figure 1 shows an elevator with a vertically up and down movable cabin 2 for the transport of persons or goods.
- the elevator system comprises two in the vertical direction z extending guide rails 3 on.
- Each guide rail 3 has three guide surfaces extending in the direction of travel of the car.
- guide shoes designed in an exemplary manner as roller guide shoes are attached in FIG.
- the damping unit designated 1 unwanted vertical vibrations of the cabin can be reduced during a standstill. Such vertical vibrations occur when people enter or leave the cabin 2.
- the load change causes the
- Cabin 2 starts to swing. This phenomenon is particularly pronounced in sling-based elevators with high shaft heights.
- z the direction is indicated, in which the guide rail extends, the arrow z also indicates the direction of travel of the car 2 at.
- the present elevator installation has damping units 1 arranged on both sides of the cabin 2.
- the two damping units 1 can be controlled via a (not shown) control device.
- the control device sends a control command to the damping units as soon as the car stops, for example, or when the car door opens. The activation is usually maintained until the doors are closed again and thus no significant load changes are possible. During activation, the controller may continue to send control commands to the damping units.
- the damping units 1 are attached by way of example to the top of the car 2, wherein they are placed separately from the upper guide shoes 14.
- the guide shoes and damping units can also be combined or arranged with each other in other ways.
- the at least one damping unit could also be mounted at the bottom of the cabin.
- the damping Fung unit be attached to a console that includes the guide shoe 15 in whole or in part.
- the aforementioned console is designed as designated 6 and explained in more detail below spring means.
- the exemplified as a sliding guide shoe and shown with dotted lines guide shoe 15 is evidently enclosed by the "C" forming device 6.
- FIG. 2 shows a damping unit 1 in a lateral front view.
- the damping unit 1 contains two opposite brake shoes 7, each brake shoe each facing one of the plane-parallel guide surfaces of the (not shown here) guide rail.
- Each brake shoe 7 is held by a designated 8 brake shoe holder.
- the brake shoe holders 8 are guided laterally on binding elements 16 and can be moved towards or away from the guide rail. Arrows s indicate the respective directions of movement.
- the individual guide elements 16 are fastened via screw connections 36 to a housing 20.
- the brake shoes 7 are mounted together with support elements 9 resiliently on the brake shoe holders 8.
- the brake shoes 7 give in contacting the respective guide surfaces of the guide rail and move relative to the brake shoe holder 8 in the b-direction back. Further relevant details can be taken from FIGS. 6 and 7.
- a box-like profile of C-shaped cross-section is arranged ( Figure 2) .
- This C-profile forms a spring device 6, thanks to which the housing 20 with the brake shoes 7 and brake shoe holders 8 mounted thereon is mounted resiliently on the cabin indicated by 2.
- the spring device 6 formed from a metal sheet by bending processes has a fastening section 21, side walls 22 adjoining at right angles thereto and perpendicular to the side walls. de end sections 23.
- the C-profile for the spring device 6 is preferably produced from a blank made of sheet steel, a spring steel being used with particular preference, the spring device 6 is thus designed as a metallic spiral spring Storage is indicated by a double arrow v
- the special design of the spring means 6 results in a parallelogram configuration, which allows an approximately linear parallel displacement of the housing 20 to the underside of the car 2 in the v-direction and transversely in the horizontal direction to the direction z.
- the end portions 23 of the spring device 6 lie flat against a part of the cabin 2 and are fixedly connected thereto via a screw connection 37.
- the mentioned cabin part can be formed for example by a cabin floor, a supporting frame of the cabin or by another part associated with the cabin. From the sectional view according to FIG.
- the guide rail 3 is shown.
- the brake shoes 7 can travel without contact along the guide rail 3 during the car journey.
- the brake shoe holder 8 are pushed together with the brake shoe 7 arranged thereon against the guide rail 3.
- the pressed against the respective guide surfaces of the guide rails 3 brake shoes 7 cause a limited frictional force, thereby reducing the vertical vibration of the cabin caused by load changes.
