WO2016047314A1 - エレベータ装置 - Google Patents
エレベータ装置 Download PDFInfo
- Publication number
- WO2016047314A1 WO2016047314A1 PCT/JP2015/073025 JP2015073025W WO2016047314A1 WO 2016047314 A1 WO2016047314 A1 WO 2016047314A1 JP 2015073025 W JP2015073025 W JP 2015073025W WO 2016047314 A1 WO2016047314 A1 WO 2016047314A1
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- WO
- WIPO (PCT)
- Prior art keywords
- car
- governor
- emergency stop
- stop device
- rotating disk
- 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
- B66B5/16—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
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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
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- 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
Definitions
- the present invention relates to an elevator device that makes an emergency stop of a car by an emergency stop device, for example, when a suspension body is broken.
- 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 Vo.
- 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 shock absorber becomes longer, the pit depth of the hoistway increases.
- the emergency stop device is activated by a large car acceleration generated by rope breakage.
- the angle of the operating lever, the tension of the governor rope, and the rotational inertial mass of the governor mechanism are set so that the emergency stop device does not malfunction with a small acceleration (see, for example, Patent Document 2).
- the emergency stop device malfunctions due to vibration generated in the car, for example, when the power supply to the hoisting machine is cut off due to a power failure etc. and the car is suddenly stopped by the hoisting machine brake There is still a possibility to do. That is, when the braking force of the hoisting machine brake is set to be strong, the vibration generated in the car due to the operation of the emergency brake instantaneously approaches 1G which is the gravitational acceleration. For this reason, the emergency stop device malfunctions due to the rotational inertial mass of the governor mechanism. Further, when the car vibrates greatly due to the passengers in the car violently, the emergency stop device may malfunction similarly.
- the present invention has been made to solve the above-described problems, and an elevator apparatus capable of saving the hoistway space while preventing the malfunction of the emergency stop device with a simple configuration is obtained. For the purpose.
- An elevator apparatus is provided in a car that moves up and down in a hoistway, a suspension body that suspends a car, an emergency stop device mounted on the car, and an emergency stop device that operates the emergency stop device.
- the speed governor mechanism having the speed governor rope and the speed control when the car descends the lower speed change section that is the area from the lowest floor to the rated speed in the hoistway.
- An additional inertial mass is added to the machine mechanism, and an inertial mass addition mechanism is provided to release the inertial mass when the car is raised.
- the elevator apparatus is provided in a car that moves up and down in a hoistway, a suspension body that suspends a car, an emergency stop device mounted on the car, and an emergency stop device, and operates the emergency stop device.
- a resistance force adding mechanism is provided for adding a resistance force to the motion of the governor mechanism and reducing or canceling the resistance force when the car is raised.
- the elevator apparatus is provided in a car that moves up and down in a hoistway, a suspension body that suspends a car, an emergency stop device mounted on the car, and an emergency stop device, and operates the emergency stop device.
- a governor mechanism that has a governor rope and an additional inertial mass added to the governor mechanism when the car descends the hoistway, and release of the inertial mass when the car is raised
- An inertial mass adding mechanism is provided.
- the elevator device of the present invention can save space in the hoistway while preventing malfunction of the emergency stop device with a simple configuration.
- FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is a front view which shows the state at the time of the action
- FIG. 5 is a sectional view taken along line VV in FIG. 4. It is explanatory drawing which shows operation
- FIG. 7 It is a graph which shows the relationship between the position of the action
- FIG. It is explanatory drawing which shows the operation
- FIG. It is a front view which shows the detail of the tension vehicle of FIG. It is explanatory drawing which shows the operation
- FIG. It is explanatory drawing which shows the operation
- FIG. It is a block diagram which shows the principal part of the elevator apparatus by Embodiment 2 of this invention. It is a block diagram which shows the state at the time of the cage
- FIG. 24 is a sectional view taken along line XXIV-XXIV in FIG. It is sectional drawing which shows the state of a friction mechanism when a cage
- FIG. 1 is a block diagram showing an elevator apparatus 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 that rotates the driving sheave 6, and a hoisting machine brake (electromagnetic brake) 7 that brakes the rotation of the driving sheave 6.
- the hoisting machine brake 7 includes a brake wheel (drum or disk) coupled coaxially with the drive sheave 6, a brake shoe for braking the rotation of the brake wheel by contacting the brake wheel, and pressing the brake shoe against the brake wheel.
