Elevator and elevator installation method

Abstract

In an elevator according to the present invention, a car apparatus has a car and an emergency stop device provided on the car. A starting device has a starting device body disposed at a higher position than the emergency stop device in a hoistway, and a starting device rope connected to the starting device body. The starting device body has a winder unit that winds up the starting device rope, and a brake unit. The starting device rope is connected to the emergency stop device in a state in which the starting device rope is paid out from the winder unit against the wind-up force of the winder unit. When the car apparatus moves downward, if a car running anomaly occurs in which the car apparatus has an excessive speed or acceleration, the brake unit applies an actuating brake force that actuates the emergency stop device to the starting device rope.

Description

Technical Field

[0001] The present disclosure relates to an elevator in which an emergency stop device is provided in a car, and a method for installing the elevator.

Background Art

[0002] Conventionally, an elevator has been proposed that activates an emergency stop device regardless of a speed governor when a main rope suspending a car breaks. Also, conventionally, a method for installing an elevator in which a wire rope is suspended from the upper part of a hoistway and a car frame is moved vertically along the wire rope in order to install an elevator without a speed governor is known.

[0003] In such a conventional method for installing an elevator, a wire rope is wound around a winch attached to a car frame. A work floor is attached to the car frame. The work floor and the car frame move vertically by winding and unwinding the wire rope by the winch. Thereby, a worker on the work floor can perform work in the hoistway. When the wire rope breaks, the winch is displaced with respect to the car frame by the elastic force of a spring. Thereby, an emergency stop device attached to the car frame activates and the car frame stops (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the conventional elevator installation method disclosed in Patent Document 1, operations such as suspending the wire rope from the upper part of the hoistway, attaching the work floor to the car frame, and winding the wire rope around the winch occur. Therefore, the elevator installation work becomes burdensome.

[0006] The present disclosure has been made to solve the above problems, and an object thereof is to obtain an elevator capable of reducing the burden of installation work and an elevator installation method.

Means for Solving the Problems

[0007] The elevator according to the present disclosure includes a car and an emergency stop device provided in the car, a car device movable in the vertical direction within the hoistway, a starting device main body disposed at a position higher than the emergency stop device within the hoistway, and a starting device including a starting device rope connected to the starting device main body. The starting device main body has a winding portion for winding the starting device rope and a brake portion. The starting device rope is connected to the emergency stop device in a state of being fed out from the winding portion against the winding force of the winding portion. When a car running abnormality occurs in which the speed or acceleration of the car device becomes excessive when the car device moves downward, the brake portion applies an operating braking force for operating the emergency stop device to the starting device rope. In addition, the elevator installation method according to the present disclosure includes an elevator car installation step of movably installing a car device having a car and an emergency stop device provided in the car in the hoistway in the vertical direction, a main body temporary installation step of temporarily installing a starting device having a starting device main body and a starting device rope connected to the starting device main body in the hoistway, a connection step of connecting the starting device rope to the emergency stop device, a car scaffold step of performing work in the hoistway using the car device as a scaffold after the elevator car installation step, the main body temporary installation step, and the connection step, and a removal step of removing the starting device after the car scaffold step. The starting device main body has a winding portion for winding the starting device rope and a brake portion. The starting device rope is fed out from the winding portion against the winding force of the winding portion. In the main body temporary installation step, the starting device main body is temporarily installed at a position higher than the emergency stop device. In the car scaffold step, when the car device moves downward and a car running abnormality occurs in which the speed or acceleration of the car device becomes excessive, the brake portion applies an operating braking force for operating the emergency stop device to the starting device rope.

Effect of the Invention

[0008] According to the elevator and the elevator installation method according to the present disclosure, the burden of the installation work can be reduced.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0010] Hereinafter, embodiments will be described with reference to the drawings. Embodiment 1. FIG. 1 is a side view showing an elevator installed by the elevator installation method according to Embodiment 1. In the figure, a machine room 2 is provided above the hoistway 1. In the machine room 2, a hoisting machine 3, a deflecting sheave 4, a control device 5, and a safety monitoring device 6 are installed.

