WO2015155854A1 - エレベータ装置 - Google Patents
エレベータ装置 Download PDFInfo
- Publication number
- WO2015155854A1 WO2015155854A1 PCT/JP2014/060291 JP2014060291W WO2015155854A1 WO 2015155854 A1 WO2015155854 A1 WO 2015155854A1 JP 2014060291 W JP2014060291 W JP 2014060291W WO 2015155854 A1 WO2015155854 A1 WO 2015155854A1
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- WO
- WIPO (PCT)
- Prior art keywords
- car
- rope
- tension wheel
- emergency stop
- switch member
- Prior art date
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Classifications
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- 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
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
-
- 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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- 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
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- 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
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- 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
-
- 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
- B66B5/185—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 acting on main ropes or main cables
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- 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
- B66B5/28—Buffer-stops for cars, cages, or skips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
Definitions
- the present invention relates to an elevator apparatus that performs emergency stop of a car by an emergency stop device when a suspension body that suspends the car is broken. It is about.
- the first overspeed Vos operation speed of the operation stop switch
- the second overspeed Vtr discharge stop operation speed
- Is set to about 1.4 times the rated speed Vr.
- the car speed may reach the bottom of the hoistway before it rises to the first overspeed Vos or the second overspeed Vtr.
- the car is decelerated and stopped by the shock absorber.
- the buffer requires a longer buffer stroke as the speed to be decelerated is higher, and the length of the buffer is determined according to the first excessive speed Vos and the second excessive speed Vtr.
- the collision speed Vs Vts + g ⁇ Ts It is. If the collision speed Vs is lower than the second excessive speed Vtr of the governor, the buffer stroke of the shock absorber can be shortened accordingly.
- the structure of the governor becomes complicated in order to reduce the first excessive speed Vos and the second excessive speed Vtr in the vicinity of the terminal floor.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an elevator apparatus capable of saving a hoistway with a simple configuration.
- the elevator apparatus is mounted on a car that moves up and down in a hoistway, a suspension that suspends a car, a hoist that raises and lowers the car, an emergency stop device that makes an emergency stop of the car, and a hoistway
- a car shock absorber that mitigates the impact of a car collision with the bottom, a rope that is laid in a ring in the hoistway, and connected to the car, is placed at the lower part of the hoistway, and the rope is wrapped around
- a tensioning wheel displacement detecting unit that activates the emergency stop device by detecting the downward displacement of the tensioning wheel caused by the fall of the car due to the breakage of the suspension.
- the tensioning wheel displacement detecting unit detects the downward displacement of the tensioning wheel due to the fall of the car due to the breakage of the suspension body and operates the emergency stop device.
- the buffer stroke of the vessel can be shortened, and the space for the hoistway can be saved.
- FIG. 1 It is a block diagram which shows the elevator apparatus by Embodiment 1 of this invention. It is a block diagram which shows typically the principal part of the elevator apparatus of FIG. It is a front view which shows the tension wheel of FIG. 1, and its peripheral part. It is a side view which shows the rope holding
- FIG. 1 is a block diagram showing an elevator according to Embodiment 1 of the present invention.
- a machine room 2 is provided in the upper part of the hoistway 1.
- a hoisting machine (driving device) 3 In the machine room 2, a hoisting machine (driving device) 3, a deflecting wheel 4, and a control device 5 are installed.
- the hoisting machine 3 includes a drive sheave 6, a hoisting machine motor (not shown) that rotates the driving sheave 6, and a hoisting machine brake 7 that brakes the rotation of the driving sheave 6.
- the hoisting machine brake 7 includes a brake wheel (drum or disk) that is coaxially coupled to the drive sheave 6, a brake shoe that contacts and separates from the brake wheel, and a brake spring that presses the brake shoe against the brake wheel and applies a braking force. And an electromagnetic magnet for releasing the braking force by releasing the brake shoe from the brake wheel against the brake spring.
- a suspension body 8 is wound around the driving sheave 6 and the deflecting wheel 4. As the suspension body 8, a plurality of ropes or a plurality of belts are used. A car 9 is connected to the first end of the suspension 8. A counterweight 10 is connected to the second end of the suspension 8.
- the car 9 and the counterweight 10 are suspended in the hoistway 1 by the suspension body 8 and are moved up and down in the hoistway 1 by the driving force of the hoisting machine 3.
