EP0905079A1 - Bremsfangvorrichtung - Google Patents
Bremsfangvorrichtung Download PDFInfo
- Publication number
- EP0905079A1 EP0905079A1 EP98117541A EP98117541A EP0905079A1 EP 0905079 A1 EP0905079 A1 EP 0905079A1 EP 98117541 A EP98117541 A EP 98117541A EP 98117541 A EP98117541 A EP 98117541A EP 0905079 A1 EP0905079 A1 EP 0905079A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- brake
- rocker
- safety device
- brake safety
- braking force
- 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.)
- Granted
Links
Images
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
-
- 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
Definitions
- the present invention relates to a brake safety device with release device for elevator cars, which are guided of guide rails, in the up and down direction of travel and which, monitored by the speed limiter, at Exceeding speed limits by means of these Safety gear with up and down driving direction different braking force from this safety gear can be braked to a standstill.
- Different braking force means the braking force and thus the deceleration in the event of an emergency stop in the upright position for physical reasons and for human reasons Compatibility in the up direction should be significantly smaller than in the down direction.
- Double-acting Safety devices are those with double eccentrics.
- a double-acting eccentric designated part in the form of a segment of a circle with a Radius which is larger than the radius of rotation used. This will cause the Guide rail against an opposite spring device instead, the strength of the latter being the amount of braking force results.
- the spring device is adjustable, but works in both directions of engagement of the eccentric, what then the same deceleration values for both directions of travel results.
- a technical article in the LIFTREPORT (Issue 5/91, page 38) describes one in both directions with different braking force acting safety brake BFx3.
- One over cable and Rope wrap trigger device is with one Eccentric disc operatively connected on each side of the cabin.
- the Eccentric discs have two flats, which as Stop and the rotary movement when triggered to stop.
- the two Eccentric discs depending on the direction of travel, clockwise or Turned counterclockwise up to these stop surfaces. Of the with the rotation increases the radius of the eccentric discs an opposite compression spring together, which then the Braking effect occurs.
- the angle of rotation is smaller than in the downward direction and this is how, as desired, the Braking effect and thus the deceleration in the upward direction smaller.
- the ratio of the two braking effects in the opening and the downward direction to each other is through the given geometric dimensions of the eccentric discs and can cannot be changed afterwards.
- the braking force is only general adjustable. Due to the rolling path of the eccentric discs there is a relatively long reaction path to the full one Braking effect.
- the invention is characterized inter alia by characterized in that as Locking element an up and down tilting rocker and an in Up and down driving direction generating an uneven braking force Facility is present. A short one is also advantageous Reaction path up to the full braking effect.
- Locking element an up and down tilting rocker and an in Up and down driving direction generating an uneven braking force Facility is present.
- a short one is also advantageous Reaction path up to the full braking effect.
- the type with only simply existing brake shoes and actuators for both directions of travel is structurally simple and inexpensive to manufacture.
- the braking force in the up and down directions is uneven generating device is a spring-loaded two-point bearing designed for the rocker that can be tilted up and down.
- the spring-supported point or swivel bearings are counter Spring-loaded articulated cups formed with defined standby position.
- the springs of the two point or swivel bearings are included an adjusting screw to adjust the spring preload Mistake.
- the rocker points in the standby position of the Brake safety device, joint balls resting in joint sockets on.
- the brake shoes are in the standby position by one Retention spring pressed against the stops that after the Brake safety device also serve as stops for the rockers.
- the seesaw is engaged by one that engages in the seesaw Driver pin actuated, which with any Tripping device is connected.
- the trigger device can be in the simplest form from a release rod connected to the governor rope Release lever and driver pin exist.
- the brake shoe is articulated to the rocker.
- the rocker can be tilted over the dead center, which provides greater security against the automatic Falling back results.
- the tilted rocker has a stop defined End position.
- the brake safety device can have one or two rockers.
- a brake safety device with a rocker has a fixed and a movable brake shoe.
- a second rocker can be supported on fixed abutments.
- the trigger device can be used as a simple lever mechanism Diagonal bracket and rope coupling to be formed.
- a fulcrum of the lever mechanism is with a release shaft for triggering the parallel safety gear on the coupled on the other side of the cabin.