[0011] The hoisting machine 3 has a hoisting machine body 7 and a drive sheave 8. The drive sheave 8 is provided on the hoisting machine body 7. The hoisting machine body 7 has a hoisting machine motor and a hoisting machine brake. The hoisting machine motor generates a driving force for rotating the drive sheave 8. The hoisting machine brake holds the stationary state of the drive sheave 8. Also, the hoisting machine brake brakes the rotation of the drive sheave 8.

[0012] A suspension body 9 is wound around the drive sheave 8 and the deflecting sheave 4. As the suspension body 9, a plurality of ropes or a plurality of belts are used.

[0013] In the hoistway 1, a car device 10 and a counterweight 11 are provided so as to be movable vertically. A car device 10 is connected to the first end of the suspension body 9. A counterweight 11 is connected to the second end of the suspension body 9. The car device 10 and the counterweight 11 are suspended in the hoistway 1 by the suspension body 9. The car device 10 and the counterweight 11 move vertically in the hoistway 1 by rotating the drive sheave 8. That is, the hoisting machine 3 is a driving device for moving the car device 10 and the counterweight 11 vertically.

[0014] The car device 10 has a car 12 and an emergency stop device 13. The car 12 is provided with a car entrance / exit 121. The car entrance / exit 121 is opened and closed by a pair of car doors 122.

[0015] At each floor of the building, a landing entrance / exit 14 is provided. The hoistway 1 is opened to the landing at each floor through the landing entrance / exit 14. Each landing entrance / exit 14 is opened and closed by a pair of landing doors 15. When the car device 10 stops at a floor, the pair of landing doors 15 interlocks with the pair of car doors 122 to open and close the car entrance / exit 121 and the landing entrance / exit 14.

[0016] The control device 5 controls the hoisting machine 3 to move the car device 10 and the counterweight 11 vertically at a set speed. In the safety monitoring device 6, an excessive speed and an excessive acceleration are preset. The safety monitoring device 6 monitors whether the speed of the car device 10 has reached the excessive speed. That is, the safety monitoring device 6 monitors whether an abnormality in which the speed of the car device 10 becomes excessive, that is, a car running abnormality based on the excessive speed, has occurred. Further, the safety monitoring device 6 monitors whether the acceleration of the car device 10 has reached the excessive acceleration. That is, the safety monitoring device 6 monitors whether an abnormality in which the acceleration of the car device 10 becomes excessive, that is, a car running abnormality based on the excessive acceleration, has occurred. The functions of the control device 5 and the safety monitoring device 6 can be realized by a computer respectively. The speed and acceleration of the car device 10 are detected by a sensor (not shown) provided in the car device 10.

[0017] Inside the hoistway 1, a pair of car guide rails 16 and a pair of counterweight guide rails 17 are installed.

[0018] The pair of car guide rails 16 guides the movement of the car equipment 10. Thereby, the car equipment 10 moves in the vertical direction along the pair of car guide rails 16.

[0019] The pair of counterweight guide rails 17 guides the movement of the counterweight 11. Thereby, the counterweight 11 moves in the vertical direction along the pair of counterweight guide rails 17.

[0020] At the bottom of the hoistway 1, a car buffer 18 and a counterweight buffer 19 are installed. The car buffer 18 is located below the car equipment 10. The counterweight buffer 19 is located below the counterweight 11.

[0021] The emergency stop device 13 is provided at the lower part of the car 12. When the emergency stop device 13 is activated, the emergency stop device 13 grips the pair of car guide rails 16. The emergency stop device 13 grips the pair of car guide rails 16 to bring the car equipment 10 to an emergency stop.

