WO2015173914A1 - エレベータ装置 - Google Patents
エレベータ装置 Download PDFInfo
- Publication number
- WO2015173914A1 WO2015173914A1 PCT/JP2014/062848 JP2014062848W WO2015173914A1 WO 2015173914 A1 WO2015173914 A1 WO 2015173914A1 JP 2014062848 W JP2014062848 W JP 2014062848W WO 2015173914 A1 WO2015173914 A1 WO 2015173914A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever
- emergency stop
- stop device
- governor rope
- elastic body
- 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
- B66B5/04—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
- B66B5/04—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
-
- 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
- B66B5/22—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 linearly-movable wedges
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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
- This invention relates to an elevator apparatus in which emergency stop devices are mounted on the top and bottom of a car.
- an upper braking mechanism is housed in the upper frame of the car, and a lower braking mechanism is housed in the lower frame of the car.
- the governor rope is coupled to the lever of the upper braking mechanism.
- the lower brake mechanism is connected to the upper brake mechanism via a connecting rod. For this reason, when the governor rope is gripped and the lever of the upper braking mechanism is operated, the lever of the lower braking mechanism is also operated, and the upper braking mechanism and the lower braking mechanism operate simultaneously. Thereby, an upper brake mechanism and a lower brake mechanism can be reduced in size (for example, refer patent document 1).
- the lengths of the connecting rods need to be adjusted accurately on site in order to operate the upper braking mechanism and the lower braking mechanism at the same time. Is low.
- the present invention has been made in order to solve the above-described problems, and can improve the workability on site and can operate the lower emergency stop device and the upper emergency stop device more reliably.
- the purpose is to obtain.
- the elevator apparatus includes a lift body, a lower emergency stop device mounted on the lower part of the lift body, an upper emergency stop device mounted on the upper part of the lift body, and laid in the hoistway. It is provided in the governor rope and lower emergency stop device that circulates as the elevator moves up and down, and is provided in the lower lift lever and upper emergency stop device that operates the lower emergency stop device by being pulled up by the governor rope.
- the upper lifting lever that operates the upper emergency stop device by being pulled up by the governor rope and the presence or absence of traveling at an excessive speed of the lifting body are monitored, and the traveling speed of the lifting body reaches the excessive speed.
- the elevator apparatus is laid in a lifting body, a lower emergency stop device mounted on the lower part of the lifting body, an upper emergency stop device mounted on the upper part of the lifting body, and the hoistway, Lower lift lever, upper emergency stop device, which is provided on the governor rope and lower emergency stop device that circulates as the elevator moves up and down, and operates the lower emergency stop device when pulled up by the governor rope.
- the upper lifting lever that activates the upper emergency stop device by being pulled up by the governor rope and the presence or absence of traveling at an excessive speed of the lifting body are monitored, and the traveling speed of the lifting body is excessive.
- a speed governor that grips the speed governor rope and activates the lower emergency stop device and the upper emergency stop device and includes the speed governor rope, the lower lifting lever, and the upper lifting lever.
- An elastic body is provided between the upper lifting lever and the upper lifting lever until the lower emergency stop device operates, and the upper lifting lever until the lower emergency stop device operates. Are different in advance.
- the elevator device of the present invention can operate the lower emergency stop device and the upper emergency stop device more reliably while improving the workability on site.
- FIG. 4 is a sectional view taken along line IV-IV in FIG. 3.
- FIG. 6 is a sectional view taken along line VI-VI in FIG. 5.
- FIG. 5 shows the cage
- FIG. 10 is a front view showing a state where the upper pull-up lever of FIG. It is a front view which shows the state which the lower raising lever of FIG. 10 rotated to the operation position. It is a front view which shows the 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 is installed in the machine room 2.
- 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 (not shown) that brakes the rotation of the driving sheave 6.
- a suspension body 7 is wound around the driving sheave 6 and the deflecting wheel 4. As the suspension body 7, a plurality of ropes or a plurality of belts are used.
- a car 8, which is a lifting body, is connected to the first end of the suspension body 7.
- a counterweight 9 is connected to the second end of the suspension body 7.
- the car 8 and the counterweight 9 are suspended in the hoistway 1 by the suspension body 7 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 8 up and down at a set speed by controlling the rotation of the hoisting machine 3.
- a pair of car guide rails 10 that guide the raising and lowering of the car 8 and a pair of counterweight guide rails 11 that guide the raising and lowering of the counterweight 9 are installed.
- a car buffer 12 and a counterweight buffer 13 are installed at the bottom of the hoistway 1.
- the car shock absorber 12 reduces the impact of the car 8 colliding with the bottom of the hoistway 1.
- the counterweight buffer 13 reduces the impact of the collision of the counterweight 9 on the bottom of the hoistway 1.
- a lower emergency stop device 14 is mounted on the lower part of the car 8.
- An upper emergency stop device 15 is mounted on the upper portion of the car 8.