- a brake spring for applying a braking force and an electromagnetic magnet for releasing the braking force by pulling the brake shoe away 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 shock absorber 13 for buffering the collision of the car 9 with the hoistway bottom and a counterweight buffer 14 for buffering the collision of the counterweight 10 with the hoistway bottom are installed. ing.
- 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.
- a progressive type emergency stop device is used (in general, an elevator device having a rated speed exceeding 45 m / min uses a progressive type emergency stop device).
- the machine room 2 is provided with a speed governor 17 that detects the overspeed traveling of the car 9.
- 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 emergency stop device 15. Further, the governor rope 19 is wound around a tension wheel 20 disposed 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.
- a first excessive speed Vos that is higher than the rated speed Vo and a second excessive speed Vtr that is higher than the first excessive speed are set as excessive speeds to be detected.
- the overspeed detection switch When the traveling speed of the car 9 reaches the first overspeed Vos, the overspeed detection switch is operated. When the overspeed detection switch is operated, the power supply to the hoisting machine 3 is cut off, the hoisting machine brake 7 is activated, and the car 9 is suddenly stopped.
- FIG. 2 is a front view showing the relationship between the car guide rail 11 and the safety device 15 in FIG. 1
- FIG. 3 is a sectional view taken along the line III-III in FIG. 2
- FIG. 4 is an operation of the safety device 15 in FIG.
- FIG. 5 is a cross-sectional view taken along line VV in FIG. 4.
- the emergency stop device 15 has a pair of left and right grips for gripping the corresponding car guide rail 11. As shown in FIG. 2, each gripping portion has a pair of wedges 25, a pair of wedge guides 26, and a plurality of wedge guide springs 27.
- the wedge 25 can move up and down with respect to the frame of the safety device 15 along an inclined surface provided in the wedge guide 26.
- the wedge guide spring 27 is provided between the frame body of the safety device 15 and the wedge guide 26.
- the wedge 25 is opposed to the car guide rail 11 with a gap as shown in FIG.
- the wedge 25 is lifted when the safety device 15 is operated. At this time, the wedge 25 approaches the car guide rail 11 along the wedge guide 26 and finally comes into contact with the car guide rail 11 as shown in FIG.
- the wedge 25 When the wedge 25 is further lifted, the wedge 25 moves upward while pushing the wedge guide 26 in the horizontal direction so as to contract the wedge guide spring 27.
- the compression of the wedge guide spring 27 increases the pressing force that acts on the car guide rail 11 from the wedge 25, and the frictional force generated between the car guide rail 11 and the emergency stop device 15 increases according to the amount of biting of the wedge 25. To do. As a result, the wedge 25 grips the car guide rail 11 and the car 9 comes to an emergency stop.
- FIG. 6 is an explanatory view showing the operation of the emergency stop device 15 when the suspension body 8 of FIG. 1 is broken.
- the emergency stop device 15 is rotatably provided with an operating lever 16 (not shown in FIG. 1) that operates the emergency stop device 15.
- a wedge 25 is connected to the tip of the operating lever 16.
- the operating lever 16 is lifted (when it rotates counterclockwise in FIG. 6), the wedge 25 is also lifted in synchronization with the operating lever 16. That is, the emergency stop device 15 is operated by rotating the operating lever 16 counterclockwise in FIG.
- the emergency stop device 15 is provided with a rotating spring 22 that applies a force in the direction opposite to the direction in which the emergency stop device 15 is operated (clockwise in FIG. 6) to the operating lever 16.
- An initial rotation amount is given to the rotation spring 22. This initial rotation amount generates a resistance force for pulling up the operating lever 16 and prevents the operating lever 16 from rotating carelessly. Therefore, even if the hoisting machine brake 7 is operated while the car 9 is running and the vertical vibration is generated in the car 9, the operating lever 16 is not lifted and the emergency stop device 15 is not operated.
- the connecting portion 23 is fixed to the governor rope 19.
- a pulling bar 24 is connected between the connecting portion 23 and the operating lever 16. That is, the governor rope 19 is connected to the emergency stop device 15 through the connecting portion 23, the pull-up bar 24, and the operating lever 16. Further, the upper end portion of the pull-up bar 24 is rotatably connected to the connecting portion 23. Further, the lower end portion of the pull-up bar 24 is rotatably connected to the operating lever 16.
