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WO2003045828A1 - Frein d'urgence pour ascenseur - Google Patents

Frein d'urgence pour ascenseur Download PDF

Info

Publication number
WO2003045828A1
WO2003045828A1 PCT/JP2001/010325 JP0110325W WO03045828A1 WO 2003045828 A1 WO2003045828 A1 WO 2003045828A1 JP 0110325 W JP0110325 W JP 0110325W WO 03045828 A1 WO03045828 A1 WO 03045828A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide rail
cab
lever
elevator
emergency stop
Prior art date
Application number
PCT/JP2001/010325
Other languages
English (en)
Japanese (ja)
Inventor
Yasushi Chadani
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 CNB01823075XA priority Critical patent/CN1297466C/zh
Priority to JP2002589150A priority patent/JP4019941B2/ja
Priority to KR1020037012592A priority patent/KR100620436B1/ko
Priority to EP01274836.4A priority patent/EP1449800B1/fr
Priority to PCT/JP2001/010325 priority patent/WO2003045828A1/fr
Publication of WO2003045828A1 publication Critical patent/WO2003045828A1/fr

Links

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
    • 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 present invention relates to a durable safety device that can easily stop even when the speed is increased in the upward direction.
  • the conventional safety device 20 is attached to a lower part of a cab guided by a guide rail 21 in a hoistway.
  • the speed of the cab is detected by the governor via the governor rope 22 provided in the hoistway, and this speed data is transmitted to the emergency stop device 23 connected to the governor rope 22.
  • the emergency stop device 23 raises the lever 24 when the speed data exceeds a predetermined speed.
  • the square 25 provided at the end of the lever 24 is pushed upward, and the clamp 26 and the guide rail 21 provided on both sides of the guide rail 21 are connected to each other. Ko ⁇ 25 is sandwiched between them.
  • the conventional emergency stop device 20 functions only when the cab speeds up in the downward direction, so that when the cab speeds up, the cab can be emergency stopped. Did not. Therefore, as an emergency stop device effective for increasing the speed of the cab in both the upper and lower directions, the one shown in Japanese Patent No. 269876.5 is proposed.
  • the emergency stop device 30 disclosed in Japanese Patent No. 26987665 has a pair of ⁇ edges 31 and 32 for stopping the cab, and the cab is positioned below.
  • the edge 31 slides upward, and the edge 31 bites between the guide rail 33 and the frame 34, so that the cab stops emergency.
  • the edge 32 slides downward, and the page 32 bites between the guide rail 33 and the frame 35, thereby causing the cage to move. The room shuts down.
  • the conventional safety gear 30 has a problem in durability because of its complicated structure.
  • the emergency stop device is not used during normal operation of the elevator, there is a risk that dust may adhere to the drive part of the emergency stop device, causing the movement to become poor. Therefore, there is a need for a safety device that has a simple structure and operates reliably in an emergency.
  • An object of the present invention is to solve such a problem and to provide an emergency stop device for an elevator that is excellent in durability. Disclosure of the invention
  • the elevator emergency stop device of the present invention is provided in a cab of an elevator to stop the cab by pressing a guide rail for guiding the cab. It is equipped with a roller rolling mechanism that presses the guide rail when moving in any direction exceeding a predetermined speed.
  • the elevator emergency stop device of the present invention is provided in an elevator cab, and presses a guide rail for guiding the cab to stop the cab.
  • the gap between the guide rail and the rotating shaft is larger than the minor axis and smaller than the major axis.
  • the guide port extends in the direction of the guide rail while the cab moves within the specified speed.
  • a lever that rotates the rollers and presses the guide rails with the opening when the cab moves beyond a predetermined speed. I do.
  • a long hole formed at the tip of the lever and extending in the longitudinal direction of the lever, a pin provided at the peripheral portion on the short diameter of the opening and slidably inserted into the long hole, and a car;
  • the guide rail and the retainer provided with a holding groove for accommodating the roller are further provided. It is characterized by being narrower than the sum of and the major diameter of the mouth.
  • the side wall of the housing groove is inclined in the vertical direction. Further, it is characterized in that it is provided with an inclined plate which is exchangeably attached to the side wall of the accommodation groove and which is inclined in the vertical direction.
  • FIG. 1 is a front view showing a cab provided with the safety device according to the present embodiment.
  • FIG. 2 is a front view showing the safety device according to the present embodiment.
  • FIG. 3 is a cross-sectional view of the safety device according to the present embodiment cut along line A_A. FIG. It is.
  • Figure 5 shows the operation of the safety gear when the cab speeds up.
  • FIG. 6 is a partially enlarged view showing a modification in which the right side wall of the accommodation groove provided in the gripper is vertically inclined.
  • FIG. 7 is a partially enlarged view showing a modification in which the shape of the opening is partially deformed.
  • FIG. 8 is a partially enlarged view showing a modification in which an inclined plate inclined in the vertical direction is replaceably attached to the right side wall of the gripper.
  • FIG. 9 is a front view showing a conventional safety device.
  • FIG. 10 is a front view showing a conventional safety device.
  • FIG. 11 is a front view showing a conventional safety device. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a front view showing a cab 1 provided with an emergency stop device 10 according to an embodiment of the present invention.