- the lower safety device 14 and the upper safety device 15 grip the car guide rail 10 to stop the car 8 in an emergency.
- the lower safety device 14 and the upper safety device 15 generate the same braking force.
- the lower emergency stop device 14 is provided with a lower lifting lever 16 for operating the lower emergency stop device 14.
- the upper emergency stop device 15 is provided with an upper pull-up lever 17 that operates the upper emergency stop device 15.
- the machine room 2 is provided with a governor 18 that monitors whether the car 8 is traveling at an excessive speed.
- the governor 18 includes a governor sheave 19, an overspeed detection switch, a rope catch, and the like.
- a governor rope 20 is wound around the governor sheave 19.
- the governor rope 20 is laid in a ring shape in the hoistway 1 and is connected to the lower lifting lever 16 and the upper lifting lever 17. That is, the governor rope 20 is connected to the car 8 via the lower emergency stop device 14 and the upper emergency stop device 15.
- the governor rope 20 is wound around a tension wheel 21 arranged at the lower part of the hoistway 1.
- the governor rope 20 circulates and the governor sheave 19 rotates at a rotational speed corresponding to the traveling speed of the car 8.
- the governor 18 mechanically detects that the traveling speed of the car 8 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 8 reaches the first overspeed Vos, the overspeed detection switch is operated. Thereby, the electric power feeding to the hoisting machine 3 is interrupted
- the speed governor 18, the speed governor rope 20, and the tension wheel 21 are arranged behind the car 8 in the front-rear direction of the car 8.
- the machine rope 20 is arranged to pass right next to the car 8.
- FIG. 2 is an enlarged front view showing the car 8 of FIG.
- the lower pull-up lever 16 can rotate around the lower pull-up lever shaft 22.
- the lower emergency stop device 14 is operated by rotating the lower pull-up lever 16 counterclockwise (operation direction) in FIG.
- the upper lifting lever 17 is rotatable about the upper lifting lever shaft 23.
- the upper emergency stop device 15 is operated by rotating the upper pull-up lever 17 in the counterclockwise direction (operation direction) in FIG.
- a lower stopper bolt 31 is attached to the lower part of the car 8 as a lower stopper that restricts rotation in the direction opposite to the operation direction of the lower pull-up lever 16 (clockwise in FIG. 2).
- An upper stopper bolt 32 as an upper stopper for restricting rotation in the direction opposite to the operation direction of the upper pull-up lever 17 (clockwise direction in FIG. 2) is attached to the upper portion of the car 8.
- a lower rope fixing member (block) 33 and an upper rope fixing member (block) 34 are fixed to the governor rope 20.
- the upper rope fixing member 34 is fixed to the governor rope 20 above the lower rope fixing member 33.
- the lower rope fixing member 33 is provided with a lower support arm 33a that protrudes horizontally.
- the upper rope fixing member 34 is provided with an upper support arm 34a that protrudes horizontally.
- a lower elastic body 35 that can expand and contract in the vertical direction is provided between the lower support arm 33a and the lower pull-up lever 16, a lower elastic body 35 that can expand and contract in the vertical direction is provided.
- the lower pull-up lever 16 is connected to the governor rope 20 via the lower elastic body 35 and the lower rope fixing member 33.
- an upper elastic body 36 that can be expanded and contracted in the vertical direction is provided.
- the upper pull-up lever 17 is connected to the governor rope 20 via the upper elastic body 36 and the upper rope fixing member 34.
- the lower elastic body 35 and the upper elastic body 36 can be elastically deformed in the vertical direction.
- springs such as a coil spring, are used, for example.
- FIG. 3 is an enlarged front view showing a main part of the lower safety device 14 of FIG. 1, and FIG. 4 is a sectional view taken along the line IV-IV of FIG.
- the lower emergency stop device 14 includes a guide body 24 in which a pair of tapered guide surfaces 24 a and 24 b is formed, and a pair of wedges 25 a and 25 b disposed inside the guide body 24. The wedges 25 a and 25 b slide along the guide surfaces 24 a and 24 b in conjunction with the rotation of the lower pull-up lever 16.
- FIG. 5 is a front view showing a state when the lower safety device 14 of FIG. 3 is in operation
- FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG.
- the wedges 25a and 25b are in a lowered position, and the middle portion of the lower lifting lever 16 is placed on the upper end portion of the lower stopper bolt 31.
- the rising distance e (FIG. 4) until the wedges 25a and 25b completely bite is determined.
- the wedges 25a and 25b are lifted by the lift distance e, they completely bite and cannot move any further, so that the lower pull-up lever 16 cannot rotate from its position (actuation position) in the pull-up direction.
- the configuration and operation of the upper safety device 15 are the same as those of the lower safety device 14, and the upper safety device 15 is also provided with a guide body 24 and wedges 25a and 25b.