- the governor mechanism 100 of the first embodiment includes a governor sheave 18, a governor rope 19, and a tension wheel 20.
- the speed governor mechanism 100 increases at aG lower than 1G (a ⁇ 1.0). Therefore, an acceleration difference is generated between the car 9 and the governor mechanism 100.
- the speed of the governor mechanism 100 becomes kV (k ⁇ 1) lower than the car speed V, and the emergency stop device 15 is operated by pulling up the operating lever 16.
- the car speed V at the time of the operation of the safety device 15 is lower than the rated speed Vo.
- FIG. 7 is an explanatory view showing a malfunction of the emergency stop device 15 when the car 9 is suddenly stopped by the hoisting machine brake 7 of FIG.
- the hoisting machine brake 7 When the hoisting machine brake 7 is activated while the car 9 is moving up, the car 9 is decelerated at about 0.3 G. At this time, downward acceleration is generated in the car 9.
- the governor mechanism 100 does not receive the brake deceleration force directly and decelerates at an acceleration bG lower than 0.3 G (b ⁇ 0.3). Therefore, the speed kV of the governor mechanism 100 is faster than the speed V of the car 9 (k> 1), and the emergency stop device 15 malfunctions when the operating lever 16 is raised.
- FIG. 8 is a graph showing the relationship between the position of the actuating lever 16 and the pulling force of the actuating lever 16 in FIG.
- the spring force by the rotary spring 22 is stronger than the force that pulls up the operating lever 16 by F1, and the operating lever 16 does not rise.
- the suspension body 8 is broken, the lifting force is stronger than the spring force of the rotary spring 22 by F2, and the emergency stop device 15 operates.
- the first embodiment uses a mechanism in which the rotational inertial mass of the governor mechanism 100 changes according to the traveling direction. That is, when the car 9 is lowered, the additional mass rotates together with the tension wheel 20, thereby increasing the rotational inertial mass of the portion that moves integrally with the governor mechanism 100. On the other hand, when the car 9 is raised, the additional mass is separated from the tension wheel 20 so that the additional mass does not contribute to the inertia of the governor mechanism 100.
- FIG. 9 is an explanatory view showing the operation of the speed governor mechanism 100 according to the first embodiment when the car is raised
- FIG. 10 is an explanatory view showing the operation of the speed governor mechanism 100 according to the first embodiment when the car is lowered
- FIG. FIG. 10 is a front view showing details of the tension wheel 20 of FIG. 9.
- a rotating disk 28 is installed on the same rotation axis as the tension wheel 20.
- the tension wheel 20 and the rotary disk 28 are connected by a rotary shaft 29.
- the rotating shaft 29 is directly connected to the rotating disk 28.
- the rotary shaft 29 is connected to the tension wheel 20 via a ratchet mechanism 30 as shown in FIG.
- the ratchet mechanism 30 includes a ratchet 31, a plurality of claws 32, and a plurality of springs 33.
- the ratchet 31 is fixed to the rotating shaft 29 and rotates integrally with the rotating shaft 29.
- a plurality of teeth 31 a are provided on the outer periphery of the ratchet 31.
- Each nail 32 is rotatably supported by the tension wheel 20.
- the spring 33 is provided between the tension wheel 20 and the claw 32 and presses the claw 32 against the outer periphery of the ratchet 31.
- the ratchet mechanism 30 does not transmit the rotation of the tension wheel 20 when the car 9 is raised to the rotating disk 28, and transmits the rotation of the tension wheel 20 when the car 9 is lowered to the rotating disk 28.
- the inertial mass adding mechanism 101 includes a rotating disk 28, a rotating shaft 29, and a ratchet mechanism 30, and adds an additional inertial mass to the governor mechanism 100 when the car 9 is lowered. At the time of rising, the addition of inertia mass is canceled.
- the hoistway 1 can be saved in space while preventing the emergency stop device 15 from malfunctioning.
- the setting range of the rotary spring 22 that prevents the emergency stop device 15 from malfunctioning can be greatly widened, adjustment work becomes easy, and passenger confinement due to malfunction can be more reliably prevented.