  • the emergency stop device 10 is attached to the lower part of the cab 1 guided by the guide rail 2 in the hoistway. Functions to stop cab 1 by pressing.
  • FIG. 2 is a front view showing the safety device 10 of the present embodiment
  • FIG. 3 is a cross-sectional view of the safety device 10 of the present embodiment, taken along line AA.
  • 11 is a frame attached to the lower part of the cab 1, 12 is attached to the center of the frame 11, and accommodates the guide rail 2 in the receiving groove 12a 13 is a lever that is rotatably fixed to the side of the frame 11, 14 is attached to the lever 13, — Governor rope that swings the tip of 13 up and down, 15 is rotatably fixed to the ring 12 by the rotating shaft 15 a, and the guide rail 2 is attached to the holding wall 12 a of the ring 12
  • the stored oval-shaped mouth, 16 is formed at the tip of Reno 13, a long hole extending in the longitudinal direction of lever 13, 17 is protruding from the peripheral edge of the roller 15 on the short side
  • the pin is provided and slidably inserted into the long hole 16.
  • the square 15 has an elliptical shape in which the distance between the guide rail 2 and the rotating shaft 15a is wider than the minor axis and narrower than the major axis. For this reason, when the opening 15 is arranged so that the extending direction of the guide rail 2 is parallel to the major axis direction of the opening 15, a predetermined distance is provided between the roller 15 and the guide rail 2. An interval is formed. When the guide rail 2 is extended so that the extending direction of the guide rail 2 is parallel to the minor axis direction of the opening 15, the roller 15 comes into contact with the guide rail 2.
  • the groove width of the accommodation groove 12a is wider than the sum of the width of the guide rail 2 and the minor axis of the square 15 and narrower than the sum of the width of the guide rail 2 and the major axis of the square hole 15. Has been adjusted as follows.
  • a governor (not shown) detects an increase in speed of cab 1 and Same speed Grab the governor rope 14 that is being pulled downwards by degrees.
  • the lever 13 fixed to the governor rope 14 is pulled up and inserted into the long hole 16 at the end of the lever 13 as shown in Fig. 4.
  • Pin 17 is pushed upward. Since the pin 17 is fixed to the square 15, the roller 15 rotates clockwise around the rotation axis 15 a.
  • the opening 15 is not circular but long in the vertical direction. Therefore, the opening 15 is sandwiched between the jaws 12 and the guide rail 2, and the square 15 bites into (presses) the jaws 12 and the guide rail 2, thereby causing the car room 1 to be in an emergency. Stop.
  • a governor (not shown) detects an increase in the speed of cab 1 and Grab the governor rope 14 that is being pulled upward at the same speed.
  • the lever 13 fixed to the governor rope 14 is pulled down and inserted into the long hole 16 at the tip of the lever 13 as shown in FIG.
  • the pressed pin 17 is pushed down. Since the pin 17 is fixed to the roller 15, the roller 15 rotates counterclockwise in the figure around the rotation axis 15 a. For this reason, the mouth 15 is sandwiched between the jaws 12 and the guide rails 2, and the jaw 15 bites into (presses) the jaws 12 and the guide rails 2, thereby causing the cabin 1 to be in an emergency. Stop.
  • the elliptical square 15 is rotated by the vertical movement of the lever 13 so that the roller 15 bites into the guide rail 2.
  • the cab 1 With a very simple configuration such as (pressing), the cab 1 can be surely stopped in an emergency even if the speed is increased in either direction. For this reason, durability and reliability are greatly improved as compared with the conventional safety gear.
  • FIG. 6 is a partially enlarged view showing an example in which the right side wall 40 of the accommodation groove 12 a provided in the gripper 12 is vertically inclined.
  • the lower half of the right side wall 40 is inclined so that the groove width of the accommodation groove 12a gradually increases.
  • the ⁇ 15 rotates clockwise in the figure, and the ⁇ 15 enters the upper half of the right side wall 40.
  • the amount of penetration is smaller when the square 15 rotates counterclockwise in the figure according to the upward speed increase of the room 1 and the square 15 cuts into the lower half of the right side wall 40.
  • the static force when cab 1 accelerates upward is smaller than the static force when cab 1 accelerates downward.
  • FIG. 7 is a partial view showing an example in which the shape of the roller 41 is partially deformed. It is an enlarged view. As shown in the figure, the upper right side portion 41 a of the roller 41 is cut off, so that the opening 41 rotates clockwise in the figure according to the downward acceleration of the cab 1.
  • FIG 8 is a partially enlarged view showing an example in which an inclined plate 42 inclined in the vertical direction is replaceably attached to the right side wall 40 of the gripper 12.
  • the lower half of the inclined plate 4 2 is inclined so that the groove width gradually widens, so that the square ⁇ 15 moves clockwise in the figure according to the speed increase in the lower direction of the cab 1.
  • the opening 15 turns counterclockwise in the figure to match the speed increase in the cab 1 as compared to the case where However, the amount of penetration is smaller when the square 15 penetrates into the lower half of the inclined plate 4 2. Therefore, the static force when cab 1 accelerates upward is smaller than the static force when cab 1 accelerates downward.
  • the lower half of the inclined plate 42 is inclined so that the groove width gradually increases.
  • the upper half of the inclined plate 42 is inclined so that the groove width gradually decreases. Is also good. In this case, the same effect as in the third modification is obtained. It is. Industrial applicability
  • the present invention can provide an elevator emergency stop device having a simple structure that can easily stop the cab even when the speed is increased in the upward direction. Suitable for elevators that require durability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