- the lower elastic body 35 and the upper elastic body 36 have sufficiently high rigidity with respect to the force that pulls up the lower pull-up lever 16 and the upper pull-up lever 17, and the wedges 25a and 25b are connected to the guide body 24 and the car guide rail. 10 and the force for operating the lower safety device 14 and the upper safety device 15 is not elastically deformed.
- the lower elastic body 35 and the upper elastic body 36 are configured so that the car 8 is in contact with the governor rope 20 in a state where only one of the lower safety device 14 and the upper safety device 15 is activated when the car 8 is dropped. Furthermore, it is elastically deformed against the force of dropping.
- the lower elastic body 35 is interposed between the lower lifting lever 16 and the governor rope 20, and the upper elastic body 36 is interposed between the upper lifting lever 17 and the governor rope 20. Therefore, even if the operation timing of the lower emergency stop device 14 and the upper emergency stop device 15 is shifted, the lower elastic body 35 or the upper elastic body 36 is contracted, so that both the emergency stop devices 14 and 15 are moved. It can be operated more reliably.
- the lower pull-up lever 16 is connected to the governor rope 20 via the lower elastic body 35 and the lower rope fixing member 33, and the upper pull-up lever 17 connects the upper elastic body 36 and the upper rope fixing member 34.
- the same configuration can be applied to products having different distances between the lower safety device 14 and the upper safety device 15 (design change not required). ).
- FIG. 7 is a front view showing a car 8 of an elevator apparatus according to Embodiment 2 of the present invention.
- the lower lifting lever 41 and the upper lifting lever 42 according to the second embodiment are arranged so as to intersect the governor rope 20. That is, the governor rope 20 passes through the lower pulling lever 41 and the upper pulling lever 42.
- a lower rope fixing member (block) 43 and an upper rope fixing member (block) 44 are fixed to the governor rope 20.
- the upper rope fixing member 44 is fixed to the governor rope 20 above the lower rope fixing member 43.
- the rope fixing members 43 and 44 of the second embodiment are not provided with support arms that project horizontally.
- the lower elastic body 35 is sandwiched between the lower rope fixing member 43 and the lower lifting lever 41.
- the lower pull-up lever 41 is connected to the governor rope 20 via the lower elastic body 35 and the lower rope fixing member 43.
- the upper elastic body 36 is sandwiched between the upper rope fixing member 44 and the upper pulling lever 42.
- the upper pull-up lever 42 is connected to the governor rope 20 via the upper elastic body 36 and the upper rope fixing member 44.
- the lower pull-up lever 41 and the upper pull-up lever 42 are connected to the governor rope 20, and the governor rope 20 moves with the car 8 when the car 8 is raised or lowered (this The same applies to the following embodiments).
- the governor rope 20 passes through the lower elastic body 35 and the upper elastic body 36.
- FIG. 8 is a plan view showing the lower lifting lever 41 and the upper lifting lever 42 of FIG.
- the lower lifting lever 41 is provided with a lower long hole 41a through which the governor rope 20 is passed.
- the upper pull-up lever 42 is provided with an upper long hole 42a through which the governor rope 20 passes. As a result, only the vertical movement is transmitted from the governor rope 20 to the pull-up levers 41 and 42.
- Other configurations are the same as those in the first embodiment.
- FIG. 9 shows the case where the initial angles of the lower lifting lever 41 and the upper lifting lever 42 in FIG. 7 are different (the rotation stroke of the lower lifting lever 41 until the lower emergency stop device 14 is operated, and the upper emergency stop device).
- 15 is a front view showing a case where the rotation stroke of the upper pull-up lever 42 until 15 is activated) is different.
- the initial angle ⁇ 2 of the upper lifting lever 42 is smaller than the initial angle ⁇ 1 of the lower lifting lever 41 ( ⁇ 2 ⁇ 1).
- the wedges 25a and 25b bite between the guide body 24 and the car guide rail 10, but the wedges 25a and 25b of the lower emergency stop device 14 have not bite yet. If the elastic bodies 35 and 36 are not provided, the lower lifting lever 41 does not rotate any further, so the lower emergency stop device 14 does not operate, and the emergency stop devices 14 and 15 as a whole generate a sufficient braking force. Can not do it.
- the upper elastic body 36 contracts from the state of FIG.
- the lower lift lever 41 can be further lifted by moving further upward (moving the car 8 downward relative to the governor rope 20). Then, as shown in FIG. 11, the lower pulling lever 41 can be rotated to the operating position following the upper pulling lever 42.
- the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving the workability on site.
- the governor rope 20 since the elastic bodies 35 and 36 are arranged on the support arms 33a and 34a, a moment is generated in the governor rope 20 when the emergency stop devices 14 and 15 are operated, and the rope fixing member 33 is thus generated. , 34, the governor rope 20 may be deformed.
- Embodiment 2 since only the vertical force is applied to the governor rope 20, the governor rope 20 is not easily deformed when the emergency stop devices 14, 15 are operated, and the emergency stop device 14, 15 can be operated more smoothly.