- the inertial mass adding mechanism 101 includes the rotational disk 28 and the rotational disk 28 as shown in FIGS.
- an additional disk 34 which is another rotating disk, and a loop-shaped rope 35 as a transmission body
- the rope 35 is wound around the rotating disk 28 and the additional disk 34, and transmits the rotation of the rotating disk 28 to the additional disk 34.
- the rotating disk 28 is connected to the tension wheel 20 via the ratchet mechanism 30, but may be connected to the governor sheave 18.
- FIG. 14 is a block diagram showing a main part of an elevator apparatus according to Embodiment 2 of the present invention.
- an additional mass body 41 as an inertial mass adding mechanism is a lower speed change section (the hoistway 1) in the hoistway 1. In the lower area), that is, the area from the lowest floor to the rated speed.
- a first contact member 38 is provided at the connecting portion 23 that connects the operating lever 16 and the speed governor mechanism 100.
- the additional mass body 41 includes a lower rotating disk 21 adjacent to the tension wheel 20, an upper rotating disk 36 disposed immediately above the lower rotating disk 21, and a transmission body wound around these rotating disks 21, 36.
- the first contact member 38 hits the second contact member 39 when the car 9 descends to the lower speed change section.
- the mass of the weight 40 is set to be slightly heavier than that of the second contact member 39.
- Other configurations are the same as those in the first embodiment.
- the first contact member 38 is separated from the second contact member 39.
- the weight 40 is close to the lower rotary disk 21 due to the mass difference between the second contact member 39 and the return weight 40.
- the second contact member 39 is close to the upper rotating disk 36.
- the mass of the weight 40 is set so that the rising acceleration of the second contact member 39 is small, the second contact member 39 is raised at a speed sufficiently lower than the rising speed of the car 9. .
- the first contact member 38 rises away from the second contact member 39.
- the additional mass body 41 is disconnected from the governor mechanism 100, and the addition of the inertial mass by the additional mass body 41 is released.
- FIG. 17 is a block diagram showing a main part of an elevator apparatus according to Embodiment 3 of the present invention.
- a damper mechanism 42 as a resistance addition mechanism is provided in the lower speed change section in the hoistway 1 instead of the additional mass body 41 of the second embodiment.
- the damper mechanism 42 includes a plunger 43, a cylinder 44, a return spring 45, oil 46, and a second contact member 47.
- the plunger 43 is inserted into the cylinder 44 so as to be movable up and down.
- the return spring 45 is interposed between the bottom of the cylinder 44 and the lower end of the plunger 43 and pushes the plunger 43 upward.
- the inside of the cylinder 44 is filled with oil 46.
- An orifice is provided at the lower end of the plunger 43.
- the second contact member 47 is fixed to the upper end portion of the plunger 43.
- the first contact member 38 hits the second contact member 47 when the car 9 descends to the lower speed change section.
- a material of the second contact member 47 for example, rubber is used. Thereby, the collision sound and vibration when the first contact member 38 contacts the second contact member 47 are alleviated.
- Other configurations are the same as those in the first and second embodiments.
- the governor mechanism 100 receives a fluid resistance force (damping force) from the oil 46 in the cylinder 44 by the orifice at the lower end of the plunger 43. That is, the plunger 43 descends while applying resistance to the governor mechanism 100 when the car 9 descends the lower speed change section.
- the ascending speeds of the plunger 43 and the second contact member 47 are slower than the ascending speed of the connecting portion 23 due to the fluid resistance force of the oil 46 of the plunger 43.
- the first contact member 38 rises away from the second contact member 47. That is, the plunger 43 is disconnected from the speed governor mechanism 100 when the car 9 is raised.
- the emergency stop device 15 can be prevented from malfunctioning. In this way, with a simple configuration, the hoistway 1 can be saved in space while preventing the emergency stop device 15 from malfunctioning.
- the ascending speed of the plunger 43 can be adjusted by the orifice area at the lower end of the plunger 43, the spring force of the return spring 45, and the viscosity of the oil 46.
- the first contact member 38 is in direct contact with the additional mass body 41 or the damper mechanism 42, but magnets that repel each other may be provided on the contact surface. Thereby, the collision sound accompanying a contact can be eliminated and a passenger in a car is not uncomfortable.
- FIG. 20 is a block diagram showing a main part of an elevator apparatus according to Embodiment 4 of the present invention.