L'invention porte sur un frein d'urgence pour ascenseur monté sur la cabine (1) et l'arrêtant en enserrant l'un de ses rails de guidage (2). A cet effet on utilise: un rouleau elliptique (15) monté à proximité du rail (2) de manière à ce que l'espace entre le rail (2) et son axe de rotation (15a) soit supérieur au petit diamètre de l'ellipse, mais inférieur à son grand diamètre, et un levier (13) maintenant le grand diamètre du rouleau sensiblement parallèle au rail (2) lorsque la vitesse de la cabine reste dans des limites précises, et faisant tourner le rouleau (15) pour coincer le rail (2) lorsque la cabine (1) dépasse ces limites.
PCT/JP2001/010325 2001-11-27 2001-11-27 Frein d'urgence pour ascenseur WO2003045828A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CNB01823075XA CN1297466C (zh) 2001-11-27 2001-11-27 电梯的紧急制动装置
JP2002589150A JP4019941B2 (ja) 2001-11-27 2001-11-27 エレベータの非常止め装置
KR1020037012592A KR100620436B1 (ko) 2001-11-27 2001-11-27 엘리베이터의 비상정지장치
EP01274836.4A EP1449800B1 (fr) 2001-11-27 2001-11-27 Frein d'urgence pour ascenseur
PCT/JP2001/010325 WO2003045828A1 (fr) 2001-11-27 2001-11-27 Frein d'urgence pour ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/010325 WO2003045828A1 (fr) 2001-11-27 2001-11-27 Frein d'urgence pour ascenseur

Publications (1)

Publication Number Publication Date
WO2003045828A1 true WO2003045828A1 (fr) 2003-06-05

