EP0640552B1 - Fang- und Blockiereinrichtung für einen auf Laufschienen geführten Laufwagen eines Schräg- oder Senkrechtaufzugs - Google Patents
Fang- und Blockiereinrichtung für einen auf Laufschienen geführten Laufwagen eines Schräg- oder Senkrechtaufzugs Download PDFInfo
- Publication number
- EP0640552B1 EP0640552B1 EP94810476A EP94810476A EP0640552B1 EP 0640552 B1 EP0640552 B1 EP 0640552B1 EP 94810476 A EP94810476 A EP 94810476A EP 94810476 A EP94810476 A EP 94810476A EP 0640552 B1 EP0640552 B1 EP 0640552B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carriage
- catching device
- main frame
- rails
- sensor wheel
- 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.)
- Expired - Lifetime
Links
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Classifications
-
- 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
- B66B5/20—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 by means of rotatable eccentrically-mounted members
Definitions
- the invention relates to a catching device for a on rails guided carriage of an inclined or vertical elevator with one each by means of self-locking friction on each track attacking, from an eccentrically positioned, in their direction of action preloaded cam, each with a counter surface as Tamper protection, so that the safety gear on the running rails blocks, with a release device in the event of a rope break, for example and / or exceeding a predeterminable maximum speed of the carriage for engaging in the direction of action preloaded cam on the associated track, where the carriage consists of a main frame and one opposite it sliding frame guided in the running direction of the carriage, the connection between the slide frame and the main frame on both sides with the help of an elastically yielding element is provided.
- Such a safety device is known from FR-A-2506279.
- This Safety gear has a trolley on the running rails touches down.
- This car its supporting structure as Main frame is labeled, is equipped with the safety gear.
- the eccentric discs on both sides are over a parallelogram kept away from the tracks when the parallelogram is held by the train of the corresponding train cable (s).
- safety catches and / or Speed limiters also have blocking devices connected to the Grip the rails with a force fit or even a positive fit in engage the rail guide, for example in accordance with DE-GM 77 27 207 a Safety catch device with a spring-loaded eccentric as Cam, which the carriage against a brake block on the Self-locking running rail clamped.
- blocking devices have practically no braking distance worth mentioning, though they grip this with correspondingly high braking decelerations and associated with unwanted noise.
- a safety brake and a speed limiter for one rail-guided vertical elevator is known from DE-PS 119 240 become.
- a catching device are two rotatable, by one Shaft interconnected eccentric discs provided without sliding friction on the associated track attack and against a brake block as an intrusion protection to press; on each eccentric disc, the axis of rotation can be transverse to Dodge moving direction of the car and is over a spring or a hydraulic buffer on the car frame supported.
- the stroke corresponds to this known safety brake the eccentric disc directly the transverse damping path, since the eccentric disc is not blocking on the running rail attacks, but rolls on it when braking; of the Damping travel is therefore quite short, so that the braking deceleration is accordingly high when gripping the safety gear because the slope of the curve on the eccentric must be chosen small so that their intervention on the running track in the area of self-locking Friction remains and less than full for the damping path Revolution of the eccentric disc is available.
- a spring can also be used, since the eccentric disc cannot swing back.
- the invention lies Task based on a safety gear of the type mentioned so that the carriage can cope with any type of load is braked safely and also from the stroke of the safety gear sets completely independent braking distance.
- Slack rope release is provided, which consists of a on the main frame of the Carriage pivoted centrally in a swivel joint Seesaw with two levers on the levers and two on the lever ends of the rocker pivotally mounted in swivel joints There are push rods that pivot on the trigger shaft attack to one of the two pull cables in the event of a rope break trigger the catching and blocking device.
- Tripping device provided a speed limiter, the from a bearing rotatably mounted on each slide rail on the slide frame Sensor wheel and at least one pivotable on the sensor wheel mounted, radially inward spring-loaded, sickle-shaped
- a flyweight which is with a pin on a release lever on the release shaft pivots to in the event of a The speed limit of the Trolley to trigger the safety gear and blocking device.
- the two Centrifugal weights are expediently non-rotatable with the sensor wheel connected housing ring arranged on the of the sensor wheel opposite side is completed with a lid, and in Lids are arranged in slots that are centrifugal Pins are reached; with that are the rotating ones The centrifugal weights are protected on all sides by the housing.
