WO2017064745A1 - エレベータ装置 - Google Patents
エレベータ装置 Download PDFInfo
- Publication number
- WO2017064745A1 WO2017064745A1 PCT/JP2015/078870 JP2015078870W WO2017064745A1 WO 2017064745 A1 WO2017064745 A1 WO 2017064745A1 JP 2015078870 W JP2015078870 W JP 2015078870W WO 2017064745 A1 WO2017064745 A1 WO 2017064745A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flyweight
- ratchet wheel
- elevator apparatus
- inertial mass
- ratchet
- Prior art date
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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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
- B66B5/046—Mechanical overspeed governors of the pendulum or rocker arm type
-
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
-
- 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
- B66B5/26—Positively-acting devices, e.g. latches, knives
Definitions
- the present invention relates to an elevator apparatus, and more particularly to an elevator apparatus having a governor device for operating an emergency stop device.
- an elevator apparatus when the elevator lifting / lowering speed reaches a first set value, the elevator hoisting apparatus is electrically stopped, and the lowering speed of the car reaches a second set value.
- a governor device is provided that operates the emergency stop device to mechanically stop the car.
- Patent Document 1 discloses a ratchet type governor device.
- This governor device mainly consists of a ratchet wheel and two flyweights, and the flyweight that rotates together with the sheave around which the rope is wound moves so as to open outward by centrifugal force (hereinafter referred to as “flying”). Then, it is comprised so that the nail
- the flyweight claw engages with the ratchet teeth of the ratchet wheel, the ratchet wheel is rotated by the sheave, and the brake shoe driven by the rotation of the ratchet wheel applies braking force to the governor rope between the sheave and the emergency stop device. It is what makes it work.
- a flyweight is disposed on the outer periphery of a ratchet wheel, and a claw is attached to the tip of the flyweight. And it is a structure which rotates a ratchet wheel by the nail
- the governor device has been miniaturized, the ratchet wheel having a small diameter is used, and the inertial mass of the ratchet hole tends to be small.
- the inertial mass of the ratchet wheel is smaller than the inertial mass of the flyweight, when the ratchet wheel of the ratchet wheel collides with the nail of the flyweight due to the flyweight, the ratchet wheel The phenomenon that is played.
- An object of the present invention is to provide an elevator apparatus equipped with a novel governor apparatus capable of reliably engaging the ratchet teeth of the ratchet wheel and the claw portion of the flyweight.
- a feature of the present invention is that a claw portion that meshes with a ratchet wheel of a ratchet wheel is attached to one side of the flyweight with a weight support shaft that rotatably supports the flyweight as a flyweight to open the flyweight,
- An inertia mass adjusting portion having a shape for adjusting the inertia mass of the fly weight to be equal to or smaller than the inertia mass of the ratchet wheel is provided on the other region side of the fly weight.
- the ratchet teeth of the ratchet wheel and the claws of the flyweight can be reliably engaged. Become. As a result, the adverse effect of delaying the operation of the emergency stop device can be eliminated.
- FIG. 1 shows a governor device 10 to which the present invention is applied.
- the governor device 10 includes a frame 12 placed on a governor base 11, and a sheave 14 is rotatably supported via a sheave shaft 13 inside the frame 12.
- a governor rope 15 is wound around the sheave 14, and the governor rope 15 travels integrally with the elevator car, and the sheave 14 rotates around the sheave shaft 13 by the travel.
- a ratchet wheel 16 is provided on one side of the sheave 14.
- the ratchet wheel 16 is supported by the sheave shaft 13 and can rotate about the sheave shaft 13 separately from the sheave 14.
- a plurality of ratchet teeth 17 are formed at equal angles on the outer periphery of the ratchet wheel 16, and the ratchet teeth 17 are inclined in the rotational direction. This allows the ratchet wheel 16 to rotate in one direction.
- flyweights 18A and 18B are provided on the same side of the sheave 14 where the ratchet wheel 16 is disposed.
- the flyweights 18A and 18B are disposed so as to face each other substantially symmetrically with the ratchet wheel 16 therebetween, and are respectively rotatably attached to the side surfaces of the sheave 14 via weight support shafts (not shown). Yes.
- fly weight 18A and 18B are provided with a claw portion (ratchet) 28 that can mesh with the ratchet teeth 17 of the ratchet wheel 16.
- the flyweights 18A and 18B and the ratchet wheel 16 will be described in detail with reference to FIG.
- the ratchet wheel 16 is connected to the brake mechanism 19.