Family

ID=11737975

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/010325 WO2003045828A1 (fr) 2001-11-27 2001-11-27 Frein d'urgence pour ascenseur

Country Status (5)

Country Link
EP (1) EP1449800B1 (fr)
JP (1) JP4019941B2 (fr)
KR (1) KR100620436B1 (fr)
CN (1) CN1297466C (fr)
WO (1) WO2003045828A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007131388A (ja) * 2005-11-09 2007-05-31 Chiyuuritsu Denki Kk 昇降装置用落下防止装置
WO2008155853A1 (fr) * 2007-06-21 2008-12-24 Mitsubishi Electric Corporation Dispositif de sécurité pour ascenseur et procédé de détection de glissement de câble
KR101036020B1 (ko) 2011-01-14 2011-05-23 세계실업(주) 산업용 리프트의 추락방지장치

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0601926B1 (pt) * 2005-06-17 2018-06-12 Inventio Aktiengesellschaft Dispositivo de pára-quedas do freio
CN105947832B (zh) * 2016-06-28 2017-12-19 爱默生电梯有限公司 一种用于别墅电梯的瞬时式安全钳
CN105883523B (zh) * 2016-06-28 2017-12-19 爱默生电梯有限公司 一种别墅电梯用瞬时式安全钳

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1368974A (en) * 1971-11-26 1974-10-02 Ace Machinery Ltd Brakes for materials hoists
JPS6422788A (en) * 1987-07-20 1989-01-25 Mitsubishi Electric Corp Elevator
US6176350B1 (en) * 1997-08-21 2001-01-23 Autzugstechnologie Schlosser Gmbh Progressive safety gear

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422854A1 (de) * 1984-06-20 1986-01-02 F. Zimmermann GmbH, 7306 Denkendorf Sicherheitseinrichtung fuer eine maschine
JPH0522857U (ja) * 1991-09-06 1993-03-26 石川島播磨重工業株式会社 スプライン継手
ATE170822T1 (de) * 1993-08-24 1998-09-15 Garaventa Holding Ag Fang- und blockiereinrichtung für einen auf laufschienen geführten laufwagen eines schräg- oder senkrechtaufzugs
US5713434A (en) * 1995-07-07 1998-02-03 Otis Elevator Company Elevator safety system
DE19606861C2 (de) * 1996-02-23 1999-02-04 Gerhard Schlosser Bremsfangvorrichtung für Aufzüge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1368974A (en) * 1971-11-26 1974-10-02 Ace Machinery Ltd Brakes for materials hoists
JPS6422788A (en) * 1987-07-20 1989-01-25 Mitsubishi Electric Corp Elevator
US6176350B1 (en) * 1997-08-21 2001-01-23 Autzugstechnologie Schlosser Gmbh Progressive safety gear

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007131388A (ja) * 2005-11-09 2007-05-31 Chiyuuritsu Denki Kk 昇降装置用落下防止装置
WO2008155853A1 (fr) * 2007-06-21 2008-12-24 Mitsubishi Electric Corporation Dispositif de sécurité pour ascenseur et procédé de détection de glissement de câble
US8261886B2 (en) 2007-06-21 2012-09-11 Mitsubishi Electric Corporation Safety device for elevator and rope slip detection method
US8297413B2 (en) 2007-06-21 2012-10-30 Mitsubishi Electric Corporation Safety device for elevator and rope slip detection method using drive sheave acceleration
US8336677B2 (en) 2007-06-21 2012-12-25 Mitsubishi Electric Corporation Safety device for elevator and rope slip detection method
KR101036020B1 (ko) 2011-01-14 2011-05-23 세계실업(주) 산업용 리프트의 추락방지장치

Also Published As

Publication number Publication date
CN1494512A (zh) 2004-05-05
JPWO2003045828A1 (ja) 2005-04-07
KR100620436B1 (ko) 2006-09-12
CN1297466C (zh) 2007-01-31
EP1449800A4 (fr) 2010-06-23
EP1449800A1 (fr) 2004-08-25
KR20030089705A (ko) 2003-11-22
JP4019941B2 (ja) 2007-12-12
EP1449800B1 (fr) 2017-10-25

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