- the Speed limiter at least one leaf spring attached at one end, with the other end of the flyweights radially inwards preloaded, and the housing ring including leaf spring is for determination the release centrifugal force rotatable between in the circumferential direction Cover and sensor wheel held.
- the housing ring including leaf spring is for determination the release centrifugal force rotatable between in the circumferential direction Cover and sensor wheel held.
- two are each other opposite leaf springs are provided, each of which is on a associated centrifugal weight acts.
- FIG. 1 the carriage denoted overall by 1 of a rail-bound, inclined elevator operated by a cable winch is shown; the two pulling ropes acting on the carriage 1 are denoted by 7 in FIG. 1a.
- the carriage 1 consists of a main frame 1 1 , on which a platform 1 3 is supported obliquely via a support 1 4 at an angle of inclination ⁇ .
- the running rails 2 shown horizontally in FIG. 1 run on a slope at an inclination angle ⁇ with respect to the flat horizontal, so that the platform 1 3 then stands horizontally, on which a car, not shown in detail, for people or load transport is built.
- the carriage 1 has on the main frame 1 1 two axes 1 5 , on each of which a two-armed rocker 1 6 is pivotally received in the middle; at the ends of each rocker 1 6 two impellers 1 7 are mounted.
- the wheels 1 7 engage according to Figure 1C in the designated overall by 2 track system whose rails consist of two U-sections 2 1, which are bolted to the box-shaped frame 2, 2 and supported by means of not shown support on foundations on a slope.
- a slide frame 1 1 in the direction A is relapsing movably received and supported on both sides mounted shock absorbers 6 to the main frame 1.
- a catching and blocking device designated as a whole by 3 is mounted above each running rail 2 1 and can be brought into engagement with the running rails 2 1 by two trigger devices 4 and 5, which act independently of one another:
- the catching and blocking device 3 consists of two on both sides, above each running rail 2 1 on the sliding frame 1 1, freely rotatable about its axis 3 11 at the stop 3 61 (hidden in FIG. 3) of a trigger guard 3 6 held eccentrics 3 1 .
- Each eccentric 3 1 is biased by a drop weight 3 3 firmly attached to it in its effective direction W for engagement with the running rail 2 1 and is located as long as the trigger guard 3 6 holds it at its stop 3 61 at a certain distance above the upper leg 2 11 of the U-profile forming the running rail 2 1 .
- the active surface of the eccentric 3 1 is formed by a curve, the slope of which is designed in the circumferential direction for self-locking friction when it engages with the upper leg 2 11 of the running rail 2 1 .
- a certain clearance L to the upper leg of the U-profile 2 1 is provided both on the eccentric 3 1 and on the brake block 3 2 opposite it.
- Both trigger guard 3 6 are connected via a tripping shaft 3 6 rotatably connected to each other. When the release shaft 3 6 is rotated, for example.
- the slack rope release is best seen in Fig.1a) and is generally designated 4; Furthermore, a speed limiter, generally designated 5, is arranged on each of the two catching and blocking devices 3, which responds to the catching and blocking device 3 independently of the slack rope release 4 when the carriage 1 in the direction of travel A downwards exceeds its predetermined maximum speed, for example. because of a cable winch brake failure.
- the slack rope release 4 shown in Figure 1a) consists of a centrally pivotally mounted in the swivel joint 11 on the main frame 4 1 1 4 rocker. 1 At the opposite levers of the rocker 4 1 , the two pull cables 7 attack. At both lever ends of the rocker 4 1 , push rods 4 2 are pivotally mounted in swivel joints 4 21 , each of which engages via slots 4 22 on a pin 3 41 of the trigger shaft 3 4 of the catching and blocking device 3. The length of the slots 4 22 in the push rods 4 2 is matched to the damping stroke D during braking.
- the overall speed limiter designated 5 is shown in detail in FIG . 4 .
- a sensor wheel 5 1 is freely rotatably mounted on each running rail 2 1 on a sensor wheel axis 5 11 fixed to the sliding frame, which coincides with the eccentric rotation axis 3 11 , and rolls under the load of the sliding frame 1 2 on the upper leg 2 11 of the U- forming the running rail.
- Profiles 2 1 from; its direction of rotation in the direction of travel A down is also designated A.
- an annular housing 5 2 is firmly connected and laterally closed with a housing cover 5 21 .