- the control device 5 moves the car 9 up and down at a set speed by controlling the rotation of the hoisting machine 3.
- a pair of car guide rails 11 that guide the raising and lowering of the car 9 and a pair of counterweight guide rails 12 that guide the raising and lowering of the counterweight 10 are installed.
- a car buffer 13 and a counterweight buffer 14 are installed at the bottom of the hoistway 1.
- the car shock absorber 13 reduces the impact of the car 9 colliding with the bottom of the hoistway 1.
- the counterweight buffer 14 reduces the impact of the collision of the counterweight 10 on the bottom of the hoistway 1.
- An emergency stop device 15 that holds the car guide rail 11 and makes the car 9 emergency stop is mounted at the lower part of the car 9.
- the emergency stop device 15 is provided with an operating lever 16 for operating the emergency stop device 15.
- the machine room 2 is provided with a governor 17 that monitors whether the car 9 is traveling at an excessive speed.
- the governor 17 includes a governor sheave 18, an overspeed detection switch, a rope catch, and the like.
- a governor rope 19 is wound around the governor sheave 18.
- the governor rope 19 is laid in a ring shape in the hoistway 1 and connected to the operating lever 16. That is, the governor rope 19 is connected to the car 9 via the emergency stop device 15. Further, the governor rope 19 is wound around a tension wheel 20 arranged at the lower part of the hoistway 1. When the car 9 moves up and down, the governor rope 19 circulates and the governor sheave 18 rotates at a rotational speed corresponding to the traveling speed of the car 9.
- the governor 17 mechanically detects that the traveling speed of the car 9 has reached an excessive speed. As the excessive speed to be detected, a first excessive speed Vos that is higher than the rated speed Vr and a second excessive speed Vtr that is higher than the first excessive speed are set.
- the overspeed detection switch When the traveling speed of the car 9 reaches the first overspeed Vos, the overspeed detection switch is operated. Thereby, the electric power feeding to the hoisting machine 3 is interrupted, and the car 9 stops suddenly.
- FIG. 2 is a block diagram schematically showing the main part of the elevator apparatus of FIG.
- the actuating lever 16 is connected to the governor rope 19 through a pulling bar 32.
- a force in a direction opposite to the direction in which the safety device 15 is operated, for example, a downward pressing force by the resistance spring 33 is applied to the operating lever 16 and the pull-up bar 32.
- FIG. 3 is a front view showing the tensioning vehicle 20 of FIG. 1 and its peripheral portion.
- the tension wheel 20 is rotatably held by the tension wheel frame 21.
- the tension wheel 20 can be displaced in the vertical direction integrally with the tension wheel frame 21 and applies tension to the governor rope 19.
- first and second tensioner rails 22 a and 22 b that guide the vertical movement of the tensioner frame 21 are installed.
- a plurality of guide members 23 that slide along the tension vehicle rails 22a and 22b are fixed to the tension vehicle frame 21.
- a tension wheel displacement detection unit 24 is provided between the first tension wheel rail 22 a and the tension wheel frame 21, a tension wheel displacement detection unit 24 is provided.
- the tension wheel displacement detection unit 24 detects the downward displacement of the tension wheel 20 due to the fall of the car 9 due to the breakage of the suspension body 8 and activates the emergency stop device 15.
- the tension wheel displacement detection unit 24 of the first embodiment stops the movement of the governor rope 19 when the tension wheel 20 is lowered by a set distance or more from the normal position (position when the suspension body 8 is not broken).
- the emergency stop device 15 is activated.
- the tension wheel displacement detection unit 24 includes a rope gripping mechanism 25 fixed in the hoistway 1 and an L-shaped switch member 26 connected to the tension wheel 20.
- the rope gripping mechanism 25 is attached to the first tension wheel rail 22a.
- the switch member 26 is attached to the upper part of the tensioned vehicle frame 21.
- FIG. 3 is a side view showing the rope gripping mechanism 25 in FIG. 2
- FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3
- FIG. 5 is a plan view showing the tension wheel displacement detector 24 in FIG.
- the rope gripping mechanism 25 includes a rail holding member 27, first and second pins 28 a and 28 b, first and second gripping members 29 a and 29 b, a spring 30 and a wedge 31.
- the rail holding member 27 is fixed to the first tension wheel rail 22 a above the tension wheel 20.