- the same parts can be used in the lower safety device 14 and the upper safety device 15. Further, the same configuration can be applied to products having different distances between the lower safety device 14 and the upper safety device 15 (design change not required).
- FIG. 12 is a front view showing a car 8 of an elevator apparatus according to Embodiment 3 of the present invention.
- the connecting rod 45 is connected between both ends of the governor rope 20.
- the connecting rod 45 is made of metal, for example.
- the connecting rod 45 is provided with a lower support portion 45a and an upper support portion 45b.
- the lower support part 45 a is disposed below the middle part of the connecting rod 45.
- the upper support part 45 b is disposed above the intermediate part of the connecting rod 45.
- the lower elastic body 35 is disposed on the lower support portion 45a and is sandwiched between the lower pull-up lever 41 and the lower support portion 45a.
- the lower pull-up lever 41 is connected to the governor rope 20 via the lower elastic body 35 and the connecting rod 45.
- the upper elastic body 36 is disposed on the upper support portion 45b and is sandwiched between the upper pull-up lever 42 and the upper support portion 45b.
- the upper pull-up lever 42 is connected to the governor rope 20 via the upper elastic body 36 and the connecting rod 45. Further, the lower elastic body 35 and the upper elastic body 36 surround the connecting rod 45.
- the connecting rod 45 is passed through the lower elongated hole 41a (FIG. 8) of the lower lifting lever 41 and the upper elongated hole 42a (FIG. 8) of the upper lifting lever 42.
- Other configurations are the same as those in the second embodiment.
- FIG. 13 is a front view showing a case where the initial angles of the lower lifting lever 41 and the upper lifting lever 42 in FIG. 12 are different.
- the initial angle ⁇ 1 of the lower lifting lever 41 is smaller than the initial angle ⁇ 2 of the upper lifting lever 42 ( ⁇ 1 ⁇ 2).
- the wedges 25a and 25b bite between the guide body 24 and the car guide rail 10, but the wedges 25a and 25b of the upper emergency stop device 15 have not been bitten yet. If the elastic members 35 and 36 are not provided, the upper pull-up lever 42 does not rotate any further, so the upper emergency stop device 15 does not operate, and the emergency stop devices 14 and 15 as a whole generate a sufficient braking force. Can not do it.
- the lower elastic body 35 contracts from the state of FIG. 14, so that the connecting rod 45 and the governor rope 20 can be connected within the elastic deformation of the lower elastic body 35.
- the upper lifting lever 42 can be further lifted by moving further upward with respect to the car 8. Then, as shown in FIG. 15, the upper pull-up lever 42 can be rotated to the operating position after the lower pull-up lever 41.
- the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving the workability on site.
- the connecting rod 45 prevents the governor rope 20 from being damaged by contact with the pull-up levers 41 and 42 and the elastic bodies 35 and 36 in addition to the same effects as those of the second embodiment. Also, the effect that the life can be extended can be obtained.
- FIG. 16 is a front view showing a car 8 of an elevator apparatus according to Embodiment 4 of the present invention.
- a rope fixing member (block) 46 is fixed to the governor rope 20.
- An intermediate connecting member 47 is fixed to the rope fixing member 46.
- the intermediate connecting member 47 has a rod portion 47 a arranged in parallel to the governor rope 20, and a protruding portion 47 b that protrudes horizontally from the intermediate portion of the rod portion 47 a and is connected to the rope fixing member 46.
- a rod-like lower connecting member 48 is rotatably connected to the lower pull-up lever 16.
- the lower elastic body 35 is connected between the intermediate connecting member 47 and the lower connecting member 48.
- a rod-like upper connecting member 49 is rotatably connected to the upper pulling lever 17.
- the upper elastic body 36 is connected between the intermediate connecting member 47 and the upper connecting member 49.
- the lower pull-up lever 16 is connected to the governor rope 20 via a lower connecting member 48, a lower elastic body 35 and an intermediate connecting member 47.
- the upper pull-up lever 17 is connected to the governor rope 20 through the upper connecting member 49, the upper elastic body 36 and the intermediate connecting member 47.
- the lower connecting member 48, the lower elastic body 35, the rod portion 47 a, the upper elastic body 36, and the upper connecting member 49 are arranged on a straight line parallel to the governor rope 20.
- Other configurations are the same as those in the first embodiment.
- FIG. 17 is a front view showing a state where the lower safety device 14 and the upper safety device 15 of FIG. 16 are activated.
- the lower elastic body 14 and the upper elastic device 36 and the upper elastic body 36 are contracted, so that even if the initial angles of the lower lifting lever 16 and the upper lifting lever 17 differ, Both emergency stop devices 15 can be activated.
- the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving the workability on site.
- the fixing portion with the governor rope 20 is only required at one place, and labor saving of installation work can be achieved.