- the brake safety device shown in Figure 1 consists in essentially from a cross-movable, in a not shown cabin support structure mounted, base plate 8, on which a stop block 23 on the left and a right Spring block 22 is arranged. Furthermore, to the left of one Guide rail 7 between a brake shoe 14.1 with a brake pad 15.1 and the stop block 23 a triangular in the basic form Rocker 1.1 available.
- the rocker 1.1 has a lower and upper Joint ball 2.1 / 2.2, each in one in the stop block 23 worked out upper and lower fixed socket 12.1 / 12.2 rest. At the top of the rocker 1.1, this is by means of an articulated bearing 3.1 operatively connected to the brake shoe 14.1.
- the joint balls 2.1 / 2.2 and the spherical bearing 3.1 form the Corner points of an approximately isosceles triangle.
- the practical executed outer shape of the seesaw is not to the shown form bound and can be used within wide limits vary as long as their intended function is guaranteed.
- the rocker In the standby position shown, the rocker is 1.1 by means of one in the stop block 23 and on the rocker 1.1 attached retaining spring 5.1 held.
- the brake shoe 14.1 is in this position on the back and one on top Double stop 13.1 / 13.2 loosely so that during normal Lift operation no contact with the guide rail 7 takes place.
- a roughly on the median of the Rocker triangle existing slot 20.1 serves the actuating Engagement of, for example, a round bolt, Driver 4.1.
- the driver 4.1 is located on a Release lever 19, which is part of a T-shaped release rod 18th forms, the latter at the top and bottom with a governor rope 16 is coupled.
- the Movable joint pans 6.1 / 6.2 rest in a defined position Thrust washers 9, which are in the standby position Brake safety device from an upper and lower compression spring 10.1 / 10.2 are pressed against an inner stop.
- the upper Compression spring 10.1 is in an upper spring chamber 17.1 and lower compression spring 10.2 in a lower spring chamber 17.2 built-in.
- the upper compression spring 10.1 is by means of an upper one Adjusting screw 11.1 via the second thrust washer 9 is variable preloadable.
- the lower compression spring 10.2 is independent of the upper, by means of a lower adjusting screw 11.2 over the second thrust washer 9 variably biased.
- the brake safety device according to the invention is shown in FIG engaged position with a brake catch in the up-driving direction shown.
- the prestressed lower compression spring 10.2 compressed by the amount X.
- the lower spring 10.2 with a possibly weaker dimension the set screw 11.2 less biased what accordingly results in smaller delay values.
- FIG. 4 shows a variant for the triggering device shown in the form of a lever mechanism 28.
- the first Angle lever 25 is rotatable about a pivot point 25.3 and carries the driver at the end of its horizontal leg 25.1 4.2.
- the vertical leg 25.2 is at its upper end hingedly connected to a connecting strap 27 which in turn with its other end with the lower end of the vertical leg 24.2 of the second angle lever 24 also is articulated.
- the second angle lever 24 is rotatable about a pivot point 24.3 and carries at its end of the left horizontal leg 24.1 the driver 4.1.
- the horizontal leg 24.1 of the second angle lever 24 has also as a connection to a governor rope 16 Rope clutch 26 on.
- the inconsistent rotational movements of the both levers 24/25 in the event of a brake release cause one synchronous up or down movement of the two drivers 4.1 and 4.2 and a correspondingly common tilting in the same Direction of the two rockers 1.1 and 1.2.
- the fulcrum 24.3 is advantageous at the end of a connecting shaft, not shown arranged which, when triggered, the second in parallel working safety gear on the other side of the Cabin operated.
- FIG. 5 shows a simplified version of the Brake safety device according to the invention.
- this version is only a single rocker 1 with a single movable Brake shoe 14 with brake pad 15 used.
- a opposite fixed brake shoe 30 with brake pad 31 is on attached to an abutment 29, or in a positive horizontal guide 32 for receiving the vertical Thrust held. Because when the Brake safety device an up or down movement of the movable brake shoe 14 takes place, the fixed brake shoe 30 a larger vertical dimension, so that the horizontal Projection of the movable brake shoe 14 as possible on it whole vertical length to the opposite fixed Brake shoe 30 falls.