- a centrifugal release device In the housing 5 2 there is a centrifugal release device:
- Two opposing crescent-shaped flyweights 5 3 , 5 3 ' are each pivoted at one end in swivel joints 5 4 and 5 4 ' on the sensor wheel 5 1 and each have a fixed pin 5 31 at their other end, which has an oblique slot 5 7 in the housing cover 5 21 passes through, as shown in Fig. 4 bottom right.
- the two flyweights 5 3 , 5 3 ' are inevitably connected to a joint parallelogram via a coupling 5 6 in two further swivel joints 5 5 , 5 5 ', so they always perform synchronous movements with one another as cranks of a parallel crank mechanism.
- the articulated parallelogram with the rotary joints 5 4 -5 5 -5 5 '-5 4 ' is constructed such that the coupling on one of the centrifugal weights 5 3 on the side facing away from it and on the other centrifugal weight 5 3 'on the side of its bearing 5 facing it 4 or 5 4 'in the hinge 5 5 or 5 5 '.
- two opposing leaf springs 5 8 are attached, which act on the respective centrifugal weight 5 3 , 5 3 'radially inwards and determine the lever arm H with their point of application at the centrifugal weight 5 3 for sensor wheel-fixed mounting 5 4 ; thereby the centrifugal weights 5 3 , 5 3 'are biased in a defined manner.
- the pins 5 31 which pass through the housing cover 5 21 in the slot 5 7 pivot from their radially inner stop at a distance R 1 to Rotary axis 5 11 radially outwards and strike at the distance R 2 at the other end of the slot 5 7 , whereby they come into engagement with the release lever 3 5 of the catching and blocking device 3 shown in FIGS. 2 and 3 and the trigger guard 3 6 trigger.
- FIG. 6 The mode of operation of the catching and blocking device 3 is explained in detail below in connection with the speed limiter 5 with reference to FIGS. 5 and 6, the FIGS . A) to c) of which correspond directly to one another, the details relating to the carriage 1 being better shown in FIG. 5 emerge, while the details relating to the catching and blocking device 3 and the centrifugal force release 5 can best be seen from FIG. 6:
- the direction of travel in the downward direction of travel is designated by A; the catching and blocking device 3 is W in its direction of action can be brought into engagement with the running rail 2.
- the normal state is shown in the two figures a) .
- the sensor wheel 5 1 rolls under the weight load through the sliding frame 1 2 on the upper leg 2 11 of the running rail 2 1 without sliding.
- the eccentric 3 1 together with the drop weight 3 3 is held at the stop 3 61 (visible in FIG. 6b) of the trigger guard 3 6 and is biased in the effective direction W by the drop weight 3 3 .
- the flyweights 5 3 are at normal speed under the pretension by the leaf spring 5 9 at their radially inner stop R 1 (according to FIG. 4), on which their pins 5 31 rotate about the axis 5 11 without striking the release lever 3 5 .
- the shock absorber 6 is retracted in the normal state shown.
- the carriage 1 for whatever reason, exceeded its maximum permissible speed, so that the centrifugal force release of the speed limiter 5 engages, ie overcomes its leaf spring preload, and the two centrifugal weights 5 3, each guided as a crank of a joint parallelogram, have in common with their pins 5 31 pivot radially outwards and strike the radially outer stop R 2 (according to FIG. 4 ) in the slot 5 7 of the housing cover 5 21 .
- one of the two pins 5 31 engages with the release lever 3 5 and releases the trigger guard 3 6 by rotating the release shaft 3 4 .
- the maximum damping and braking distance is denoted by D in FIGS. 5 and 6 and can be dimensioned in a suitable manner for the respective application by designing the associated components.
- a final buffer 1 8 is arranged on the main frame 1 1, can ascend against the sliding frame 1 2, when the carriage is overloaded. 1
- the catching and blocking device 3 acts analogously, only the rotation of the release shaft 3 4 for releasing the trigger guard 3 6 is initiated by the push rod 4 2 of the slack rope release 4.
- the eccentrics 3 1 of the catching and blocking device 3 can be unscrewed from the running rails 2 1 with the aid of the cable winch and hung again on the associated trigger guard 3 6 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Types And Forms Of Lifts (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Description
- Fig.1
- zeigt den Laufwagen eines stationären Schrägaufzugs nach
der Erfindung.