- the rod portion 47a is extended vertically, and the lower elastic body 35 is connected between the lower end portion of the rod portion 47a and the lower pull-up lever 16, or the upper end portion of the rod portion 47a and the upper pull-up lever 17 are connected.
- the upper elastic body 36 may be connected between them. Thereby, the lower connecting member 48 and the upper connecting member 49 can be omitted.
- FIG. 18 is a front view showing a car 8 of an elevator apparatus according to Embodiment 5 of the present invention.
- a rope fixing member (block) 51 is fixed to the governor rope 20.
- the lower pulling lever 41 is rotatably connected to the rope fixing member 51.
- the governor rope 20 is passed through the lower long hole 41 a (FIG. 8) of the lower lifting lever 41.
- a lower end portion of a rod-like lower connecting member 52 is rotatably connected to an intermediate portion of the lower lifting lever 41.
- the upper pull-up lever 17 is rotatably connected to the upper end portion of a bar-shaped upper connecting member 53.
- an elastic body 54 that can be expanded and contracted in the vertical direction is connected.
- the lower pull-up lever 41 is connected to the governor rope 20 via a rope fixing member 51.
- the upper pull-up lever 17 is connected to the governor rope 20 through the upper connecting member 53, the elastic body 54, the lower connecting member 52, the lower pull-up lever 41, and the rope fixing member 51. That is, in the fifth embodiment, the elastic body 54 is provided between the upper pull-up lever 17 and the governor rope 20.
- the initial angles of the lower lifting lever 41 and the upper lifting lever 17 are different in advance at the factory. That is, the rotation stroke of the lower lifting lever 41 until the lower emergency stop device 14 is activated differs from the rotation stroke of the upper lifting lever until the upper emergency stop device 15 is activated in advance.
- the initial angle ⁇ 2 of the upper lifting lever 17 is smaller than the initial angle ⁇ 1 of the lower lifting lever 41 ( ⁇ 2 ⁇ 1).
- the elastic body 54 has a sufficiently high rigidity with respect to the force that pulls up the lower lifting lever 41 and the upper lifting lever 17, and the wedges 25 a and 25 b are completely disposed between the guide body 24 and the car guide rail 10.
- the elastic force is not elastically deformed by the force for causing the lower emergency stop device 14 and the upper emergency stop device 15 to be actuated.
- the elastic body 54 controls the speed of the car 8 in a state where only one of the lower safety device 14 and the upper safety device 15 (the upper safety device 15 in the fifth embodiment) is operating when the car 8 is dropped. It is elastically deformed with respect to the force of further dropping against the machine rope 20.
- Other configurations are the same as those in the first embodiment.
- the governor rope 20 is moved further upward with respect to the car 8 within a range in which the elastic body 54 can be elastically deformed (the car 8 is moved downward with respect to the governor rope 20).
- the lower lifting lever 41 can be further lifted. Then, as shown in FIG. 20, the lower pulling lever 41 can be rotated to the operating position after the upper pulling lever 17.
- the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving the workability on site.
- the elastic body 54 can be made one. Furthermore, the speed governor rope 20 is not easily deformed when the emergency stop devices 14 and 15 are operated, and the emergency stop devices 14 and 15 can be operated more smoothly. Furthermore, the fixing part with the governor rope 20 is only required at one place, and labor saving of the installation work can be achieved.
- the lower connecting member 52 or the upper connecting member 53 may be omitted, and the elastic body 54 may be directly connected to the lower pulling lever 41 or the upper pulling lever 17.
- FIG. 21 is a front view showing a car 8 of an elevator apparatus according to Embodiment 6 of the present invention.
- the upper pull-up lever 42 is rotatably connected to the rope fixing member 51.
- the governor rope 20 is passed through the upper elongated hole 42 a of the upper lifting lever 42.
- the lower pull-up lever 16 is rotatably connected to the lower end of a rod-like lower connecting member 52.
- An upper end portion of a bar-like upper connecting member 53 is rotatably connected to an intermediate portion of the upper pull-up lever 42.
- the upper pull-up lever 42 is connected to the governor rope 20 through the fixing member 51.
- the lower pull-up lever 16 is connected to the governor rope 20 via the lower connecting member 52, the elastic body 54, the upper connecting member 53, the upper pull-up lever 42 and the rope fixing member 51. That is, in the sixth embodiment, the elastic body 54 is provided between the lower lifting lever 16 and the governor rope 20.
- the initial angle ⁇ 1 of the lower lifting lever 16 is smaller than the initial angle ⁇ 2 of the upper lifting lever 42 ( ⁇ 1 ⁇ 2).
- Other configurations are the same as those of the fifth embodiment.
- FIG. 22 is a front view showing a car 8 of an elevator apparatus according to Embodiment 7 of the present invention.