- the brake mechanism 19 includes a brake arm 20, and one end of the brake arm 20 is rotatably attached to the frame 12 via a pin 21.
- a connecting rod 22 is inserted into the other end portion of the brake arm 20, and one end portion of the connecting rod 22 is rotatably connected to one side surface of the ratchet wheel 16 via a pin (not shown).
- a brake spring 23 is provided between the other end of the connecting rod 22 and the brake arm 20, and a brake shoe 24 is attached to an intermediate part of the brake arm 20.
- the brake shoe 24 is disposed so as to face the governor rope 15 wound around the sheave 14.
- a car stop switch 25 for generating a switch signal for operating a braking mechanism of a hoisting device (not shown) is attached.
- the car stop switch 25 is formed at the tip of the flyweights 18A and 18B opposite to the claw portions when the car ascending / descending speed reaches a first set value, for example, 1.3 times the rated speed.
- the switch mechanism of the car stop switch 25 is configured to be operated by the projected portion.
- the brake mechanism 19 operated by the ratchet wheel 16 has a governor rope when the fly weights 18A and 18B detect that the lowering speed of the car has reached a second set value, for example, 1.4 times the rated speed. A braking force is applied to 15 and the emergency stop device is operated to stop the car.
- the governor rope 15 travels integrally with the car when the elevator apparatus is in operation, and the sheave 14 rotates around the sheave shaft 13 in this travel. At this time, the ratchet wheel 16 is not rotating.
- the sheave 14 rotates counterclockwise.
- the rotational speed of the sheave 14 increases, and the flyweights 18A and 18B rotate about the weight support shaft by the centrifugal force and fly outward.
- the claw portion 28 of one flyweight 18A meshes with the ratchet teeth 17 of the ratchet wheel 16, whereby the ratchet wheel 16 rotates integrally with the sheave 14 around the sheave shaft 13 in the counterclockwise direction.
- the rotation operation of the ratchet wheel 16 is transmitted to the brake mechanism 19 via the connecting rod 22, and the brake mechanism 19 is operated by the transmission, and the governor rope 15 wound around the sheave 14 is pressed against the sheave 14, and the governor rope 15 Is stopped. Then, when the governor rope 15 is stopped, the emergency stop device for the descending car is operated, braking force is applied to the car, and the descending of the car is stopped, thereby ensuring safety.
- the ratchet teeth 17 and the flyweight 18A of the ratchet wheel 16 are caused by the flyweight 18A being opened.
- the claw portion 28 of the vehicle collides, a phenomenon occurs in which the ratchet wheel 16 is bounced by the claw portion 28 of the flyweight 18A.
- the ratchet teeth 17 of the ratchet wheel 16 and the claw portions 28 of the flyweight 18A cannot be satisfactorily engaged with each other, resulting in an adverse effect that the operation of the emergency stop device is delayed.
- a support base 26 integrally connected to the sheave 14 is rotatably supported by the sheave shaft 13, and a portion of the support base 26 located outside the ratchet wheel 16 (not shown) is supported.
- Weight support shafts 27A and 27B are planted and provided on the surface.
- the flyweights 18A and 18B are formed in substantially the same shape and are rotatably supported by the weight support shafts 27A and 27B at predetermined positions, respectively.
- the flyweight 18B has almost the same configuration and performs the same operation.
- the region SA having a short arm length includes a claw portion attaching portion for attaching the claw portion 28, and the region LA having a long arm length includes an inertial mass adjusting unit that reduces the inertial mass of the flyweight 18A. This inertial mass adjusting unit will be described later.
- the claw portion 28 is not attached to the area SA where the arm length of the other flyweight 18B is short, and a protrusion 29B that operates the car stop switch 5 is provided at the end of the area LA where the arm length is long. Is provided. Therefore, either one of the protrusions 29A and 29B can actuate the car stop switch 5.
- the intermediate portion of the region LA having a long arm length on the flyweight 18A side and the intermediate portion of the region SA having a short arm length on the flyweight 18B side are connected to the connecting member 31 by pins 30A and 30B.
- the connecting member 31 performs a function of interlocking the movement of the flyweight 18A and the flyweight 18B.
- an end portion of the flyweight 18A having a short arm length and an end portion formed in the vicinity of the center of the support base 26 are provided with a spring member 32 having an adjustment function, and the claw portion 28 of the flyweight 18A is engaged. Adjustments.
- the claw portion 28 of the flyweight 18A is located away from the ratchet wheel 16, and the ratchet teeth 17 and the claw portion 28 are not engaged with each other.
- the flyweights 18A and 18B receive a centrifugal force and center on the weight support shafts 27A and 27B.