- Fig.1a ist eine Draufsicht und die
- Fig.1b und c sind die der Fig.1a entsprechenden Ansichten, jeweils von der Seite gesehen.
- Fig.2
- ist eine Schnittdarstellung entlang der Linie II-II in Fig.1b,
- Fig.3
- ist eine Ansicht in Richtung III-III der Fig.2,
- Fig.4
- zeigt den erfindungsgemäßen Geschwindigkeitsbegrenzer in einer Ansicht und in einem Schnitt. In den
- Fig.5 und 6
- ist die Wirkungsweise der Fang- und
Blockiereinrichtung nach der Erfindung in drei maßgeblichen
Betriebszuständen dargestellt, wobei die Darstellungen a)
bis c) in
- Fig.6 jeweils einem vergrößerten Ausschnitt der Fig.5 entsprechen und die beiden
- Fig.5a) bzw. 6a) den Exzenter außer Eingriff zeigen, gemäß den
- Fig.5b) bzw. 6b) hat die Fliehkraftauslösung den Exzenter in Anlage an die Laufschiene gebracht und in den
- Fig.5c) bzw. 6c) hat der Exzenter den Gleitrahmen an der Laufschiene blockiert und den Laufwagen nach erfolgter Bremsung zum Stillstand gebracht.
Bezugszeichenliste | |
1 Laufwagen | 5 Geschwindigkeitsbegrenzer |
11 Hauptrahmen | 51 Sensorrad |
12 Gleitrahmen | 511 Sensorradachse |
13 Plattform | 52 Gehäusering |
14 Stütze | 521 Gehäusedeckel |
15 Achse | 53 Fliehgewicht |
16 Laufwippe | 531 Stift |
17 Laufrad | 54 Drehgelenk |
18 Endpuffer | 55 Drehgelenk |
56 Koppel | |
2 Laufschienen | 57 Schlitz |
21 U-Profil (Laufschiene) | 59 Blattfeder |
211 Schenkel | |
212 Steg | |
22 Rahmen | 6 Stoßdämpfer |
3 Fang- und Blockiereinrichtung | 7 Zugseil |
31 Exzenter | |
311 Exzenterdrehachse | |
32 Bremsblock | |
33 Fallgewicht | |
34 Auslösewelle | |
341 Stift | A Fahrtrichtung abwärts |
35 Auslösehebel | D Dämfung, Bremsweg |
36 Abzugbügel | H Hebelarm |
361 Anschlag | L Lüftspiel |
4 Schlaffseilauslösung | R1 radialer Anschlag |
41 Wippe | R2 radialer Anschlag |
411 Drehgelenk | |
42 Schubstange | |
421 Drehgelenk | |
422 Schlitz | α Neigungswinkel |
Claims (9)
- Fangeinrichtung für einen auf Laufschienen (2) geführten Laufwagen (1) eines Schräg- oder Senkrechtaufzugs mit je einer mittels selbsthemmender Reibung an jeder Laufschiene (2) angreifenden, aus einer exzentrisch gelagerten, in ihre Wirkrichtung vorgespannten Kurvenscheibe (Exzenter 31), mit je einer Gegenwirkfläche (32) als Eingriffsicherung, so dass die Fangeinrichtung (3) an den Laufschienen (2) blockierend angreift, mit einer Auslöseeinrichtung (4 bzw. 5) bei bspw. Seilbruch und/oder Überschreitung einer vorbestimmbaren Höchstgeschwindigkeit des Laufwagens (1) für den Eingriff der in Wirkrichtung vorgespannten Kurvenscheibe (31) an der zugehörigen Laufschiene (2), wobei der Laufwagen (1) aus einem Hauptrahmen (11) und aus einem gegenüber diesem in Laufrichtung (A) des Laufwagens (1) schubbeweglich geführten Gleitrahmen (12), wobei die Verbindung zwischen Gleitrahmen (12) und Hauptrahmen (11) beidseitig mit Hilfe von jeweils einem elastisch nachgebenden Element (6) vorgesehen ist, dadurch gekennzeichnet, dass die Drehachse (311) der an einem Anschlag (361) gehaltenen Kurvenscheibe (31) an dem Gleitrahmen (12) gegenüber dem Hauptrahmen (11) des Laufwagens (1) schubbeweglich geführt ist, dass die Gegenwirkflächen (32) als Eingriffsicherung jeweils aus einem mit dem Gleitrahmen fest verbundenen Bremsblock (32) bestehen, dass das elastisch nachgebende Element ein Stossdämpfer (6) zur Dämpfung der Relativbewegung zwischen Gleitrahmen (12) und Hauptrahmen (11) beim Eingriff der Kurvenscheiben (3) an den Laufschienen (2) ist.
- Fangeinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zur Vorspannung jedes Exzenters (31) ein Fallgewicht (33) dient, das fest am Exzenter (31) angebracht ist.
- Fangeinrichtung nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die Auslöseeinrichtung (4 bzw. 5) an jedem Exzenter (31) aus je einem Abzugbügel (36) mit einem Anschlag (36) besteht, die über eine Auslösewelle (34) drehfest miteinander verbunden sind.
- Fangeinrichtung für einen seilbetriebenen Laufwagen (1) nach Anspruch 3, dadurch gekennzeichnet,
daß als erste Auslöseeinrichtung eine Schlaffseilauslösung (4) vorgesehen ist, die auseiner am Hauptrahmen (11) des Laufwagens (1) mittig schwenkbar (Drehgelenk 411) gelagerten Wippe (41), an deren Hebeln die Zugseile (7) angreifen, undzwei an den Hebelenden der Wippe (41) schwenkbar (Drehgelenk 421) gelagerten Schubstangen (42) besteht,die an der Auslösewelle (34) schwenkbeweglich angreifen. - Fangeinrichtung nach Anspruch 3, dadurch gekennzeichnet,
daß als zweite Auslöseeinrichtung ein Geschwindigkeitsbegrenzer (5) vorgesehen ist, der auseinem an jeder Laufschiene (2) drehbar (Achse 511) am Gleitrahmen (12) gelagerten Sensorrad (51) undzumindest einem am Sensorrad (51) schwenkbeweglich gelagerten, radial nach innen federvorgespannten, sichelförmigen Fliehgewicht (53) besteht,das mit einem Stift (531) an der Auslösewelle (34) schwenkbeweglich angreift. - Fangeinrichtung nach Anspruch 5, dadurch gekennzeichnet,
daß zwei einander gegenüberliegene Fliehgewichte (53) vorgesehen sind, die mittels einer Koppel (56) über zwei weitere Drehgelenke (55) zu einem Gelenkparallelogramm (54-55-55'-54') zwangläufig derart miteinander verbunden sind, daß sie in radialer Richtung synchron beweglich sind. - Fangeinrichtung nach Anspruch 6, dadurch gekennzeichnet,
daß die beiden Fliehgewichte (53) in einem mit dem Sensorrad (51) drehfest verbundenen Gehäusering (52) angeordnet sind, der auf der dem Sensorrad (51) abgewandten Seite mit einem Deckel (521) abgeschlossen ist, und daß im Deckel (521) Schlitze (51) angeordnet sind, die von den fliehgewichtfesten Stiften (531) durchgriffen sind. - Fangeinrichtung nach Anspruch 7, dadurch gekennzeichnet,
daß am Gehäusering (52) zumindest eine Blattfeder (58) einenends befestigt ist, die mit ihrem anderen Ende die Fliehgewichte (53) radial nach innen vorspannt, und daß der Gehäusering (52) samt Blattfeder (58) zur Bestimmung der Auslösefliehkraft in Umfangsrichtung verdrehbar zwischen Deckel (521) und Sensorrad (51) gehalten ist. - Fangeinrichtung nach Anspruch 8, dadurch gekennzeichnet,
daß zwei einander gegenüberliegende Blattfedern (58) auf je ein zugehöriges Fliehgewicht (53) einwirken.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH251093 | 1993-08-24 | ||
CH2510/93 | 1993-08-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0640552A1 EP0640552A1 (de) | 1995-03-01 |
EP0640552B1 true EP0640552B1 (de) | 1998-09-09 |
Family
ID=4235414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94810476A Expired - Lifetime EP0640552B1 (de) | 1993-08-24 | 1994-08-17 | Fang- und Blockiereinrichtung für einen auf Laufschienen geführten Laufwagen eines Schräg- oder Senkrechtaufzugs |
Country Status (6)
Country | Link |
---|---|
US (1) | US5487450A (de) |
EP (1) | EP0640552B1 (de) |
AT (1) | ATE170822T1 (de) |
