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WO2002053485A1 - Dispositif de frein d'urgence pour ascenseur - Google Patents

Dispositif de frein d'urgence pour ascenseur Download PDF

Info

Publication number
WO2002053485A1
WO2002053485A1 PCT/JP2000/009424 JP0009424W WO02053485A1 WO 2002053485 A1 WO2002053485 A1 WO 2002053485A1 JP 0009424 W JP0009424 W JP 0009424W WO 02053485 A1 WO02053485 A1 WO 02053485A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheave
car
guide body
holding
roller
Prior art date
Application number
PCT/JP2000/009424
Other languages
English (en)
Japanese (ja)
Inventor
Kazumasa Ito
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
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 Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to JP2002554611A priority Critical patent/JPWO2002053485A1/ja
Priority to PCT/JP2000/009424 priority patent/WO2002053485A1/fr
Priority to EP00985996A priority patent/EP1352869A4/fr
Publication of WO2002053485A1 publication Critical patent/WO2002053485A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect

Definitions

  • the present invention relates to an emergency emergency braking device for stopping a rise of a car when the car rises at an abnormal speed.
  • the present invention has been made to solve the above-mentioned problems, and is capable of instantly generating a braking force with a simple and compact structure when the car rises at an abnormal speed.
  • the purpose is to obtain an emergency braking device that can safely stop the car.
  • the emergency braking device is provided at the upper part of the hoistway.
  • a pre-set speed that is provided on an elevator equipped with a rotatable sheave, a main rope wrapped around the sheave, and a cage and a counterweight suspended from the main rope.
  • the above steps stop the car when the car rises, and the guide body facing the outer peripheral surface of the sheave, the braking position biting between the guide body and the sheave, and the release released from the sheave Roller that can reciprocate along the guide body to and from the position, urging means for urging the roller toward the braking position, and holding the roller at the release position against the urging means and preset It is provided with a holding means for releasing the holding of the opening when the car rises at a speed higher than the set speed.
  • the emergency braking device for an elevator includes a rotatable sheave provided at an upper part of a hoistway, a main rope wound around the sheave, and a main rope hung on the main rope. It is installed in an elevator equipped with a car and a counterweight, and stops the car when the car rises at a speed higher than a preset speed, and is arranged coaxially with the sheave. And the disk that is in frictional contact with the sheave and rotates with the sheave, the guide body facing the outer peripheral surface of the disk, the braking position that cuts between the guide body and the disk, and the release position that is separated from the disk.
  • the basket rises Holding means for releasing the holding of the opening when the contact is made.
  • FIG. 1 is a configuration diagram showing an elevator having an emergency brake device according to Embodiment 1 of the present invention
  • FIG. 2 is a configuration diagram showing an enlarged main part of FIG. 1,
  • FIG. 3 is a sectional view taken along the line I I I—II I I of FIG.
  • FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3,
  • FIG. 5 is a front view showing the rollers in Figure 2
  • FIG. 6 is a side view showing the opening of FIG. 5,
  • FIG. 7 is a sectional view of an emergency brake device according to Embodiment 2 of the present invention.
  • FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a configuration diagram showing an elevator having an emergency braking device according to Embodiment 1 of the present invention
  • FIG. 2 is a configuration diagram showing an enlarged main part of FIG. 1, and FIG.
  • FIG. 4 is a cross-sectional view taken along a line IV-IV in FIG. 3.
  • a machine room 2 is provided above a hoistway 1.
  • a machine table 3 is installed in the machine room 2.
  • the machine stand 3 is equipped with a hoist 4 and a deflector 5.
  • a main rope 6 is wound around the drive sheave 4 a and the deflector wheel 5 of the hoisting machine 4.
  • a car 7 is suspended from one end of the main rope 6.
  • a counterweight 8 is suspended from the other end of the main rope 6.
  • An emergency brake device 9 is mounted on the machine base 3 to brake the drive sheave 4a and stop the car 7 when the car ⁇ rises at a speed higher than a preset speed.
  • the emergency brake device 9 is composed of a guide body 1 1, a guide body 1 facing the outer peripheral surface of the drive sheave 4a.
  • Roller 1 2 which can reciprocate along 1, plunger 13 connected to roller 12, solenoid coil 14 as a holding means surrounding plunger 13, and plunger 13 and solenoid coil 14 Spring as biasing means disposed between
  • the roller 12 is moved between a braking position (shown by two-dot chain line in FIG. 4) between the guide body 11 and the drive sheave 4a and a release position (solid line in FIG. 4) separated from the drive sheave 4a. Reciprocating between The spring 15 urges the roller 12 toward the braking position.
  • the solenoid coil 14 When energized, the solenoid coil 14 attracts the plunger 13 so as to hold the roller 12 at the release position against the spring 15. When the car 7 rises at a speed higher than a preset speed, the power supply to the solenoid coil 14 is cut off, and the suction to the plunger 13 is released.