- the horizontal displacement is in Comparison with the version with two rockers 1.1 and 1.2 at same dimension of rocker 1 only 1 ⁇ 2 X.
- Geometric dimensions of the rocker 1 can this loss of path partially or fully compensated. This can for example by increasing the distance between the Joint balls 2.1 and 2.2 and the movable joint socket 6.1 and 6.2, and possibly a slightly different height of the triangle can be achieved.
- the function of the simplified safety gear applies Initial friction of the movable brake shoe 14/15 the guide rail 7, because with a larger base distance in Triangle also generate a larger vertical tilting force got to.
- the simplified trigger bar is used as the trigger device 21 or the angle lever 24 applicable.
- Safety gear are simplified and schematic shown. They are primarily intended to be the solution principle and the functions in an easily understandable and descriptive way point out. The practical execution can do more in detail or differ less from the depictions shown. For example, for the rockers 1 / 1.1 / 1.2 additional possibly inevitable guide elements provided. Further the practical version will have separate stops for the Brake shoes 14/15 when the Have safety gear that the relatively high absorb vertical deceleration forces when braking. Thereby the spherical bearings 3 / 3.1 / 3.2 only the horizontal Take up pressure forces.
- a compression spring 10.1 / 10.2 can be any permanently elastic Element with a suitable characteristic can be used.
- Set screws 11.1 / 11.2 are mechanical or others Fuses are provided which automatically adjust the Prevent set screws 10.1 / 10.2 reliably.
- Retaining spring for the rockers 1 / 1.1 / 1.2 can replace them a spreading compression spring between the rockers 1 / 1.1 / 1.2 be provided. Points of attack for such a compression spring would be, for example, laterally led out bearing bolts Spherical bearing 3 / 3.1 / 3.2 suitable.
- the movable brake shoes 14 / 14.1 / 14.2 with the brake pads 15 / 15.1 / 15.2 are, after removing any covers, easily exchangeable by opening the spherical bearings 3 / 3.1 / 3.2.
- the fixed brake shoe 30/31 can be removed after removing the cover are laterally pulled out of the guide 32.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Gear Transmission (AREA)
- Lock And Its Accessories (AREA)
- Pens And Brushes (AREA)
Abstract
Description
Claims (9)
- Bremsfangvorrichtung mit Auslöseeinrichtung für Aufzugskabinen, welche sich, geführt von Führungsschienen, in Auf- und Ab-Fahrrichtung bewegen und welche, überwacht vom Geschwindigkeitsbegrenzer, beim Ueberschreiten von Geschwindigkeitsgrenzwerten mit in Auf- und in Ab-Fahrrichtung unterschiedlicher Bremskraft von dieser Bremsfangvorrichtung bis zum Stillstand abgebremst werden können,
dadurch gekennzeichnet,dass die Bremsfangvorrichtung mindestens eine kippbare Wippe (1/1.1/1.2) und eine Einrichtung (6.1/2, 10.1/2, 11.1/2) für die Einstellung der Bremskraft für die Auf-Fahrrichtung und für die davon unabhängige Einstellung der Bremskraft für die Ab-Fahrrichtung aufweist. - Bremsfangvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,dass die Wippe (1, 1.1/2) mit einer Bremsbacke (14, 14.1/2, 15, 15.1/2) wirkverbunden ist. - Bremsfangvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,dass die Wippe (1, 1.1/2) auf- und ab-kippbar angeordnet ist und dass mindestens eine der Wippen (1, 1.2) eine federgestützte, nachgiebige Zweipunktlagerung (2.1/2, 6.1/2, 10.1/2) aufweist. - Bremsfangvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,dass die Einrichtung für die Einstellung der Bremskraft für die Auf-Fahrrichtung und die Ab-Fahrrichtung je eine Druckscheibe (9), je eine Druckfeder (10.1, 10.2) und je eine Stellschraube (11.1, 11.2) aufweist. - Bremsfangvorrichtung nach Anspruch 2,