[0022] A compensating rope 21 is suspended from the car equipment 10 and the counterweight 11. The first end of the compensating rope 21 is connected to the lower part of the car 12. The second end of the compensating rope 21 is connected to the lower part of the counterweight 11.

[0023] At the bottom of the hoistway 1, a deflector sheave 20 is provided. The compensating rope 21 is wound around the deflector sheave 20. The balance between the car equipment 10 side and the counterweight 11 side is compensated by the compensating rope 21.

[0024] When the speed of the car equipment 10 reaches an excessive speed, that is, when a car running abnormality based on the excessive speed occurs, the safety monitoring device 6 generates an operation command signal. Also, when the acceleration of the car equipment 10 reaches an excessive acceleration, that is, when a car running abnormality based on the excessive acceleration occurs, the safety monitoring device 6 also generates an operation command signal. The operation command signal is a signal for operating the emergency stop device 13.

[0025] The car equipment 10 is provided with an emergency stop operating device 30. The emergency stop operating device 30 has an operating device main body 31 and a lifting rod 32.

[0026] The operating device main body 31 is provided on the upper part of the car equipment 10. The upper end of the lifting rod 32 is connected to the operating device main body 31. The lower end of the lifting rod 32 is connected to the emergency stop device 13. The operating device main body 31 pulls up the lifting rod 32 with respect to the car equipment 10 in response to the operation command signal from the safety monitoring device 6. Thereby, the emergency stop device 13 operates. The elevator after installation is not provided with a speed regulator. The emergency stop device 13 operates by the emergency stop operating device 30 regardless of the speed regulator.

[0027] For example, when the suspension body 9 breaks, the car equipment 10 moves downward due to gravity. When the car equipment 10 moves downward and a car running abnormality based on an excessive speed or a car running abnormality based on an excessive acceleration occurs, an operation command signal is output from the safety monitoring device 6 to the operating device main body 31. The operating device main body 31 pulls up the lifting rod 32 with respect to the car equipment 10 by receiving the operation command signal from the safety monitoring device 6. Thereby, the emergency stop device 13 operates.

[0028] Figure 2 is a front view showing the schematic configuration of the emergency stop device 13 in Figure 1. The emergency stop device 13 has an operating lever 131, an interlocking lever 132, a connecting rod 133, a first gripping portion 134, and a second gripping portion 135.

[0029] The operating lever 131 is rotatable about the operating lever shaft 131a. The operating lever shaft 131a is supported by the car 12. The lower end of the lifting rod 32 is rotatably connected to the operating lever 131.

[0030] The interlocking lever 132 is rotatable about the interlocking lever shaft 132a. The interlocking lever shaft 132a is supported by the car 12.

[0031] The connecting rod 133 is rotatably connected to each of the operating lever 131 and the interlocking lever 132. The connecting rod 133 transmits the rotation of the operating lever 131 to the interlocking lever 132. Thereby, the interlocking lever 132 rotates in conjunction with the operating lever 131.

[0032] The operating lever 131 is connected to the first gripping portion 134. The first gripping portion 134 grips one of the pair of car guide rails 16 by the rotation of the operating lever 131 caused by the pulling up of the pulling up rod 32.

[0033] The interlocking lever 132 is connected to the second gripping portion 135. The second gripping portion 135 grips the other of the pair of car guide rails 16 by rotating in conjunction with the operating lever 131.

[0034] When the first gripping portion 134 grips one of the car guide rails 16 and the second gripping portion 135 grips the other of the car guide rails 16, the car equipment 10 is brought to an emergency stop.

[0035] Next, the elevator installation method will be described. FIG. 3 is a flowchart showing the installation method for installing the elevator of FIG. 1. The elevator installation method includes a scaffolding assembly step S1, an elevator car installation step S2, a starting device temporary installation step S3, a car scaffolding step S4, and a removal step S5.

[0036] <Scaffolding assembly step S1> When installing an elevator, the scaffolding assembly process S1 is performed. In the scaffolding assembly process S1, a scaffolding is assembled inside the hoistway 1. By assembling the scaffolding inside the hoistway 1, it becomes possible for workers to use the scaffolding to perform work inside the hoistway 1.