  • FIG. 5 is a front view showing the rollers of FIG. 2
  • FIG. 6 is a side view showing the rollers of FIG. Roller
  • the outer peripheral surface of 12 is roughened to increase the coefficient of friction. As a result, a sufficient braking force against the drive sheave 4a is secured.
  • the traveling speed of the car 7 is constantly detected by, for example, an encoder (not shown) provided in the hoisting machine 4. If the traveling speed of the car 7 is normal, the roller 12 is held at the release position by the electromagnetic force of the solenoid coil 14.
  • the abnormal speed when ascending is different from that when falling, and is accelerated slowly due to the weight difference between the car 7 and the counterweight 8, and the like. For this reason, if the set speed is set lower, the car 7 can be stopped before the high speed is reached, so that the emergency braking device 9 of the early type can be used, and the structure is simple and compact. It can be made into a bird.
  • the emergency brake device 9 can also be operated when the car 7 has landed and stopped, thereby preventing the failure of the brake device (not shown) of the hoisting machine 4 during the arrival of the car 7! It is also possible to prevent the car 7 from rising due to the above.
  • the braking device of the hoisting machine 4 and the emergency braking device 9 form a double brake, the weight of the counterweight 8 is larger than that of the car 7 (normally, when there is no load in the car 7). The counterweight 8 is heavier), the emergency brake device 9 is operated, and the brake device of the hoisting machine 4 can be disassembled to perform maintenance work, thereby improving the workability of maintenance work. .
  • Embodiment 2
  • FIG. 7 is a sectional view of the emergency brake device according to the second embodiment of the present invention.
  • FIG. 8 is a sectional view taken along the line VIII-VIII in FIG.
  • a ring-shaped disk 16 is in frictional contact with the end surface of the drive sheave 4a.
  • the disk 16 is arranged coaxially with the drive sheave 4a and is rotated together with the drive sheave 4a.
  • the disk 16 is sandwiched between the ring-shaped holding plate 17 and the drive sheave 4a.
  • a plurality of bolts 18 penetrating the holding plate 17 are screwed to the end surface of the drive sheave 4a.
  • a spring 19 for pressing the disc 16 against the drive sheave 4a via the holding plate 17 is disposed between the head of each port 18 and the holding plate 1 ⁇ .
  • the frictional force between the disk 16 and the sheave 4a is adjusted by the amount of the bolt 18 tightened.
  • the emergency brake device 20 includes a guide body 11, a roller 12, a plunger 13, a solenoid 14, a spring 15, a disk 16, a holding plate 17, a bolt 18, and a spring 1.
  • Has 9 Other configurations are the same as those of the first embodiment.
  • C In such an emergency braking device 20, the roller 12 bites between the disk 16 and the guide body 11 during operation, and the disk 16 Is stopped immediately. However, since the disc 16 and the drive sheave 4a are in frictional contact, the drive sheave 4a is not stopped immediately, but receives a braking force according to the frictional force, and is decelerated to stop. .
  • the rollers 12 are arranged so as to stop the rotation of the drive sheave 4a in the direction in which the car 7 is rising, but in addition to this, the car 7 A brake device having rollers that stop the rotation of the drive sheave 4a in the direction of descending may be added.
  • Embodiments 1 and 2 a device for braking the rotation of the drive sheave 4a, which is a sheave, is provided. As shown, if the friction force between the sheave deflector wheel 5 and the main rope 6 is sufficiently high and braking of the deflector wheel 5 can stop the rise of the car 7, the deflector wheel 5 It is also possible to apply an emergency braking device.
  • the solenoid coil 14 is shown as the holding means.
  • a holding mechanism for mechanically holding and releasing the roller 12 at the release position may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un dispositif de frein d'urgence pour ascenseur. Ainsi, lorsque la cabine (7) s'élève à une vitesse supérieure à la vitesse préréglée, un galet (12) est retenu entre un corps de guidage (11) et une poulie (4a) de façon à freiner la rotation de la poulie (4a), le galet (12) étant alors inversé entre une position de freinage et une position de libération le long du corps de guidage (11), actionné par un dispositif d'actionnement (15) en direction de la position de freinage et, normalement, retenu en position de libération contre le dispositif d'actionnement (15) par le dispositif de retenue (14).
PCT/JP2000/009424 2000-12-28 2000-12-28 Dispositif de frein d'urgence pour ascenseur WO2002053485A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2002554611A JPWO2002053485A1 (ja) 2000-12-28 2000-12-28 エレベータの非常ブレーキ装置
PCT/JP2000/009424 WO2002053485A1 (fr) 2000-12-28 2000-12-28 Dispositif de frein d'urgence pour ascenseur
EP00985996A EP1352869A4 (fr) 2000-12-28 2000-12-28 Dispositif de frein d'urgence pour ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/009424 WO2002053485A1 (fr) 2000-12-28 2000-12-28 Dispositif de frein d'urgence pour ascenseur

Publications (1)

Publication Number Publication Date
WO2002053485A1 true WO2002053485A1 (fr) 2002-07-11