- a friction guide rail 49 is installed in the lower speed change section in the hoistway 1 instead of the additional mass body 41 of the second embodiment.
- the friction guide rail 49 is erected in parallel with the car guide rail 11.
- a wedge mechanism 48 is provided in the connecting portion 23 instead of the first contact member 38 in the second embodiment.
- the resistance force adding mechanism of the fourth embodiment is a friction mechanism 60 having a friction guide rail 49 and a wedge mechanism 48.
- 21 is a configuration diagram showing a state of the governor mechanism 100 and the friction mechanism 60 of FIG. 20 when the car is lowered
- FIG. 22 is a diagram of the governor mechanism 100 and the friction when the car 9 is lifted from the state of FIG. 4 is a configuration diagram showing a state of a mechanism 60.
- FIG. 21 is a configuration diagram showing a state of the governor mechanism 100 and the friction mechanism 60 of FIG. 20 when the car is lowered
- FIG. 22 is a diagram of the governor mechanism 100 and the friction when the car 9 is lifted from the state of FIG. 4 is a configuration diagram showing a state of a mechanism 60.
- FIG. 23 is a plan view showing the friction mechanism 60 of FIG. 20, and FIG. 24 is a sectional view taken along line XXIV-XXIV of FIG.
- the cross-sectional width of the upper end portion of the friction guide rail 49 is gradually reduced toward the upper end.
- the wedge mechanism 48 includes a pair of friction wedges 50, a plurality of friction wedge springs 51, a pair of guide members 52, a plurality of horizontal springs 53, and a frame body 54.
- the friction wedge 50 is arranged so as to sandwich the friction guide rail 49 from both sides when the car 9 is positioned in the lower speed change section.
- the friction wedge spring 51 is interposed between the lower end portion of the friction wedge 50 and the frame body 54. The friction wedge 50 can move up and down by the expansion and contraction of the wedge spring 51.
- Each guide member 52 is provided with an inclined surface for guiding the corresponding friction wedge 50.
- the horizontal spring 53 is interposed between the guide member 52 and the frame body 54.
- the guide member 52 can move in the horizontal direction by the expansion and contraction of the horizontal spring 53.
- Other configurations are the same as those in the first to third embodiments.
- the guide member 52 moves in the horizontal direction so as to compress the horizontal spring 53 in the horizontal direction. Therefore, the force with which the friction wedge 50 presses the friction guide rail 49 increases due to the compression force of the horizontal spring 53, and the friction force generated in the friction wedge 50 further increases.
- the wedge mechanism 48 receives a large frictional force by sliding on the friction guide rail 49, and the governor mechanism 100 receives an upward force. It will be. For this reason, when the suspension body 8 breaks while the car 9 is descending the lower speed change section, the movement of the governor mechanism 100 is delayed with respect to the fall of the car 9, and the car 9 and the speed governor.
- the emergency stop device 15 is immediately actuated by the acceleration difference with the mechanical mechanism 100.
- FIG. 1 shows a 1: 1 roping elevator device
- the roping method is not limited to this, and the present invention can also be applied to, for example, a 2: 1 roping elevator device. Further, the present invention can be applied to various types of elevator apparatuses as well as machine room-less elevators that do not have the machine room 2.
Abstract
Description
また、この発明に係るエレベータ装置は、昇降路内を昇降するかご、かごを吊り下げる懸架体、かごに搭載されている非常止め装置、非常止め装置に設けられており、非常止め装置を作動させる作動レバー、調速機シーブと、調速機シーブに対して上下方向に間隔をおいて配置されている張車と、調速機シーブ及び前記張車に巻かれており、かつ作動レバーに接続されている調速機ロープとを有している調速機機構、及びかごが、昇降路のうち、少なくとも最下階から定格速度に到達するまでの領域である下部速度変化区間を下降するときに調速機機構の運動に抵抗力を付加し、かごの上昇時には抵抗力を減少又は解除する抵抗力付加機構を備えている。
また、この発明に係るエレベータ装置は、昇降路内を昇降するかご、かごを吊り下げる懸架体、かごに搭載されている非常止め装置、非常止め装置に設けられており、非常止め装置を作動させる作動レバー、調速機シーブと、調速機シーブに対して上下方向に間隔をおいて配置されている張車と、調速機シーブ及び張車に巻かれており、かつ作動レバーに接続されている調速機ロープとを有している調速機機構、及びかごが昇降路を下降するときに調速機機構に追加の慣性質量を付加し、かごの上昇時には慣性質量の付加を解除する慣性質量付加機構を備えている。
実施の形態1.