[0037] <Car installation process S2> After the scaffolding assembly process S1, the car installation process S2 is performed. In the car installation process S2, the car equipment 10 and the counterweight 11 are provided inside the hoistway 1. A safety stop actuator 30 is attached to the car equipment 10. In the car installation process S2, since power is not supplied to the safety stop actuator 30, the safety stop device 13 cannot be actuated by the safety stop actuator 30.

[0038] In the car installation process S2, a pair of car guide rails 16 and a pair of counterweight guide rails 17 are installed inside the hoistway 1. Also, in the car installation process S2, the hoisting machine 3, the deflector car 4, the control device 5, and the safety monitoring device 6 are installed in the machine room 2. Further, in the car installation process S2, the suspension body 9 is wound around the drive sheave 8 and the deflector car 4, and the suspension body 9 is connected to the car equipment 10 and the counterweight 11. As a result, the car equipment 10 and the counterweight 11 can be moved in the vertical direction by the driving force of the hoisting machine 3. Also, in the car installation process S2, the car buffer 18 and the counterweight buffer 19 are installed at the bottom of the hoistway 1. Further, in the car installation process S2, the tensioner 20 is installed at the bottom of the hoistway 1, and the compensating rope 21 is connected to the car 12 and the counterweight 11.

[0039] <Temporary installation process of starting device S3> After the car installation process S2, the temporary installation process of starting device S3 is performed. In the temporary installation process of starting device S3, a starting device is temporarily installed inside the hoistway 1. The starting device is a device that enables the operation of the safety stop device 13.

[0040] Here, an elevator with a temporary device in which a starting device is temporarily installed inside the hoistway 1 by the temporary installation process of starting device S3 will be described.

[0041] FIG. 4 is a side view showing an elevator with a temporary installation device in which a starting device is temporarily installed in the hoistway 1 by the starting device temporary installation step S3 of FIG. 3. The starting device 40 has a starting device main body 41 and a starting device rope 42. The starting device main body 41 is disposed at a position higher than the emergency stop device 13 in the hoistway 1. The starting device rope 42 is connected to the starting device main body 41. Further, the starting device rope 42 is connected to the emergency stop device 13. In the present embodiment, the starting device rope 42 is directly connected to the operating lever 131 of the emergency stop device 13.

[0042] In the elevator with the temporary installation device, a counterweight (not shown) is placed on the car equipment 10. As a result, the weight on the car equipment 10 side is heavier than the weight on the counterweight 11 side. In a state where the generation of the driving force of the hoisting machine 3 is stopped and the braking force of the hoisting machine brake on the driving sheave 8 is released, the counterweight 11 moves upward and the car equipment 10 moves downward.

[0043] FIG. 5 is a schematic configuration diagram showing the starting device 40 of FIG. 4. The starting device main body 41 has a winding section 43, a brake section 44, and a housing (not shown). The winding section 43 and the brake section 44 are housed inside one housing. The brake section 44 is provided integrally with the winding section 43.

[0044] The winding section 43 winds the starting device rope 42. The winding section 43 has a winding body 431 and a winding spring 432. The winding body 431 is rotatably provided on the housing. The winding body 431 is a cylindrical member. The starting device rope 42 is connected to the winding body 431. The winding body 431 winds the starting device rope 42 by rotating in a first direction with respect to the housing. The winding body 431 pays out the starting device rope 42 by rotating in a direction opposite to the first direction with respect to the housing. The winding spring 432 generates an elastic restoring force that rotates the winding body 431 in the first direction in which the winding body 431 winds the starting device rope 42. Therefore, the winding section 43 generates a winding force for winding the starting device rope 42 around the winding body 431 by the winding spring 432.