- the governor rope 19 passes through a space formed between the first tension wheel rail 22 a and the rail holding member 27.
- the first and second pins 28 a and 28 b are provided on the rail holding member 27 in parallel with the governor rope 19.
- the first gripping member 29a can rotate around the first pin 28a.
- the second gripping member 29b can rotate around the second pin 28b.
- the gripping members 29a and 29b each have a first end facing the governor rope 19 and a second end located on the opposite side of the first end.
- the spring 30 is provided between the second ends of the gripping members 29a and 29b. Further, the spring 30 pushes the second end in the direction in which the first end grips the governor rope 19.
- the wedge 31 is interposed between the gripping members 29 a and 29 b, so that the first ends of the gripping members 29 a and 29 b are separated from the governor rope 19 against the spring 30. Hold it in the right position.
- FIG. 6 is a side view showing the relationship between the switch member 26 and the wedge 31 of FIG.
- the switch member 26 has a horizontal contact portion 26 a that faces the upper surface of the wedge 31.
- FIG. 9 is an explanatory diagram showing the primary vibration mode (vertical vibration of the tension wheel 20) in the simple model of FIG. 8, and FIG. 10 is the secondary vibration mode (the governor sheave 18 and the tension wheel in the simple model of FIG.
- FIG. 11 is an explanatory diagram showing a tertiary vibration mode (reverse phase vibration of the governor sheave 18 and the tension wheel 20) in the simplified model of FIG.
- M is the inertial mass of the governor mechanism and is a constant value.
- K is a rigidity determined by the governor rope 19 and has a constant value.
- ⁇ is a variable that changes depending on the car position, and takes a value of 0 to 1, with 0 representing the lowest floor and 1 representing the highest floor.
- the deceleration of the car 9 that exceeds 0.6 G and becomes 1 G or less is used as a criterion for determining the breakage of the suspension body 8.
- the judgment criterion is 0.8 G from the following equation.
- the switch distance x 1s in FIG. 7 is set to about 0.8 ⁇ 1 g .
- the speed governor rope 19 is gripped by the lowering of the tension wheel 20 due to the breakage of the suspension body 8, and the emergency stop device 15 is activated. That is, when the car 9 is accelerated downward by 1 G due to the breakage of the suspension body 8, the tension wheel 20 is lowered by x 1 g as shown in the equation (2).
- the switch member 26 pushes the wedge 31 downward, the wedge 31 comes out between the gripping members 29a and 29b, and the governor rope 19 is pulled by the gripping members 29a and 29b. Grasped.
- the tension wheel displacement detection unit 24 does not operate even when the suspension body 8 is broken. However, in that case, there is no problem because the car 9 can be stopped by the normal overspeed detection by the governor 17.
- the tension wheel displacement detection unit 24 detects the downward displacement of the tension wheel 20 due to the fall of the car 9 due to the breakage of the suspension body 8 and operates the emergency stop device 15. With this configuration, the buffer stroke of the shock absorber 13 can be shortened, and the space of the hoistway 1 can be saved.
- the configuration can be further simplified. Further, since the switch member 26 that moves up and down together with the tensioning wheel 20 and the rope gripping mechanism 25 that is mechanically operated by the switch member 26 and grips the governor rope 19 are used, the simple configuration makes it more reliable.
- the emergency stop device 15 can be activated. Furthermore, the criterion for determining the breakage of the suspension body 8 can be easily adjusted by adjusting the switch distance.
- FIG. 13 is a front view showing a tension wheel 20 and its peripheral portion of an elevator apparatus according to Embodiment 2 of the present invention.
- a vibration suppression damper 34 is provided between the tensioned vehicle frame 21 and the bottom of the hoistway 1.
- the vibration suppression damper 34 is connected to the tensioned vehicle 20 via the tensioned vehicle frame 21.
- the vibration suppression damper 34 suppresses the vertical vibration of the tensioned vehicle 20 when the car 9 is emergency stopped by the hoisting machine brake 7.
- Other configurations and operations are the same as those in the first embodiment.
- the vibration suppression damper 34 is connected to the tension wheel 20 to suppress the vertical vibration of the tension wheel 20 due to the car deceleration vibration, thereby switching the displacement of the tension wheel 20 at a constant deceleration.
- the malfunction of the tension wheel displacement detector 24 can be more reliably prevented.