- the speed governor rope 20 includes a lower rope fixing member 43 as a lower support portion that is a support portion corresponding to the lower pull-up lever 41 and an upper portion as an upper support portion that is a support portion that corresponds to the upper pull-up lever 42.
- the rope fixing member 44 is fixed.
- the elastic body 54 surrounds the governor rope 20 and is sandwiched between the lower rope fixing member 43 and the lower lifting lever 41.
- the lower pull-up lever 41 is connected to the governor rope 20 via an elastic body 54 and a lower rope fixing member 43. That is, in the seventh embodiment, the elastic body 54 is provided between the lower pull-up lever 41 and the governor rope 20.
- the upper pulling lever 42 is rotatably connected to the upper rope fixing member 44.
- the upper pull-up lever 42 is connected to the governor rope 20 via the upper rope fixing member 44.
- Other configurations are the same as those of the sixth embodiment.
- the upper elastic body 36 is removed from the configuration of the second embodiment, and the initial angle ⁇ 1 of the lower lifting lever 41 is made smaller than the initial angle ⁇ 2 of the upper lifting lever 42 ( ⁇ 1 ⁇ 2).
- the governor rope 20 is moved further upward with respect to the car 8 within a range in which the elastic body 54 can be elastically deformed (the car 8 is moved downward with respect to the governor rope 20).
- the upper pull-up lever 42 can be further lifted. Then, as shown in FIG. 24, the upper pulling lever 42 can be rotated to the operating position after the lower pulling lever 41.
- the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving the workability on site.
- the governor rope 20 is not easily deformed, can save space in the horizontal direction, and the distance between the lower emergency stop device 14 and the upper emergency stop device 15 is different.
- the same configuration can be applied to products (design change is not required).
- the elastic body 54 can be made one, and the cost and weight can be reduced.
- FIG. 25 is a front view showing a car 8 of an elevator apparatus according to Embodiment 8 of the present invention.
- the elastic body 54 of the seventh embodiment is disposed between the upper rope fixing member 44 and the upper pulling lever 42, and the lower pulling lever 41 is rotatably connected to the lower rope fixing member 43.
- the initial angle ⁇ 2 of the upper lifting lever 42 is smaller than the initial angle ⁇ 1 of the lower lifting lever 41 ( ⁇ 2 ⁇ 1). That is, in the eighth embodiment, the elastic body 54 is provided between the upper pull-up lever 42 and the governor rope 20.
- Other configurations are the same as those of the seventh embodiment.
- FIG. 26 is a front view showing a car 8 of an elevator apparatus according to Embodiment 9 of the present invention.
- a connecting rod 45 is connected between both ends of the governor rope 20.
- the elastic body 54 is disposed on the upper support portion 45 b and is sandwiched between the upper support portion 45 b and the upper lifting lever 42.
- the lower pull-up lever 41 is rotatably connected to the lower support portion 45a.
- the lower lifting lever 41 is connected to the governor rope 20 via a connecting rod 45.
- the upper pull-up lever 42 is connected to the governor rope 20 via an elastic body 54 and a connecting rod 45. That is, in the ninth embodiment, the elastic body 54 is provided between the upper pull-up lever 42 and the governor rope 20.
- the initial angle ⁇ 2 of the upper lifting lever 42 is smaller than the initial angle ⁇ 1 of the lower lifting lever 41 ( ⁇ 2 ⁇ 1).
- Other configurations are the same as those in the first embodiment.
- the lower elastic body 35 is removed from the configuration of the third embodiment (FIG. 12), and the initial angle ⁇ 2 of the upper lifting lever 42 is made smaller than the initial angle ⁇ 1 of the lower lifting lever 41. Is.
- the lower emergency stop device 14 and the upper emergency stop device 15 can be more reliably operated while improving workability on site, as in the first embodiment.
- the use of the connecting rod 45 prevents the governor rope 20 from being damaged due to contact with the pull-up levers 41 and 42 and the elastic body 54, thereby extending the service life. Can be planned.
- FIG. 27 is a front view showing a car 8 of an elevator apparatus according to Embodiment 10 of the present invention.
- the elastic body 54 is disposed on the lower support portion 45 a and is sandwiched between the lower support portion 45 a and the lower pull-up lever 41.
- the upper pull-up lever 42 is rotatably connected to the upper support portion 45b.
- the upper pull-up lever 42 is connected to the governor rope 20 via a connecting rod 45.
- the lower pull-up lever 41 is connected to the governor rope 20 via an elastic body 54 and a connecting rod 45. That is, in the tenth embodiment, the elastic body 54 is provided between the lower pull-up lever 41 and the governor rope 20.
- the initial angle ⁇ 1 of the lower lift lever 41 is smaller than the initial angle ⁇ 2 of the upper lift lever 42 ( ⁇ 1 ⁇ 2).
- Other configurations are the same as those of the ninth embodiment.