- the region LA having a long arm length jumps outward and moves, whereas the region SA having a short arm length moves inward.
- the protrusions 29A and 29B of the flyweights 18A and 18B rotate in a direction away from the ratchet wheel 16.
- the protrusions 29A and 29B protrude outward from the normal state, and one of the protrusions 29A and 29B operates the car cage stop switch 5 shown in FIG.
- the flyweights 18A and 18B receive a larger centrifugal force and are centered on the weight support shafts 27A and 27B.
- the region LA with a long arm length jumps further outward and moves, whereas the region SA with a short arm length moves inward.
- the claw portion 28 provided at the end of the area SA where the arm length of the flyweight 18A is short meshes with the ratchet teeth 17 of the ratchet wheel 163, and the ratchet wheel 16 is synchronized with the flyweights 18A, 18B and the sheave 14. Then, the brake mechanism 19 is operated by rotating counterclockwise.
- the claw portion extends from the center of the weight support shaft 27A of the fly weight 18A.
- the distance a to the 28 meshing portions must be shortened.
- the inertia mass adjusting portion 33A is formed in the region LA having a long arm length with the weight support shaft 27A of the flyweight 18A as a boundary, and the inertia mass of this portion is formed. Is trying to reduce.
- the inertial mass adjusting part 33A is provided with a thin area part 34A and a through hole part 35A.
- an inertial mass adjusting portion 33A is formed in a part of the region LA having a long arm length.
- the thickness of the inertial mass adjusting unit 33A is smaller than the thickness of the region LA having a long arm length and the region SA having a short arm length other than the inertial mass adjusting unit 33A. For this reason, the mass is reduced by the thinned area 34A.
- a through hole 35A is formed in the thin region 34A, and the mass is further reduced by the amount of the through hole 35A.
- Such thin region 34A and through hole 35A are formed as adjustment shapes for adjusting the inertial mass of flyweight 18A to be small.
- the inertial mass adjusting portion 33A is formed in a part of the region LA having a long arm length, the inertia moment of the flyweight 18A can be reduced, and the protrusion 29A from the center of the weight support shaft 27A.
- the inertia mass of the flyweight 18A can be reduced even if the distance b is increased and the distance a from the center of the weight support shaft 27A to the meshing portion of the claw portion 28 is shortened.
- the mass reduced by the inertial mass adjusting unit 33A is determined so that the inertial mass of the flyweight 18A is equal to or smaller than the inertial mass of the ratchet wheel 16.
- the inertia mass of the flyweight 18A is determined to be smaller than the inertia mass of the ratchet wheel 16.
- an inertial mass adjusting portion 33B is also formed in a part of the region LA where the arm length of the flyweight 18B is long. Thereby, the balance of the inertial mass with the flyweight 18A can be achieved.
- Thin portion 34B and through hole 35B are formed in inertial mass adjusting portion 33B, and flyweight 18A and flyweight 18B have substantially the same shape. However, since the claw portion 28 is not attached to the flyweight 18B, the flyweight 18A and the flyweight 18B are not exactly the same shape.
- the inertial mass adjusting parts 33A and 33B including the thin area parts 34A and 34B and the through holes 35A and 35B are not exactly the same shape.
- the flyweight 18A and the flyweight 18B only have to be similar in shape because they only need to balance the inertial mass.
- the inertial mass of the flyweight 18A is made smaller than the inertial mass of the ratchet wheel, the ratchet teeth 17 of the ratchet wheel 16 and the claw portion 28 of the flyweight 18A are moved by the flyweight 18A. Even when a collision occurs, it is possible to suppress the phenomenon that the ratchet wheel 16 is bounced by the claw portion 28 of the flyweight 18A.
- the ratchet wheel of the ratchet wheel and the flyweight claw can be satisfactorily engaged with each other, and the adverse effect of delaying the operation of the emergency stop device is prevented.
- the thicknesses of the thin area portions 34A and 34B of the inertial mass adjusting parts 33A and 33B are approximately the thickness of the long area LA and the short arm length SA other than the inertial mass adjusting parts 33A and 33B. It has been confirmed by the inventors that the inertial mass can be sufficiently reduced if it is 2/3 or less.
- the thickness of the thin area portions 34A, 34B of the inertial mass adjustment units 33A, 33B is the same between the long area LA and the short arm length SA other than the inertial mass adjustment parts 33A, 33B. It is determined to be about 1 ⁇ 2 of the thickness.
- the arm length of the area SA where the arm length is short as in this embodiment. It is advantageous to increase the thickness.