図1はこの発明の実施の形態1によるエレベータ装置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と、駆動シーブ6を回転させる巻上機モータと、駆動シーブ6の回転を制動する巻上機ブレーキ(電磁ブレーキ)7とを有している。
また、実施の形態1では、ラチェット機構30を介して張車20に回転円盤28を接続したが、調速機シーブ18に接続してもよい。
次に、図14はこの発明の実施の形態2によるエレベータ装置の要部を示す構成図である。実施の形態2では、実施の形態1の回転円盤28、回転軸29及びラチェット機構30の代わりに、慣性質量付加機構としての付加質量体41が昇降路1内の下部速度変化区間(昇降路1の下部領域)、即ち最下階から定格速度に到達するまでの領域に設置されている。また、作動レバー16と調速機機構100とを連結する連結部23には、第1の接触部材38が設けられている。
次に、図17はこの発明の実施の形態3によるエレベータ装置の要部を示す構成図である。実施の形態3では、実施の形態2の付加質量体41の代わりに、抵抗力付加機構としてのダンパ機構42が昇降路1内の下部速度変化区間に設けられている。
次に、図20はこの発明の実施の形態4によるエレベータ装置の要部を示す構成図である。実施の形態4では、実施の形態2の付加質量体41の代わりに、昇降路1内の下部速度変化区間に摩擦ガイドレール49が設置されている。摩擦ガイドレール49は、かごガイドレール11に平行に立てられている。
また、この発明は、機械室2を持たない機械室レスエレベータの他、種々のタイプのエレベータ装置に適用できる。
Claims (8)
- 昇降路内を昇降するかご、
前記かごを吊り下げる懸架体、
前記かごに搭載されている非常止め装置、
前記非常止め装置に設けられており、前記非常止め装置を作動させる作動レバー、
調速機シーブと、前記調速機シーブに対して上下方向に間隔をおいて配置されている張車と、前記調速機シーブ及び前記張車に巻かれており、かつ前記作動レバーに接続されている調速機ロープとを有している調速機機構、及び
前記かごが、前記昇降路のうち、少なくとも最下階から定格速度に到達するまでの領域である下部速度変化区間を下降するときに前記調速機機構に追加の慣性質量を付加し、前記かごの上昇時には慣性質量の付加を解除する慣性質量付加機構
を備えているエレベータ装置。 - 前記慣性質量付加機構は、回転円盤と、前記調速機シーブ又は前記張車と前記回転円盤との間に設けられているラチェット機構とを有しており、
前記ラチェット機構は、前記かごの下降時のみ前記調速機機構の運動を前記回転円盤に伝達し前記回転円盤を回転させる請求項1記載のエレベータ装置。 - 前記慣性質量付加機構は、前記回転円盤とは別の回転円盤である追加円盤と、前記回転円盤及び前記追加円盤に巻かれ、前記回転円盤の回転を前記追加円盤に伝達するループ状の伝達体とをさらに有している請求項2記載のエレベータ装置。
- 前記慣性質量付加機構は、下部回転円盤と、前記下部回転円盤の真上に配置されている上部回転円盤と、前記下部回転円盤及び前記上部回転円盤に巻かれたループ状の伝達体とを有する付加質量体であり、
前記付加質量体は、前記かごが前記下部速度変化区間を下降するときに前記調速機機構と一体となって運動し、前記かごの上昇時には前記調速機機構から切り離される請求項1記載のエレベータ装置。 - 昇降路内を昇降するかご、
前記かごを吊り下げる懸架体、
前記かごに搭載されている非常止め装置、
前記非常止め装置に設けられており、前記非常止め装置を作動させる作動レバー、
調速機シーブと、前記調速機シーブに対して上下方向に間隔をおいて配置されている張車と、前記調速機シーブ及び前記張車に巻かれており、かつ前記作動レバーに接続されている調速機ロープとを有している調速機機構、及び
前記かごが、前記昇降路のうち、少なくとも最下階から定格速度に到達するまでの領域である下部速度変化区間を下降するときに前記調速機機構の運動に抵抗力を付加し、前記かごの上昇時には抵抗力を減少又は解除する抵抗力付加機構
を備えているエレベータ装置。 - 前記抵抗力付加機構は、ばね支持されたプランジャを有するダンパ機構であり、
前記プランジャは、前記かごが前記下部速度変化区間を下降するときに前記調速機機構に抵抗力を加えながら下降し、前記かごの上昇時には前記調速機機構から切り離される請求項5記載のエレベータ装置。 - 前記抵抗力付加機構は、前記昇降路内の前記下部速度変化区間に設置された摩擦ガイドレールと、前記調速機ロープと前記作動レバーとの連結部に設けられたクサビ機構とを有する摩擦機構であり、