CA (1) | CA2130624A1 (de) |
DE (1) | DE59406874D1 (de) |
ES (1) | ES2121175T3 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2300176B (en) * | 1995-04-28 | 1998-11-25 | Wessex Medical Equipment Compa | Improvements in or relating to domestic, through-floor, verticle lifts for use by persons with limited mobility |
ATE226554T1 (de) * | 1997-08-21 | 2002-11-15 | Aufzugstechnologie Schlosser G | Bremsfangvorrichtung |
US6161653A (en) * | 1998-12-22 | 2000-12-19 | Otis Elevator Company | Ropeless governor mechanism for an elevator car |
US6253879B1 (en) | 1998-12-22 | 2001-07-03 | Otis Elevator Company | Apparatus and method of determining overspeed of an elevator car |
US6173813B1 (en) | 1998-12-23 | 2001-01-16 | Otis Elevator Company | Electronic control for an elevator braking system |
US6170614B1 (en) | 1998-12-29 | 2001-01-09 | Otis Elevator Company | Electronic overspeed governor for elevators |
KR100620436B1 (ko) * | 2001-11-27 | 2006-09-12 | 미쓰비시덴키 가부시키가이샤 | 엘리베이터의 비상정지장치 |
PL1870369T3 (pl) * | 2006-06-19 | 2018-06-29 | Inventio Ag | Sposób sprawdzania urządzenia hamującego dźwigu, sposób uruchamiania instalacji dźwigowej i urządzenie do przeprowadzania uruchomienia |
SG138531A1 (en) * | 2006-06-19 | 2008-01-28 | Inventio Ag | Method of checking lift braking equipment, a method for placing a lift installation in operation and equipment for carrying out placing in operation |
US8066200B2 (en) * | 2008-03-12 | 2011-11-29 | Hilltrac, Inc. | Hollow structural members, a rail system and methods of manufacturing |
US9169104B2 (en) | 2010-12-17 | 2015-10-27 | Inventio Ag | Activating a safety gear |
JP5782138B2 (ja) | 2011-02-07 | 2015-09-24 | オーチス エレベータ カンパニーOtis Elevator Company | 個別のシーブ上の2つのトリッピングメカニズムを有したエレベータガバナ |
LT6066B (lt) * | 2012-10-22 | 2014-09-25 | Mb "Ekodarna" | Keltuvas |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4029177A (en) * | 1975-04-16 | 1977-06-14 | International Telephone And Telegraph Corporation | Overspeed brake for a lift car |
DE2826309C2 (de) * | 1978-06-15 | 1983-12-29 | Gerhard Ing.(Grad.) 8047 Karlsfeld Schlosser | Auslöseeinrichtung zum Verbinden von zwei Fangvorrichtungen in Aufzügen |
FR2506279A1 (fr) * | 1981-05-22 | 1982-11-26 | Alain Clavel | Dispositif de freinage de securite automatique, pour chariot monte-charge |
US4662481A (en) * | 1986-03-14 | 1987-05-05 | Westinghouse Electric Corp. | Elevator system |
US5052523A (en) * | 1991-02-14 | 1991-10-01 | Otis Elevator Company | Elevator car-mounted govenor system |
JPH04365771A (ja) * | 1991-06-13 | 1992-12-17 | Toshiba Corp | エレベータ |
-
1994
- 1994-08-17 ES ES94810476T patent/ES2121175T3/es not_active Expired - Lifetime
- 1994-08-17 DE DE59406874T patent/DE59406874D1/de not_active Expired - Fee Related
- 1994-08-17 EP EP94810476A patent/EP0640552B1/de not_active Expired - Lifetime
- 1994-08-17 AT AT94810476T patent/ATE170822T1/de not_active IP Right Cessation
- 1994-08-22 CA CA002130624A patent/CA2130624A1/en not_active Abandoned
- 1994-08-23 US US08/294,651 patent/US5487450A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE170822T1 (de) | 1998-09-15 |
ES2121175T3 (es) | 1998-11-16 |
EP0640552A1 (de) | 1995-03-01 |
US5487450A (en) | 1996-01-30 |
CA2130624A1 (en) | 1995-02-25 |
DE59406874D1 (de) | 1998-10-15 |
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