dadurch gekennzeichnet,dass die Zweipunktlagerung der Wippe (1, 1.1/2) mittels Gelenkkugeln (2.1/2), verschiebbaren (6.1/2) und festen (12.1/2) Gelenkpfannen gebildet wird. - Bremsfangvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,dass für die Begrenzung der Kippbewegung der Wippe (1, 1.1/2) Anschläge (13.1/2) vorhanden sind, welche eine Kippbewegung der Wippe (1, 1.1/2), je nach Anordnung der Anschläge (13.1/2), bis vor oder über ihren Totpunkt ermöglichen. - Bremsfangvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,dass die Auslöseeinrichtung eine Auslösestange (18,21), einen Auslösehebel (19) und mindestens einen Mitnehmer (4, 4.1/2) aufweist. - Bremsfangvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,dass die Auslöseeinrichtung aus einem Hebelwerk (28) mit durch eine Verbindungslasche (27) verbundenen Winkelhebeln (24, 25) besteht unddass ein Drehpunkt (24.3 oder 25.3) über eine Verbindungswelle mit einer zweiten parallelen Bremsfangvorrichtung gekuppelt ist. - Bremsfangvorrichtung nach Anspruch 1, dadurch gekennzeichnet,dass die Bremsfangvorrichtung eine Wippe (1), eine bewegliche Bremsbacke (14, 15), eine feste Bremsbacke (30, 31), ein Widerlager (29), einen Federblock (22) und eine Auslösestange (21) aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97810711 | 1997-09-29 | ||
EP97810711 | 1997-09-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0905079A1 true EP0905079A1 (de) | 1999-03-31 |
EP0905079B1 EP0905079B1 (de) | 2003-05-28 |
Family
ID=8230405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98117541A Expired - Lifetime EP0905079B1 (de) | 1997-09-29 | 1998-09-16 | Bremsfangvorrichtung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6092630A (de) |
EP (1) | EP0905079B1 (de) |
JP (1) | JPH11157761A (de) |
AT (1) | ATE241560T1 (de) |
CA (1) | CA2248398A1 (de) |
DE (1) | DE59808516D1 (de) |
ES (1) | ES2201383T3 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE50103138D1 (de) * | 2000-05-25 | 2004-09-09 | Inventio Ag | Bremseinrichtung für einen aufzug |
ES2184615B1 (es) * | 2001-05-30 | 2004-10-01 | S.A. De Vera (Savera) | Paracaidas progresivo bidireccional para ascensor. |
WO2004033353A1 (en) * | 2002-10-09 | 2004-04-22 | Otis Elevator Company | Combined elevator guiding and safety braking device |
US7374021B2 (en) * | 2002-10-09 | 2008-05-20 | Otis Elevator Company | Combined elevator guiding and safety braking device |
MY135853A (en) * | 2003-02-04 | 2008-07-31 | Inventio Ag | Safety device for an elevator |
US20070252126A1 (en) * | 2004-03-15 | 2007-11-01 | Haruo Kawakami | Driver and Drive Method for Organic Bistable Electrical Device and Organic Led Display |
FR2882042B1 (fr) * | 2005-02-17 | 2008-10-17 | Dominique Rouzaud | Parachute bidirectionnel d'ascenseur ou similaire, et ascenseur muni d'un tel parachute |
KR100904840B1 (ko) * | 2005-03-25 | 2009-06-25 | 오티스 엘리베이터 컴파니 | 조합형 엘리베이터 안내 및 안전 제동 장치 |
JP4904012B2 (ja) * | 2005-04-08 | 2012-03-28 | 東芝エレベータ株式会社 | エレベータ用ロープブレーキ装置 |