- FIG. 14 is a graph showing the change over time of vertical vibration of the tensioned vehicle 20 during an emergency brake operation.
- the case where the vibration suppression damper 34 is not used is indicated by a one-dot chain line, and the case where the vibration suppression damper 34 is used is indicated by a solid line. Yes.
- the use of the vibration suppression damper 34 can sufficiently reduce the influence of car vibration.
- the damping coefficient of the vibration suppression damper 34 is set so that the attenuation ratio is about 0.7. Thereby, as shown by the solid line in FIG. 14, it is possible to suppress the time delay in which the tension wheel 20 descends while suppressing the descending amount that moves below the broken line.
- FIG. 15 is an explanatory view schematically showing a main part of a tension wheel displacement detection part of an elevator apparatus according to Embodiment 3 of the present invention.
- an expansion / contraction absorption damper 35 is provided between the switch member 26 and the tensioned vehicle frame 21 and the tensioned vehicle 20.
- a switch member support spring 36 is connected between the switch member 26 and the rail holding member 27.
- the expansion / contraction absorption damper 35 absorbs the vertical displacement of the tension wheel 20 due to the expansion / contraction of the governor rope 19 at the normal time, not when the suspension body 8 is broken, by expansion / contraction.
- the switch member support spring 36 holds the position of the switch member 26 with respect to the rope gripping mechanism 25 with respect to the expansion and contraction of the expansion / contraction absorption damper 35.
- Other configurations and operations are the same as those in the first or second embodiment.
- the governor rope 19 will grow due to aging. Further, the governor rope 19 expands and contracts due to a temperature change in the hoistway 1. For example, when the governor rope 19 is extended due to secular change, the position of the tension wheel 20 is lowered, and the distance between the switch member 26 and the wedge 31 is narrowed.
- the expansion / contraction absorption damper 35 is connected in series to the switch member 26, and the switch member 26 is supported by a switch member support spring 36 having low rigidity.
- the expansion / contraction absorption damper 35 does not act as a resistance force to the expansion / contraction of the suspension body 8 but responds by expanding / contracting. At this time, the distance between the switch member 26 and the wedge 31 does not change because the switch member 26 is supported by the switch member support spring 36.
- m represents the mass of the switch member 26
- k represents the switch member support spring 36
- c represents the expansion / contraction absorption damper 35. Since the expansion / contraction damper 35 keeps the position of the switch member 26 with a slow movement, the inertia term of the first term on the left side of the equation (4) can be ignored. Therefore, the movement of the switch member 26 can be expressed by the following equation.
- the expansion / contraction absorption damper 35 and the switch member support spring 36 are used, the breakage of the suspension body 8 can be detected more reliably while responding to the expansion / contraction of the governor rope 19 during normal operation.
- the stop device 15 can be activated.
- FIG. 16 is a block diagram showing a tension wheel displacement detector of an elevator apparatus according to Embodiment 4 of the present invention.
- the tension wheel displacement detection unit 41 according to the fourth embodiment is operated by a downward displacement of the tension wheel 20 due to the fall of the car 9 due to the breakage of the suspension body 8 and outputs an electric operation command signal.
- a rope brake 43 as an emergency stop operating unit that operates the emergency stop device 15 in response to an operation command signal from the signal generating unit 42.
- the signal generator 42 includes the same switch member 26 as in the first embodiment, a contact part 44 fixed to the first tensioning rail 22a, and a contact signal processing part 45 connected to the contact part 44. And have. When the switch member 26 hits the contact portion 44 due to the downward displacement of the tension wheel 20, an operation command signal is output from the contact signal processing portion 45.
- the rope brake 43 is provided in the speed governor 17.
- An operation command signal from the contact signal processing unit 45 is input to the rope brake 43.
- the rope brake 43 grips the governor rope 19 and stops the movement of the governor rope 19.
- Other configurations and operations are the same as those in the first embodiment.
- the emergency stop device 15 is operated using an electrical operation command signal, so that a mechanical operation mechanism can be omitted and the structure can be simplified.
- the rope brake 43 is shown as the emergency stop operating portion.
- the present invention is not limited to this.
- an actuator or an emergency stop device that drives the rope catch of the existing governor 17 is used.
- the actuator etc. which are directly mounted in 15 and actuate the emergency stop device 15 may be used.
- vibration suppression damper 34 of the second embodiment may be connected to the tension wheel 20 of the fourth embodiment.