- the activation can be triggered, for example, by the door opening or possibly already before (eg as soon as the car is stationary).
- a designated 4 electric motor is used in the present case a designated 4 electric motor.
- the electric motor 4 is geared to the brake shoe holders 8.
- the geared connection comprises a toothed gearing 10 and an eccentric arrangement for converting the rotational movement into the linear movement in the s direction.
- the gear transmission 10 in this case has a central, with the drive axis of the electric motor 4 connected to the drive gear 11 which drives the 12 and 12 'designated gears.
- the toothed wheel transmission 10 is designed as a spur gear transmission.
- the respective eccentric gears 12, 12' are rotationally fixed with axle parts 18 connected to the front side of the bearing pin 13 are formed. Details of the arrangement and operation of the gear transmission 10 of the damping unit is shown in FIG 4.
- the respective eccentric gears 12, 12 ' are positively connected via a shaft-hub connection with the rotatable about the axis of rotation R axis part 18.
- the drivers eg feather keys
- the bearing journals 13 and 13 ' are accommodated eccentrically rotatably mounted in a bearing opening of the brake shoe holder and cooperate with the respective bearing opening such that upon rotation of the bearing pins 13, 13', the brake shoe holder and thus also the brake shoes in the horizontal direction and are movable. From Figure 4 is approximately clearly seen that the geometric axis of the
- Bearing pin 13 does not coincide with the axis of rotation R of the eccentric gear 12 and thus thus arranged eccentrically.
- the motor is activated.
- the bearing journals 13, 13 'connected to the motor via the gear transmission then experience 180 ° turns about the R axes, whereby the brake shoes are displaced against the corresponding guide surfaces of the guide rail and pressed against them.
- the brake shoes 7 can take two bistable layers (active position, rest position). Because the damping unit is not intrinsically safety-relevant, it can be closed or open in a current-free state. The fact that the brake shoes press in the active position with a small or limited force against the guide rails, however, in special situations (such as emergency) moving the car is possible, so that an evacuation of people from the cabin is still guaranteed.
- Figure 5 the individual components of the damping unit can be seen. One each
- Brake shoes 7 and a brake shoe holder 8 are part of a module, the side of rail-like guide members 16 transversely to the direction or profile longitudinal direction of the guide rails are movable back and forth.
- a separate assembly can be seen in Figure 5 bottom right, the brake shoes and brake shoe holder are designated 7 'and 8.
- the support structure is carried out substantially in three parts and consists of a lower housing part 26, a housing upper part 25 and a cross-section or in a plan view U-shaped housing part 27.
- the guide members 16 ' are by means of Bolts 36.2 and nuts 36.1 attached to the housing part 27.
- the gear transmission 10 can be formed on a molded from a sheet metal Pre-assemble rear wall 24, which is installed in the remaining housing during final assembly.
- the spring device 6 designed as a spiral spring in C-shape has end sections 23 directed toward one another, which have holes 30 for screw connections for fastening the spring device 6 to the cabin (not shown here). Using screws 33, the spring device 6 is screwed in the region of the upper side 25 with the housing of the damping unit and fixed so.
- Figures 6 and 7 show an assembly (or brake shoe unit) with brake shoe holder 8 and brake shoe 7.
- the brake shoe can be made of a metallic material.
- the brake shoe can also consist of a plastic material or a material mixture.
- Advantageous braking surfaces for the desired reduction of the vertical vibrations of the cabin arise, for example, when the known at least in the automotive industry under the names "semi-metallic", “Organic” or “low-metallic” brake pads for the brake shoes.
- the brake shoe 7 rests on a comparatively rigid support element 9 made of steel.
- the supported on the support member 9 brake shoes 7 is resiliently supported by two coil compression springs 5 on the brake shoe holder 8.
- the arrow w indicates the direction of movement in which the brake shoes 7 are moved back when the guide rail is acted on.