JP5037139B2 (ja) * | 2006-02-01 | 2012-09-26 | 三菱電機株式会社 | エレベータ装置 |
CN101223097B (zh) * | 2006-03-20 | 2012-08-08 | 三菱电机株式会社 | 电梯装置 |
KR100763830B1 (ko) | 2006-05-19 | 2007-10-23 | 윤재한 | 엘리베이터용 로프제동장치 |
IL186678A0 (en) * | 2006-11-16 | 2008-02-09 | Inventio Ag | Brake equipment, lift installation, a method for detecting a function of the brake equipment, and a modernisation set |
BR112012023034A8 (pt) * | 2010-03-18 | 2017-10-17 | Inventio Ag | atuador para dispositivo de frenagem e sistema de elevador |
KR20140002760A (ko) * | 2011-03-22 | 2014-01-08 | 오티스 엘리베이터 컴파니 | 엘리베이터 제동 시스템 |
PL2788271T3 (pl) * | 2011-12-09 | 2015-08-31 | Inventio Ag | Uruchamianie hamulca bezpieczeństwa |
BR112015011997B1 (pt) * | 2012-11-27 | 2022-01-18 | Inventio Ag | Freio de segurança para um sistema de elevador com pelo menos um corpo móvel e método para a frenagem e retenção de um corpo móvel de um sistema de elevador |
US11066274B2 (en) * | 2015-06-30 | 2021-07-20 | Otis Elevator Company | Electromagnetic safety trigger |
WO2017017488A1 (en) * | 2015-07-29 | 2017-02-02 | Otis Elevator Company | Safety block for elevator |
GB2544112B (en) * | 2015-11-09 | 2018-01-03 | Ford Global Tech Llc | Sliding door brake assembly |
US11242222B2 (en) * | 2018-10-26 | 2022-02-08 | Otis Elevator Company | Elevator braking device mechanism |
CN114829283A (zh) * | 2019-12-17 | 2022-07-29 | 因温特奥股份公司 | 用于电梯的防坠装置 |
KR102340759B1 (ko) * | 2020-04-06 | 2021-12-17 | 주충호 | 작업용 리프트의 추락을 방지하는 제동장치 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE805782C (de) * | 1949-05-27 | 1951-05-31 | Gustav Hahn Dipl Ing | Bremsfangvorrichtung fuer Aufzuege |
DE857264C (de) * | 1941-04-21 | 1952-11-27 | Machinenfabriek Breda Voorheen | Fangvorrichtung fuer Aufzuege |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2744986A1 (de) * | 1977-10-06 | 1979-04-12 | Wyhlen Ag Eisenbau | Fangbremse |
FI85129C (fi) * | 1989-12-14 | 1992-03-10 | Kone Oy | Faongapparat. |
EP0440839B2 (de) * | 1990-02-06 | 1999-02-03 | Thyssen Aufzüge Gmbh | Vorrichtung zur Verhinderung unkontrollierter Bewegungen von Aufzügen |
US5495919A (en) * | 1994-04-25 | 1996-03-05 | Otis Elevator Company | Safety brake apparatus for an elevator car or counterweight |
EP0787676A1 (de) * | 1996-01-31 | 1997-08-06 | Inventio Ag | Sicherheitseinrichtung |
-
1998
- 1998-09-16 ES ES98117541T patent/ES2201383T3/es not_active Expired - Lifetime
- 1998-09-16 DE DE59808516T patent/DE59808516D1/de not_active Expired - Fee Related
- 1998-09-16 EP EP98117541A patent/EP0905079B1/de not_active Expired - Lifetime
- 1998-09-16 AT AT98117541T patent/ATE241560T1/de not_active IP Right Cessation
- 1998-09-23 US US09/159,309 patent/US6092630A/en not_active Expired - Fee Related
- 1998-09-24 JP JP10268861A patent/JPH11157761A/ja not_active Withdrawn
- 1998-09-28 CA CA002248398A patent/CA2248398A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE857264C (de) * | 1941-04-21 | 1952-11-27 | Machinenfabriek Breda Voorheen | Fangvorrichtung fuer Aufzuege |
DE805782C (de) * | 1949-05-27 | 1951-05-31 | Gustav Hahn Dipl Ing | Bremsfangvorrichtung fuer Aufzuege |
Also Published As
Publication number | Publication date |
---|---|
CA2248398A1 (en) | 1999-03-29 |
ATE241560T1 (de) | 2003-06-15 |
EP0905079B1 (de) | 2003-05-28 |
US6092630A (en) | 2000-07-25 |
DE59808516D1 (de) | 2003-07-03 |
JPH11157761A (ja) | 1999-06-15 |
ES2201383T3 (es) | 2004-03-16 |
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