- a large force from the sheave 14 does not act on the region LA having a long arm length, there is no problem even if the thickness is reduced in order to reduce the inertial mass.
- the diameter of the through-hole 35A of the inertial mass adjusting part 33A can be sufficiently reduced if the diameter is about 13 mm or more.
- the shape of the through hole 35A is circular, even a polygonal shape or an elliptical shape other than the circular shape can be applied as the through hole 35A. Furthermore, it may be a shape such as a recessed portion with a bottom instead of a through hole.
- the inertial mass adjusting portion 33A is formed at the tip side from at least the portion where the pin 30A for connecting the connecting member 31 to the flyweight 18A is provided.
- the mounting surface of the connecting member 31 can be made the same height by the flyweights 18A and 18B. If the inertia weight adjusting unit 33A, which is a thin flyweight 18A, is provided with a pin 30A, the flyweight 18B side is a region SA with a thick arm and a short arm length. This is because the mounting form is disadvantageous.
- the inertial mass adjusting portion 33A is composed of the thin region portion 34A and the through hole portion 35A. However, only one of the thin region portion 34A or the through hole portion 35A may be formed. Needless to say.
- the present invention attaches a claw portion that meshes with the ratchet teeth of the ratchet wheel on one side of the flyweight, with the weight support shaft that rotatably supports the flyweight being used to open the flyweight.
- an inertia mass adjusting unit having a shape for adjusting the inertial mass of the flyweight to be equal to or smaller than the inertial mass of the ratchet wheel is provided on the other region side of the flyweight.
- the inertial mass of the flyweight equal to or smaller than the inertial mass of the ratchet wheel, the ratchet teeth of the ratchet wheel and the claws of the flyweight can be reliably engaged. As a result, the adverse effect of delaying the operation of the emergency stop device can be eliminated.
- this invention is not limited to the above-mentioned Example, Various modifications are included.
- the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
- a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Emergency Lowering Means (AREA)
Abstract
Description
Claims (7)
- ガバナロープが巻き掛けられ、前記ガバナロープが乗りかごの昇降に応じて移動することによって回転されるシーブと、前記シーブの回転軸に回転可能に支持され外周部に複数のラチェット歯を有したラチェットホイールと、前記ラチェットホイールの外周に配置され、前記シーブの回転による遠心力で回動するフライウエイトと、前記フライウエイトの端部に取り付けられ、前記ラチェットホイールの前記ラチェット歯と係脱可能に噛み合う爪部と、前記ラチェットホイールと連結され、前記乗りかごが定格の速度を超えて下降すると前記フライウエイトの前記爪部が前記ラチェットホイールの前記ラチェット歯に係合されて前記ガバナロープに制動力を作用させるブレーキ機構とを有するガバナ装置を備えたエレベータ装置において、
前記フライウエイトは前記シーブと一体的に回転するウエイト支持軸に回転可能に支持されており、前記ウエイト支持軸を境として、前記フライウエイトの一方領域側に、前記ラチェットホイールの前記ラチェット歯と噛み合う前記爪部を取り付けると共に、前記フライウエイトの他方領域側に、前記フライウエイトの慣性質量を前記ラチェットホイールの慣性質量と同等、或いはこれより小さく調整するための形状を有する慣性質量調整部を備えることを特徴とするエレベータ装置。 - 請求項1に記載のエレベータ装置において、
前記慣性質量調整部は、前記フライウエイトの前記一方領域側の厚さより薄い薄肉領域部、或いは貫通孔、或いは前記薄肉領域部と前記貫通孔によって形成されていることを特徴とするエレベータ装置。 - 請求項2に記載のエレベータ装置において、
前記薄肉領域部は、前記フライウエイトの前記一方領域側の厚さに対して、約2/3以下の厚さに形成されていることを特徴とするエレベータ装置。 - 請求項2に記載のエレベータ装置において、
前記貫通孔は、直径が13mm以上の円形の貫通孔であることを特徴とするエレベータ装置。 - 請求項1に記載のエレベータ装置において、
前記フライウエイトは、前記ラチェットホイールを隔てて向き合うようにして配置された第1のフライウエイトと第2のフライウエイトとからなり、前記第1のフライウエイトと前記第2のフライウエイトの両方に前記慣性質量調整部が形成されていることを特徴とするエレベータ装置。 - 請求項5に記載のエレベータ装置において、
前記第1のフライウエイトと前記第2のフライウエイトの内で、前記第2のフライウエイトにだけ前記爪部が取り付けられていることを特徴とするエレベータ装置。 - 請求項5に記載のエレベータ装置において、