- the brake shoe 7 is arranged limitedly displaceable on the brake shoe holder 8 together with the associated support element by means of screws 31 and nuts 32. Depending on requirements, the inner and front nuts 32 can be tightened so far that the brake shoe 7 is biased.
- Nuts serve as counter nuts.
- a cylindrical guide pin 28 is arranged on the brake shoe holder and a guide receptacle 29 complementary to the guide pin is arranged in the support element 9.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2874369A CA2874369A1 (en) | 2012-05-24 | 2013-05-24 | Damping unit for a lift |
BR112014029119A BR112014029119A2 (pt) | 2012-05-24 | 2013-05-24 | unidade de amortecimento para um elevador |
US14/402,713 US9714157B2 (en) | 2012-05-24 | 2013-05-24 | Damping unit for an elevator |
EP13726483.4A EP2855328B1 (de) | 2012-05-24 | 2013-05-24 | Dämpfungseinheit für einen aufzug |
CN201380027036.2A CN104334487B (zh) | 2012-05-24 | 2013-05-24 | 用于电梯的缓冲单元 |
HK15106829.7A HK1206320A1 (en) | 2012-05-24 | 2015-07-17 | Damping unit for a lift |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12169296.6 | 2012-05-24 | ||
EP12169296 | 2012-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013175003A1 true WO2013175003A1 (de) | 2013-11-28 |
Family
ID=48570104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/060793 WO2013175003A1 (de) | 2012-05-24 | 2013-05-24 | Dämpfungseinheit für einen aufzug |
Country Status (7)
Country | Link |
---|---|
US (1) | US9714157B2 (de) |
EP (1) | EP2855328B1 (de) |
CN (1) | CN104334487B (de) |
BR (1) | BR112014029119A2 (de) |
CA (1) | CA2874369A1 (de) |
HK (1) | HK1206320A1 (de) |
WO (1) | WO2013175003A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113716481A (zh) * | 2021-07-14 | 2021-11-30 | 莱芜职业技术学院 | 一种新型轨道安全刹车装置 |
EP4197953A1 (de) * | 2021-12-17 | 2023-06-21 | KONE Corporation | Aufzugsfeststellbremse, verfahren zum betrieb einer aufzugsfeststellbremse, und steuervorrichtung für eine aufzugsfeststellbremse |
CN114852818B (zh) * | 2022-04-15 | 2023-08-25 | 南通江中光电有限公司 | 一种具有防坠功能的电梯导靴 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0648703A1 (de) * | 1993-10-18 | 1995-04-19 | Inventio Ag | Bremssicherheitseinrichtung für eine Aufzugskabine |
WO1998040302A1 (en) * | 1997-03-13 | 1998-09-17 | Otis Elevator Company | Quasi-elliptical cam bidirectional progressive safety |
EP1213247A1 (de) * | 2000-12-07 | 2002-06-12 | Inventio Ag | Vorrichtung und Verfahren zum Entsperren einer Fangvorrichtung |
EP1424302A1 (de) | 2001-07-16 | 2004-06-02 | Mitsubishi Denki Kabushiki Kaisha | Aufzugseinrichtung |
EP1067084B1 (de) | 1999-06-25 | 2004-12-08 | Inventio Ag | Vorrichtung und Verfahren zur Verhinderung von Vertikalverschiebungen und Vertikalschwingungen an Lastaufnahmemitteln von Vertikalförderanlagen |
WO2011021064A1 (en) | 2009-08-19 | 2011-02-24 | Otis Elevator Company | Elevator apparatus |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US988759A (en) * | 1910-11-23 | 1911-04-04 | Peter A Dupcza | Safety elevator device. |