[0045] The housing is provided with an opening (not shown). The starting device rope 42 extends out of the housing through the opening of the housing from the winding portion 43. The starting device main body 41 is provided in the hoistway 1 with the opening of the housing facing downward.

[0046] The starting device rope 42 is wound around the winding body 431 by the winding force of the winding portion 43. Further, the starting device rope 42 is paid out from the winding body 431 against the winding force of the winding portion 43. In the present embodiment, the starting device rope 42 is made of metal. As the starting device rope 42, for example, a rope made of a metal wire is used.

[0047] When the cage device 10 moves downward, the starting device rope 42 is paid out from the winding body 431 while the starting device rope 42 is under tension. Further, when the cage device 10 moves upward, the starting device rope 42 is wound around the winding body 431 while the starting device rope 42 is under tension.

[0048] The magnitude of the winding force of the winding portion 43 is smaller than the magnitude of the pulling force at which the emergency stop device 13 operates. Therefore, even if the winding force of the winding portion 43 is applied upward to the operating lever 131 of the emergency stop device 13 via the starting device rope 42, the emergency stop device 13 does not operate.

[0049] The winding body 431 rotates in accordance with the movement of the starting device rope 42 relative to the starting device main body 41. Since the starting device rope 42 is connected to the cage device 10, the winding body 431 rotates in accordance with the movement of the cage device 10. Therefore, the rotational speed of the winding body 431 becomes a speed corresponding to the speed of the cage device 10. Further, the rotational acceleration of the winding body 431 becomes an acceleration corresponding to the acceleration of the cage device 10.

[0050] The brake unit 44 has a rotating part 441 and a braking force generating part 442. The braking force generating part 442 has a fixed part 443 and a pair of movable parts 444. The fixed part 443 is fixed to the housing. The shape of the fixed part 443 is ring-shaped. A plurality of receiving teeth 443a are provided on the inner peripheral part of the fixed part 443. The plurality of receiving teeth 443a are arranged in the circumferential direction of the fixed part 443.

[0051] The rotating part 441 is fixed to the winding body 431. The rotating part 441 rotates integrally with the winding body 431. Accordingly, the rotating part 441 rotates in response to the movement of the starting device rope 42 with respect to the starting device main body 41. The rotation center of the rotating part 441 coincides with the center of the ring-shaped fixed part 443.

[0052] The pair of movable parts 444 are provided on the rotating part 441. Also, the pair of movable parts 444 are arranged inside the fixed part 443. Each of the pair of movable parts 444 is movable with respect to the rotating part 441 in opposite directions by a guide mechanism (not shown). A catching tooth 444a facing the fixed part 443 is provided on each of the pair of movable parts 444.

[0053] Each movable part 444 is movable with respect to the rotating part 441 between a catching position and a release position. The catching position is the position where the catching tooth 444a of the movable part 444 catches on the receiving tooth 443a of the fixed part 443. The release position is the position where the catching tooth 444a of the movable part 444 separates from the receiving tooth 443a of the fixed part 443. An elastic restoring force of a holding spring (not shown) is applied to each movable part 444 toward the release position.

[0054] When the rotating part 441 rotates, a centrifugal force corresponding to the rotation speed of the rotating part 441 is applied to each movable part 444. When the speed of the cage device 10 increases, the rotation speed of the rotating part 441 increases. Therefore, when the rotation speed of the rotating part 441 increases, the centrifugal force applied to each movable part 444 increases. As a result, each movable part 444 moves in a direction approaching the catching position, that is, in the direction of the arrow in FIG. 5, against the elastic restoring force of the holding spring.

[0055] When a car abnormal running based on an excessive speed occurs, at least one of the pair of movable parts 444 reaches the engaged position. As a result, the engaging teeth 444a of the movable part 444 that has reached the engaged position engage with the receiving teeth 443a of the fixed part 443. When the engaging teeth 444a engage with the receiving teeth 443a, the rotations of the rotating part 441 and the winding body 431 are blocked by the fixed part 443. Thereby, an operating braking force for operating the emergency stop device 13 is applied to the starting device rope 42. That is, the braking force generating part 442 generates an operating braking force by the rotation of the rotating part 441 when a car abnormal running based on an excessive speed occurs.