- expansion / contraction absorption damper 35 and the switch member support spring 36 of the third embodiment may be connected to the switch member 26 of the fourth embodiment.
- the breakage of the suspension body 8 is detected by the displacement of the tension wheel 20 around which the governor rope 19 is wound.
- the rope is looped in the hoistway 1 separately from the governor rope 19. It is also possible to detect the breakage of the suspension body 8 based on the displacement of the tension wheel on which the lower end of the rope is wound.
- the emergency stop device 15 is mounted on the lower portion of the car 9, but it may be mounted on the upper portion or on both the upper and lower sides.
- the car shock absorber may be mounted on the lower part of the car.
- the equipment layout and roping method of the entire elevator apparatus are not limited to the example of FIG.
- the present invention can be applied to a 2: 1 roping elevator apparatus.
- the position and number of hoisting machines are not limited to the example of FIG.
- the present invention can be applied to various types of elevator devices such as a machine room-less elevator, a double deck elevator, or a one-shaft multi-car elevator.
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Abstract
Description
に関するものである。
Vs=Vts+g×Ts
である。この衝突速度Vsが調速機の第2の過大速度Vtrよりも低ければ、その分だけ緩衝器の緩衝ストロークを短縮することが可能である。
実施の形態1.
図1はこの発明の実施の形態1によるエレベータを示す構成図である。図において、昇降路1の上部には、機械室2が設けられている。機械室2には、巻上機(駆動装置)3、そらせ車4、及び制御装置5が設置されている。巻上機3は、駆動シーブ6、駆動シーブ6を回転させる巻上機モータ(図示せず)、及び駆動シーブ6の回転を制動する巻上機ブレーキ7を有している。
x1g=MG/K ・・・(2)
x1b=βx1g ・・・(3)
さらに、張り車20とともに上下動するスイッチ部材26と、スイッチ部材26により機械的に操作されて調速機ロープ19を把持するロープ把持機構25とを用いたので、簡単な構成により、より確実に非常止め装置15を作動させることができる。
さらにまた、懸架体8の破断の判断基準をスイッチ距離の調整により容易に調整することができる。
次に、図13はこの発明の実施の形態2によるエレベータ装置の張り車20及びその周辺部分を示す正面図である。実施の形態2では、張り車枠21と昇降路1の底部との間に振動抑制ダンパ34が設けられている。即ち、張り車20には、張り車枠21を介して振動抑制ダンパ34が接続されている。振動抑制ダンパ34は、巻上機ブレーキ7によるかご9の非常停止時の張り車20の上下振動を抑制する。他の構成及び動作は、実施の形態1と同様である。
次に、図15はこの発明の実施の形態3によるエレベータ装置の張り車変位検出部の要部を模式的に示す説明図である。実施の形態3では、スイッチ部材26と張り車枠21及び張り車20との間に伸縮吸収ダンパ35が設けられている。また、スイッチ部材26とレール保持部材27との間には、スイッチ部材支持ばね36が接続されている。
次に、図16はこの発明の実施の形態4によるエレベータ装置の張り車変位検出部を示す構成図である。実施の形態4の張り車変位検出部41は、懸架体8の破断によるかご9の落下に伴う張り車20の下方向への変位により操作され電気的な作動指令信号を出力する信号発生部42と、信号発生部42からの作動指令信号に応じて非常止め装置15を作動させる非常止め作動部としてのロープブレーキ43とを有している。
さらに、実施の形態4のスイッチ部材26に実施の形態3の伸縮吸収ダンパ35及びスイッチ部材支持ばね36を接続してもよい。
さらに、かご緩衝器は、かごの下部に搭載してもよい。
さらにまた、エレベータ装置全体の機器のレイアウト及びローピング方式等は、図1の例に限定されるものではない。例えば、この発明は、2:1ローピングのエレベータ装置にも適用できる。また、例えば巻上機の位置及び数等も図1の例に限定されない。
また、この発明は、例えば、機械室レスエレベータ、ダブルデッキエレベータ、又はワンシャフトマルチカー方式のエレベータなど、種々のタイプのエレベータ装置に適用できる。