前記クサビ機構は、
前記摩擦ガイドレールと接触することで摩擦力を受ける摩擦クサビを有しており、
前記かごが前記下部速度変化区間を下降するときに前記摩擦クサビが受ける摩擦力よりも、前記かごが前記下部速度変化区間を上昇するときに前記摩擦クサビが受ける摩擦力が小さくなるように構成されている請求項5記載のエレベータ装置。 - 昇降路内を昇降するかご、
前記かごを吊り下げる懸架体、
前記かごに搭載されている非常止め装置、
前記非常止め装置に設けられており、前記非常止め装置を作動させる作動レバー、
調速機シーブと、前記調速機シーブに対して上下方向に間隔をおいて配置されている張車と、前記調速機シーブ及び前記張車に巻かれており、かつ前記作動レバーに接続されている調速機ロープとを有している調速機機構、及び
前記かごが前記昇降路を下降するときに前記調速機機構に追加の慣性質量を付加し、前記かごの上昇時には慣性質量の付加を解除する慣性質量付加機構
を備えているエレベータ装置。
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JPH06183660A (ja) * | 1992-12-04 | 1994-07-05 | Otis Elevator Co | エレベーターの調速機誤動作防止装置 |
WO2006046284A1 (ja) * | 2004-10-27 | 2006-05-04 | Mitsubishi Denki Kabushiki Kaisha | エレベータの非常停止装置 |
JP2012062124A (ja) * | 2010-09-14 | 2012-03-29 | Hitachi Ltd | ダブルデッキエレベーター装置 |
JP2012162374A (ja) * | 2011-02-09 | 2012-08-30 | Hitachi Ltd | 非常止め装置及びそれを備えたエレベーター装置 |
WO2013190869A1 (ja) * | 2012-06-19 | 2013-12-27 | 三菱電機株式会社 | エレベータ装置 |
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JP2007030999A (ja) * | 2005-07-22 | 2007-02-08 | Hitachi Ltd | エレベーター装置の安全装置およびエレベーター装置の運転方法 |
KR20130122663A (ko) * | 2011-04-01 | 2013-11-07 | 미쓰비시덴키 가부시키가이샤 | 엘리베이터 장치 |
JP5726374B2 (ja) * | 2012-04-16 | 2015-05-27 | 三菱電機株式会社 | エレベータ装置 |
JP5809746B2 (ja) * | 2012-05-21 | 2015-11-11 | 株式会社日立製作所 | エレベーター装置 |
JP5845317B2 (ja) * | 2014-06-16 | 2016-01-20 | 東芝エレベータ株式会社 | エレベータの調速機 |
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JPH06183660A (ja) * | 1992-12-04 | 1994-07-05 | Otis Elevator Co | エレベーターの調速機誤動作防止装置 |
WO2006046284A1 (ja) * | 2004-10-27 | 2006-05-04 | Mitsubishi Denki Kabushiki Kaisha | エレベータの非常停止装置 |
JP2012062124A (ja) * | 2010-09-14 | 2012-03-29 | Hitachi Ltd | ダブルデッキエレベーター装置 |
JP2012162374A (ja) * | 2011-02-09 | 2012-08-30 | Hitachi Ltd | 非常止め装置及びそれを備えたエレベーター装置 |
WO2013190869A1 (ja) * | 2012-06-19 | 2013-12-27 | 三菱電機株式会社 | エレベータ装置 |
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KR101928678B1 (ko) | 2018-12-12 |
DE112015004314B4 (de) | 2022-01-13 |
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