[0056] For example, when the suspension 9 breaks, the car equipment 10 moves downward due to gravity. When the car equipment 10 moves downward and a car abnormal running based on an excessive speed occurs, the braking part 44 applies an operating braking force to the starting device rope 42.

[0057] When the operating braking force is applied to the starting device rope 42, the payout of the starting device rope 42 from the winding body 431 stops. At this time, since the car equipment 10 continues to move downward, the operating lever 131 of the emergency stop device 13 is pulled up by the starting device rope 42. Thereby, the emergency stop device 13 operates and the car equipment 10 makes an emergency stop.

[0058] Returning to the description of the starting device provisional installation process S3 in FIG. 3 for the description of this embodiment. As shown in FIG. 3, the starting device provisional installation process S3 includes a main body provisional installation process S31 and a connection process S32.

[0059] <Main body provisional installation process S31> In the temporary installation process S3 of the starting device, after the lifting body installation process S2, the main body temporary installation process S31 is performed. In the main body temporary installation process S31, the starting device main body 41 is temporarily installed in the hoistway 1. The starting device main body 41 is temporarily installed at a position higher than the car equipment 10. The work of temporarily installing the starting device main body 41 is carried out while riding on the scaffold assembled in the hoistway 1. The starting device main body 41 is attached to the fixture fixed in the hoistway 1. Examples of the fixture include brackets and building beams.

[0060] <Connection process S32> After the main body temporary installation process S31, the connection process S32 is performed. In the connection process S32, the starting device rope 42 is connected to the emergency stop device 13. In the connection process S32, the starting device rope 42 fed out from the winding part 43 against the winding force of the winding part 43 is directly connected to the operating lever 131 of the emergency stop device 13. The work of connecting the starting device rope 42 to the emergency stop device 13 is carried out while riding on the scaffold assembled in the hoistway 1.

[0061] <Car scaffold process S4> After the starting device temporary installation process S3, the car scaffold process S4 is performed. In the car scaffold process S4, the work in the hoistway 1 is carried out using the car equipment 10 as a scaffold. That is, in the car scaffold process S4, the worker rides on the car equipment 10 to perform the work in the hoistway 1. In the car scaffold process S4, the car equipment 10 and the counterweight 11 are moved in the vertical direction by the driving force of the hoisting machine 3. In the car scaffold process S4, the car equipment 10 and the counterweight 11 are moved at a low speed lower than the normal operation speed. At this time, with the tension generated in the starting device rope 42, the winding and feeding out of the starting device rope 42 with respect to the winding part 43 are performed according to the movement of the car equipment 10. In the car scaffold process S4, the work in the hoistway 1 is carried out in the range where the position of the emergency stop device 13 is lower than that of the starting device main body 41.

[0062] In the car scaffold process S4, the scaffold assembled in the hoistway 1 is disassembled. Also, in the car scaffold process S4, landing equipment including the landing door 15 is installed at each landing. Further, in the car scaffold process S4, hoistway equipment including a limit switch (not shown) is installed in the hoistway 1. In the car scaffold process S4, wiring work and connection work in the hoistway 1 are also carried out.

[0063] In the car scaffold process S4, when an abnormal car running based on an excessive speed occurs, the brake unit 44 applies an operating braking force to the actuating device rope 42. For example, when the suspension body 9 breaks, the car equipment 10 moves downward. In the car scaffold process S4, when the car equipment 10 moves downward and an abnormal car running based on an excessive speed occurs, the brake unit 44 applies an operating braking force to the actuating device rope 42. Thereby, the emergency stop device 13 operates and the car equipment 10 is emergently stopped. Therefore, the car equipment 10 is prevented from falling.