前記第1のフライウエイトと前記第2のフライウエイトは連結部材によって連結されており、前記連結部材は、前記第1のフライウエイトの前記一方領域に設けられたピンと、前記第2のフライウエイトの前記慣性質量調整部以外の前記他方領域に設けられたピンとを連結することを特徴とするエレベータ装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15906210.8A EP3363759B1 (en) | 2015-10-13 | 2015-10-13 | Elevator device |
PCT/JP2015/078870 WO2017064745A1 (ja) | 2015-10-13 | 2015-10-13 | エレベータ装置 |
JP2017545013A JP6518336B2 (ja) | 2015-10-13 | 2015-10-13 | エレベータ装置 |
CN201580083717.XA CN108137271B (zh) | 2015-10-13 | 2015-10-13 | 电梯设备 |
KR1020187010100A KR20180051605A (ko) | 2015-10-13 | 2015-10-13 | 엘리베이터 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2015/078870 WO2017064745A1 (ja) | 2015-10-13 | 2015-10-13 | エレベータ装置 |
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WO2017064745A1 true WO2017064745A1 (ja) | 2017-04-20 |
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PCT/JP2015/078870 WO2017064745A1 (ja) | 2015-10-13 | 2015-10-13 | エレベータ装置 |
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EP (1) | EP3363759B1 (ja) |
JP (1) | JP6518336B2 (ja) |
KR (1) | KR20180051605A (ja) |
CN (1) | CN108137271B (ja) |
WO (1) | WO2017064745A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11414298B2 (en) | 2017-10-30 | 2022-08-16 | Otis Elevator Company | Governor assembly and elevator system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001080838A (ja) * | 1999-09-10 | 2001-03-27 | Toshiba Corp | エレベータの調速機 |
JP2002020056A (ja) * | 2000-07-03 | 2002-01-23 | Toshiba Elevator Co Ltd | エレベータ用調速機 |
JP2006143394A (ja) * | 2004-11-19 | 2006-06-08 | Toshiba Elevator Co Ltd | エレベータの調速機。 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5065845A (en) * | 1990-09-13 | 1991-11-19 | Pearson David B | Speed governor safety device for stopping an elevator car |
CN101088897A (zh) * | 2007-07-10 | 2007-12-19 | 宁波申菱电梯配件有限公司 | 新颖的电梯限速器 |
CN201211988Y (zh) * | 2008-05-06 | 2009-03-25 | 河北东方富达机械有限公司 | 电梯限速器 |
WO2010084564A1 (ja) * | 2009-01-20 | 2010-07-29 | 三菱電機株式会社 | エレベータ用安全装置 |
ES2381966T3 (es) * | 2009-11-10 | 2012-06-04 | Thyssenkrupp Elevator Ag | Dispositivo de liberación para un limitador de velocidad de una instalación de ascensor |
WO2012017549A1 (ja) * | 2010-08-06 | 2012-02-09 | 三菱電機株式会社 | エレベータ用調速機 |
-
2015
- 2015-10-13 JP JP2017545013A patent/JP6518336B2/ja active Active
- 2015-10-13 KR KR1020187010100A patent/KR20180051605A/ko not_active Application Discontinuation
- 2015-10-13 WO PCT/JP2015/078870 patent/WO2017064745A1/ja active Application Filing
- 2015-10-13 EP EP15906210.8A patent/EP3363759B1/en active Active
- 2015-10-13 CN CN201580083717.XA patent/CN108137271B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001080838A (ja) * | 1999-09-10 | 2001-03-27 | Toshiba Corp | エレベータの調速機 |
JP2002020056A (ja) * | 2000-07-03 | 2002-01-23 | Toshiba Elevator Co Ltd | エレベータ用調速機 |
JP2006143394A (ja) * | 2004-11-19 | 2006-06-08 | Toshiba Elevator Co Ltd | エレベータの調速機。 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11414298B2 (en) | 2017-10-30 | 2022-08-16 | Otis Elevator Company | Governor assembly and elevator system |
Also Published As
Publication number | Publication date |
---|---|
JP6518336B2 (ja) | 2019-05-22 |
CN108137271B (zh) | 2019-11-19 |
CN108137271A (zh) | 2018-06-08 |
EP3363759A1 (en) | 2018-08-22 |
EP3363759A4 (en) | 2019-07-24 |
EP3363759B1 (en) | 2020-05-06 |
JPWO2017064745A1 (ja) | 2018-07-26 |
KR20180051605A (ko) | 2018-05-16 |
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