- the lifting body may be a counterweight. That is, the present invention can also be applied to the case where emergency stop devices are mounted above and below the counterweight. Further, the layout and roping method of the elevator apparatus as a whole are not limited to the example of FIG. For example, the present invention can be applied to a 2: 1 roping elevator apparatus. Further, for example, the position and number of hoisting machines are not limited to the example of FIG. Furthermore, 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
また、この発明に係るエレベータ装置は、昇降体、昇降体の下部に搭載されている下部非常止め装置、昇降体の上部に搭載されている上部非常止め装置、昇降路内に敷設されており、昇降体の昇降に伴って循環移動する調速機ロープ、下部非常止め装置に設けられており、調速機ロープにより引き上げられることによって下部非常止め装置を作動させる下部引上レバー、上部非常止め装置に設けられており、調速機ロープにより引き上げられることによって上部非常止め装置を作動させる上部引上レバー、及び昇降体の過大速度での走行の有無を監視し、昇降体の走行速度が過大速度に達すると、調速機ロープを把持して下部非常止め装置及び上部非常止め装置を作動させる調速機を備え、調速機ロープと、下部引上レバー及び上部引上レバーのいずれか一方との間に弾性体が設けられており、下部非常止め装置が作動するまでの下部引上レバーの回転ストロークと上部非常止め装置が作動するまでの上部引上レバーの回転ストロークとが予め異なっている。
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、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(図示せず)を有している。
次に、図7はこの発明の実施の形態2によるエレベータ装置のかご8を示す正面図である。実施の形態2の下部引上レバー41及び上部引上レバー42は、調速機ロープ20と交差するように配置されている。即ち、調速機ロープ20は、下部引上レバー41及び上部引上レバー42を貫通している。
また、下部非常止め装置14と上部非常止め装置15との間の距離が異なる製品に対しても、同じ構成を適用することができる(設計変更不要)。
次に、図12はこの発明の実施の形態3によるエレベータ装置のかご8を示す正面図である。実施の形態3では、調速機ロープ20の両端部間に連結棒45が連結されている。連結棒45は、例えば金属により構成されている。連結棒45には、下部支持部45a及び上部支持部45bが設けられている。
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かご8を示す正面図である。実施の形態4では、調速機ロープ20にロープ固定部材(ブロック)46が固定されている。ロープ固定部材46には、中間連結部材47が固定されている。中間連結部材47は、調速機ロープ20に平行に配置されたロッド部47aと、ロッド部47aの中間部から水平に突出しロープ固定部材46に接続された突出部47bとを有している。
次に、図18はこの発明の実施の形態5によるエレベータ装置のかご8を示す正面図である。調速機ロープ20には、ロープ固定部材(ブロック)51が固定されている。下部引上レバー41は、ロープ固定部材51に回転自在に接続されている。調速機ロープ20は、下部引上レバー41の下部長孔41a(図8)に通されている。
さらに、非常止め装置14,15の作動時に調速機ロープ20が変形しにくく、非常止め装置14,15をよりスムーズに作動させることができる。
さらにまた、調速機ロープ20との固定部が一箇所で済み、据付作業の省力化を図ることができる。
次に、図21はこの発明の実施の形態6によるエレベータ装置のかご8を示す正面図である。上部引上レバー42は、ロープ固定部材51に回転自在に接続されている。調速機ロープ20は、上部引上レバー42の上部長孔42aに通されている。
また、下部連結部材52及び上部連結部材53に引張荷重のみが作用しないため、連結部材52,53の強度を低減することができる。これにより、連結部材52,53の設計を容易にするとともに、コストを低減することができる。
次に、図22はこの発明の実施の形態7によるエレベータ装置のかご8を示す正面図である。調速機ロープ20には、下部引上レバー41に対応する支持部である下部支持部としての下部ロープ固定部材43と、上部引上レバー42に対応する支持部である上部支持部としての上部ロープ固定部材44とが固定されている。
次に、図25はこの発明の実施の形態8によるエレベータ装置のかご8を示す正面図である。実施の形態8は、実施の形態7の弾性体54を上部ロープ固定部材44と上部引上レバー42との間に配置し、下部引上レバー41を下部ロープ固定部材43に回転自在に接続し、上部引上レバー42の初期角度θ2を下部引上レバー41の初期角度θ1よりも小さくしたものである(θ2<θ1)。即ち、実施の形態8では、上部引上レバー42と調速機ロープ20との間に弾性体54が設けられている。他の構成は、実施の形態7と同様である。