Claims (6)
- 昇降路内を昇降するかご、
前記かごを吊り下げる懸架体、
前記かごを昇降させる巻上機、
前記かごに搭載されており、前記かごを非常停止させる非常止め装置、
前記昇降路の底部への前記かごの衝突の衝撃を緩和するかご緩衝器、
前記昇降路内に環状に敷設されており、かつ前記かごに接続されているロープ、
前記昇降路の下部に配置されており、かつ前記ロープが巻き掛けられている張り車、及び
前記懸架体の破断による前記かごの落下に伴う前記張り車の下方向への変位を検出して前記非常止め装置を作動させる張り車変位検出部
を備えているエレベータ装置。 - 調速機シーブを有しており、前記かごの過大速度走行の有無を監視する調速機をさらに備え、
前記ロープは、前記調速機シーブに巻き掛けられており、かつ前記非常止め装置に接続されている調速機ロープである請求項1記載のエレベータ装置。 - 前記張り車変位検出部は、前記昇降路内に固定されているロープ把持機構と、前記張り車に接続されているスイッチ部材とを有しており、
前記懸架体の破断による前記かごの落下に伴う前記張り車の下方向への変位により、前記スイッチ部材が下方向へ変位し前記ロープ把持機構を機械的に操作すると、前記ロープ把持機構が前記ロープを把持して前記非常止め装置が作動する請求項1又は請求項2に記載のエレベータ装置。 - 前記スイッチ部材と前記張り車との間には、前記調速機ロープの伸縮による前記張り車の上下方向への変位を伸縮により吸収する伸縮吸収ダンパが設けられており、
前記スイッチ部材と前記ロープ把持機構との間には、前記伸縮吸収ダンパの伸縮に対して、前記ロープ把持機構に対する前記スイッチ部材の位置を保持するスイッチ部材支持ばねが設けられている請求項3記載のエレベータ装置。 - 前記張り車変位検出部は、前記懸架体の破断による前記かごの落下に伴う前記張り車の下方向への変位により操作され作動指令信号を出力する信号発生部と、前記信号発生部からの作動指令信号に応じて前記非常止め装置を作動させる非常止め作動部とを有している請求項1又は請求項2に記載のエレベータ装置。
- 前記巻上機には、巻上機ブレーキが設けられており、
前記張り車には、前記巻上機ブレーキによる前記かごの非常停止時の前記張り車の上下振動を抑制する振動抑制ダンパが接続されている請求項1から請求項5までのいずれか1項に記載のエレベータ装置。
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US15/122,004 US10093515B2 (en) | 2014-04-09 | 2014-04-09 | Elevator apparatus |
PCT/JP2014/060291 WO2015155854A1 (ja) | 2014-04-09 | 2014-04-09 | エレベータ装置 |
JP2016512530A JP6152964B2 (ja) | 2014-04-09 | 2014-04-09 | エレベータ装置 |
KR1020167027895A KR101920546B1 (ko) | 2014-04-09 | 2014-04-09 | 엘리베이터 장치 |
CN201480077661.2A CN106132861B (zh) | 2014-04-09 | 2014-04-09 | 电梯装置 |
DE112014006564.1T DE112014006564B4 (de) | 2014-04-09 | 2014-04-09 | Aufzugvorrichtung |
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PCT/JP2014/060291 WO2015155854A1 (ja) | 2014-04-09 | 2014-04-09 | エレベータ装置 |
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US (1) | US10093515B2 (ja) |
JP (1) | JP6152964B2 (ja) |
KR (1) | KR101920546B1 (ja) |
CN (1) | CN106132861B (ja) |
DE (1) | DE112014006564B4 (ja) |
WO (1) | WO2015155854A1 (ja) |
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CN108328535A (zh) * | 2018-03-30 | 2018-07-27 | 江苏盛浩工程科技有限公司 | 一种防坠保护装置 |
JP7103462B1 (ja) | 2021-03-25 | 2022-07-20 | フジテック株式会社 | エレベータの制御システム |
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CN106132861A (zh) | 2016-11-16 |
JP6152964B2 (ja) | 2017-06-28 |
KR101920546B1 (ko) | 2018-11-20 |
KR20160131078A (ko) | 2016-11-15 |
DE112014006564B4 (de) | 2021-03-18 |
JPWO2015155854A1 (ja) | 2017-04-13 |
US20170008732A1 (en) | 2017-01-12 |
DE112014006564T5 (de) | 2017-02-09 |
US10093515B2 (en) | 2018-10-09 |
CN106132861B (zh) | 2019-09-17 |
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