US1839235A (en) * | 1928-12-12 | 1932-01-05 | See Elevator Company Inc Ab | Safety device for elevators |
US1819502A (en) * | 1929-02-06 | 1931-08-18 | Westinghouse Elec Elevator Co | Safety device for elevators |
US5209325A (en) * | 1991-04-12 | 1993-05-11 | Eaton-Kenway, Inc. | Braking apparatus and method for storage and retrieval vehicles |
JP3390578B2 (ja) | 1995-07-26 | 2003-03-24 | 三菱電機株式会社 | エレベータ調速機 |
EP0899231B1 (de) | 1997-08-21 | 2002-10-23 | Aufzugstechnologie Schlosser GmbH | Bremsfangvorrichtung |
FI111241B (fi) * | 1999-09-23 | 2003-06-30 | Kone Corp | Menetelmä vetopyörähissin jarruttamiseksi, vetopyörähissi ja varavirtalähteen käyttö |
JP2002179373A (ja) * | 2000-12-14 | 2002-06-26 | Mitsubishi Electric Corp | エレベーター装置 |
EP1283189B1 (de) | 2001-08-07 | 2004-10-27 | Cobianchi Liftteile Ag | Bremsfangvorrichtung, insbesondere für Aufzugskabinen |
FR2852588B1 (fr) * | 2003-03-20 | 2006-04-14 | Thyssenkrupp Elevator Mfg F | Parachute-guide pour ascenseur, ainsi que l'ascenseur ainsi equipe |
AU2009238630B2 (en) * | 2008-04-21 | 2013-09-05 | Hollister-Whitney Elevator Corp | Elevator car brake with shoes actuated by springs coupled to gear drive |
CN101759076B (zh) | 2008-12-25 | 2012-06-27 | 上海三菱电梯有限公司 | 电梯缓冲器 |
-
2013
- 2013-05-24 BR BR112014029119A patent/BR112014029119A2/pt not_active IP Right Cessation
- 2013-05-24 US US14/402,713 patent/US9714157B2/en not_active Expired - Fee Related
- 2013-05-24 EP EP13726483.4A patent/EP2855328B1/de not_active Not-in-force
- 2013-05-24 WO PCT/EP2013/060793 patent/WO2013175003A1/de active Application Filing
- 2013-05-24 CA CA2874369A patent/CA2874369A1/en not_active Abandoned
- 2013-05-24 CN CN201380027036.2A patent/CN104334487B/zh not_active Expired - Fee Related
-
2015
- 2015-07-17 HK HK15106829.7A patent/HK1206320A1/xx unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0648703A1 (de) * | 1993-10-18 | 1995-04-19 | Inventio Ag | Bremssicherheitseinrichtung für eine Aufzugskabine |
WO1998040302A1 (en) * | 1997-03-13 | 1998-09-17 | Otis Elevator Company | Quasi-elliptical cam bidirectional progressive safety |
EP1067084B1 (de) | 1999-06-25 | 2004-12-08 | Inventio Ag | Vorrichtung und Verfahren zur Verhinderung von Vertikalverschiebungen und Vertikalschwingungen an Lastaufnahmemitteln von Vertikalförderanlagen |
EP1213247A1 (de) * | 2000-12-07 | 2002-06-12 | Inventio Ag | Vorrichtung und Verfahren zum Entsperren einer Fangvorrichtung |
EP1424302A1 (de) | 2001-07-16 | 2004-06-02 | Mitsubishi Denki Kabushiki Kaisha | Aufzugseinrichtung |
WO2011021064A1 (en) | 2009-08-19 | 2011-02-24 | Otis Elevator Company | Elevator apparatus |
Also Published As
Publication number | Publication date |
---|---|
CA2874369A1 (en) | 2013-11-28 |
US20150144435A1 (en) | 2015-05-28 |
HK1206320A1 (en) | 2016-01-08 |
EP2855328B1 (de) | 2016-05-25 |
US9714157B2 (en) | 2017-07-25 |
BR112014029119A2 (pt) | 2017-06-27 |
EP2855328A1 (de) | 2015-04-08 |
CN104334487B (zh) | 2017-03-08 |
CN104334487A (zh) | 2015-02-04 |
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