Family

ID=11736869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/009424 WO2002053485A1 (fr) 2000-12-28 2000-12-28 Dispositif de frein d'urgence pour ascenseur

Country Status (3)

Country Link
EP (1) EP1352869A4 (fr)
JP (1) JPWO2002053485A1 (fr)
WO (1) WO2002053485A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080248A1 (fr) * 2004-02-23 2005-09-01 Mitsubishi Denki Kabushiki Kaisha Dispositif de freinage d'urgence d'un elevateur
WO2006038284A1 (fr) * 2004-10-05 2006-04-13 Mitsubishi Denki Kabushiki Kaisha Frein de secours d'ascenseur
CN100408460C (zh) * 2004-07-22 2008-08-06 上海三菱电梯有限公司 电梯上行超速保护装置
WO2008146383A1 (fr) * 2007-05-31 2008-12-04 Mitsubishi Electric Corporation Frein pour treuil d'ascenseur
WO2009040913A1 (fr) * 2007-09-27 2009-04-02 Mitsubishi Electric Corporation Treuil d'ascenseur
JP2010029709A (ja) * 2009-11-10 2010-02-12 Toshiba Corp 寝台装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100844633B1 (ko) * 2006-09-06 2008-07-07 미쓰비시덴키 가부시키가이샤 엘리베이터의 비상 브레이크 장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333549A (en) * 1980-06-25 1982-06-08 Otis Elevator Company Car blocking apparatus
JPS59159675U (ja) * 1983-04-11 1984-10-26 三菱電機株式会社 エレベ−タ用非常止め装置
US4977982A (en) * 1989-12-26 1990-12-18 Otis Elevator Company Elevator sheave brake safety
JPH06199483A (ja) * 1993-01-07 1994-07-19 Mitsubishi Electric Corp エレベーター用制動装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1401014A (fr) * 1964-07-16 1965-05-28 Inventio Ag Limiteur de vitesse pour élévateurs
DE2802681C2 (de) * 1978-01-21 1981-11-26 Thyssen Aufzüge GmbH, 7303 Neuhausen Geschwindigkeitsbegrenzer
AT382848B (de) * 1983-12-16 1987-04-10 Kone Sowitsch Aktiengesellscha Geschwindigkeitsbegrenzer fuer mit einer fangvorrichtung versehene aufzuege
US5007505A (en) * 1990-03-19 1991-04-16 Northern Elevator Limited Elevator traction sheave brake
US5202539A (en) * 1991-08-28 1993-04-13 Inventio Ag Emergency brake apparatus for an elevator
US5617933A (en) * 1995-06-13 1997-04-08 Otis Elevator Company Bi-directional elevator governor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333549A (en) * 1980-06-25 1982-06-08 Otis Elevator Company Car blocking apparatus
JPS59159675U (ja) * 1983-04-11 1984-10-26 三菱電機株式会社 エレベ−タ用非常止め装置
US4977982A (en) * 1989-12-26 1990-12-18 Otis Elevator Company Elevator sheave brake safety
JPH06199483A (ja) * 1993-01-07 1994-07-19 Mitsubishi Electric Corp エレベーター用制動装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1352869A4 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080248A1 (fr) * 2004-02-23 2005-09-01 Mitsubishi Denki Kabushiki Kaisha Dispositif de freinage d'urgence d'un elevateur
CN100447068C (zh) * 2004-02-23 2008-12-31 三菱电机株式会社 电梯的紧急制动装置
CN100408460C (zh) * 2004-07-22 2008-08-06 上海三菱电梯有限公司 电梯上行超速保护装置
US8006806B2 (en) 2004-10-05 2011-08-30 Mitsubishi Electric Corporation Emergency brake of elevator
JPWO2006038284A1 (ja) * 2004-10-05 2008-05-15 三菱電機株式会社 エレベータの非常ブレーキ装置
US7607518B2 (en) 2004-10-05 2009-10-27 Mitsubishi Electric Corporation Emergency brake of elevator
WO2006038284A1 (fr) * 2004-10-05 2006-04-13 Mitsubishi Denki Kabushiki Kaisha Frein de secours d'ascenseur
WO2008146383A1 (fr) * 2007-05-31 2008-12-04 Mitsubishi Electric Corporation Frein pour treuil d'ascenseur
JP5088370B2 (ja) * 2007-05-31 2012-12-05 三菱電機株式会社 エレベータ用巻上機のブレーキ装置
WO2009040913A1 (fr) * 2007-09-27 2009-04-02 Mitsubishi Electric Corporation Treuil d'ascenseur
CN101808927B (zh) * 2007-09-27 2012-09-26 三菱电机株式会社 电梯曳引机
JP5084838B2 (ja) * 2007-09-27 2012-11-28 三菱電機株式会社 エレベータ巻上機
JP2010029709A (ja) * 2009-11-10 2010-02-12 Toshiba Corp 寝台装置

Also Published As

Publication number Publication date
EP1352869A1 (fr) 2003-10-15
JPWO2002053485A1 (ja) 2004-04-30
EP1352869A4 (fr) 2009-12-30

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