次に、図26はこの発明の実施の形態9によるエレベータ装置のかご8を示す正面図である。実施の形態9では、調速機ロープ20の両端部間に連結棒45が連結されている。弾性体54は、上部支持部45b上に配置されており、上部支持部45bと上部引上レバー42との間に挟まれている。下部引上レバー41は、下部支持部45aに回転自在に接続されている。
次に、図27はこの発明の実施の形態10によるエレベータ装置のかご8を示す正面図である。実施の形態10では、弾性体54が、下部支持部45a上に配置されており、下部支持部45aと下部引上レバー41との間に挟まれている。上部引上レバー42は、上部支持部45bに回転自在に接続されている。
さらに、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。
さらにまた、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 (10)
- 昇降体、
前記昇降体の下部に搭載されている下部非常止め装置、
前記昇降体の上部に搭載されている上部非常止め装置、
前記昇降路内に敷設されており、前記昇降体の昇降に伴って循環移動する調速機ロープ、
前記下部非常止め装置に設けられており、前記調速機ロープにより引き上げられることによって前記下部非常止め装置を作動させる下部引上レバー、
前記上部非常止め装置に設けられており、前記調速機ロープにより引き上げられることによって前記上部非常止め装置を作動させる上部引上レバー、及び
前記昇降体の過大速度での走行の有無を監視し、前記昇降体の走行速度が過大速度に達すると、前記調速機ロープを把持して前記下部非常止め装置及び前記上部非常止め装置を作動させる調速機
を備え、
前記下部引上レバーと前記調速機ロープとの間には、下部弾性体が設けられており、
前記上部引上レバーと前記調速機ロープとの間には、上部弾性体が設けられているエレベータ装置。 - 前記調速機ロープには、下部ロープ固定部材及び上部ロープ固定部材が固定されており、
前記下部弾性体は、前記下部ロープ固定部材と前記下部引上レバーとの間に設けられており、
前記上部弾性体は、前記上部ロープ固定部材と前記上部引上レバーとの間に設けられている請求項1記載のエレベータ装置。 - 前記下部引上レバーには、下部長孔が設けられており、
前記上部引上レバーには、上部長孔が設けられており、
前記調速機ロープは、前記下部長孔及び前記上部長孔に通されている請求項2記載のエレベータ装置。 - 前記調速機ロープの両端部間には、連結棒が連結されており、
前記連結棒には、下部支持部及び上部支持部が設けられており、
前記下部引上レバーには、下部長孔が設けられており、
前記上部引上レバーには、上部長孔が設けられており、
前記連結棒は、前記下部長孔及び前記上部長孔に通されており、
前記下部弾性体は、前記下部支持部と前記下部引上レバーとの間に設けられており、
前記上部弾性体は、前記上部支持部と前記上部引上レバーとの間に設けられている請求項1記載のエレベータ装置。 - 前記調速機ロープには、中間連結部材が接続されており、
前記下部弾性体は、前記中間連結部材と前記下部引上レバーとの間に設けられており、
前記上部弾性体は、前記中間連結部材と前記上部引上レバーとの間に設けられている請求項1記載のエレベータ装置。 - 昇降体、
前記昇降体の下部に搭載されている下部非常止め装置、
前記昇降体の上部に搭載されている上部非常止め装置、
前記昇降路内に敷設されており、前記昇降体の昇降に伴って循環移動する調速機ロープ、
前記下部非常止め装置に設けられており、前記調速機ロープにより引き上げられることによって前記下部非常止め装置を作動させる下部引上レバー、
前記上部非常止め装置に設けられており、前記調速機ロープにより引き上げられることによって前記上部非常止め装置を作動させる上部引上レバー、及び
前記昇降体の過大速度での走行の有無を監視し、前記昇降体の走行速度が過大速度に達すると、前記調速機ロープを把持して前記下部非常止め装置及び前記上部非常止め装置を作動させる調速機
を備え、
前記調速機ロープと、前記下部引上レバー及び前記上部引上レバーのいずれか一方との間に弾性体が設けられており、
前記下部非常止め装置が作動するまでの前記下部引上レバーの回転ストロークと前記上部非常止め装置が作動するまでの前記上部引上レバーの回転ストロークとが予め異なっているエレベータ装置。 - 前記調速機ロープには、ロープ固定部材が固定されており、
前記下部引上レバー及び前記上部引上レバーのいずれか一方は、前記ロープ固定部材に接続されており、
前記下部引上レバー及び前記上部引上レバーは、前記弾性体を介して互いに接続されている請求項6記載のエレベータ装置。 - 前記調速機ロープには、前記下部引上レバーに対応する支持部である下部支持部と、前記上部引上レバーに対応する支持部である上部支持部とが固定されており、
前記下部引上レバー及び前記上部引上レバーのいずれか一方とそれに対応する支持部との間に前記弾性体が設けられており、
前記下部引上レバー及び前記上部引上レバーの他方は、それに対応する支持部に接続されている請求項6記載のエレベータ装置。 - 前記調速機ロープには、前記下部支持部としての下部ロープ固定部材と、前記上部支持部としての上部ロープ固定部材とが固定されている請求項8記載のエレベータ装置。
- 前記調速機ロープの両端部間には、連結棒が連結されており、
前記連結棒には、前記下部支持部及び前記上部支持部が設けられている請求項8記載のエレベータ装置。
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