[0064] When the car scaffold process S4 is completed, power supply to the car equipment 10 becomes possible. Thereby, the emergency stop operating device 30 attached to the car equipment 10 becomes usable. Note that FIG. 4 shows the elevator when the car scaffold process S4 in FIG. 3 is completed.

[0065] <Removal process S5> After the car scaffold process S4, the removal process S5 is performed. In the removal process S5, the actuating device 40 is removed. The work of removing the actuating device 40 is carried out while riding on the car equipment 10. In the removal process S5, for example, when the suspension body 9 breaks and an abnormal car running based on an excessive speed occurs, the emergency stop device 13 is operated by the emergency stop operating device 30. Thereby, the car equipment 10 is emergently stopped and the car equipment 10 is prevented from falling.

[0066] After the removal process S5, installation work of car-mounted equipment including the car door 122, wiring work in the car equipment 10, etc. are carried out. After that, by performing a test run, etc., the installation work of the elevator is completed.

[0067] In such an elevator, the starting device main body 41 is provided in the hoistway 1. The winding part 43 of the starting device main body 41 winds up a starting device rope 42 connected to the emergency stop device 13 of the car equipment 10. Therefore, the layout space of the starting device 40 in the hoistway 1 can be reduced. Also, the degree of freedom in the location where the starting device main body 41 is installed can be improved. As a result, it becomes easier to install the starting device 40 in the hoistway 1, and the function of preventing the car equipment 10 from falling can be easily ensured. Further, the car equipment 10 used after installation can be directly used for the installation work of the elevator. Thereby, it is not necessary to newly provide a work floor in the hoistway 1, nor is it necessary to newly provide a winch for moving the work floor in the hoistway 1. For these reasons, the burden of the elevator installation work can be reduced.

[0068] Also, the brake part 44 has a rotating part 441 and a braking force generating part 442. The rotating part 441 rotates integrally with the winding body 431. The braking force generating part 442 generates an operating braking force by the rotation of the rotating part 441 when an abnormal car running based on an excessive speed occurs. Therefore, by utilizing the movement of the starting device rope 42 when an abnormal car running based on an excessive speed occurs, the operating braking force can be applied to the starting device rope 42. Thereby, another driving part for generating the operating braking force can be made unnecessary. Accordingly, the work of installing the starting device main body 41 in the hoistway 1 can be facilitated, and the burden of the elevator installation work can be further reduced.

[0069] Also, the starting device rope 42 is made of metal. Therefore, for example, when a worker performs welding work in the hoistway 1, even if spatter or the like scattered by the welding work adheres to the starting device rope 42, the occurrence of damage to the starting device rope 42 can be prevented. Thereby, the function of the starting device 40 for operating the emergency stop device 13 can be more reliably ensured.

[0070] Also, the weight on the car equipment 10 side is heavier than the weight on the counterweight 11 side. Therefore, it is possible to prevent the car equipment 10 from moving upward due to the imbalance between the car equipment 10 side and the counterweight 11 side. Thereby, even when the braking force on the driving sheave 8 is released for some reason, it is possible to prevent the car equipment 10 from moving upward contrary to the intention of the operator. Therefore, when an abnormal car running based on an excessive speed occurs, the emergency stop device 13 can be operated more reliably.

[0071] Also, in such an elevator installation method, after the hoisting body installation step S2, the main body temporary installation step S31, and the connection step S32, the car scaffold step S4 is performed. Therefore, it is possible to easily provide the starting device 40 in the hoistway 1. Accordingly, when an operator rides on the car equipment 10 and works in the car scaffold step S4, the fall prevention function of the car equipment 10 can be easily ensured by the starting device 40. Further, by performing the main body temporary installation step S31 before the car scaffold step S4, the starting device main body 41 can be temporarily installed at a position in the hoistway 1 suitable for the place where the work is performed in the car scaffold step S4. Thereby, the starting device main body 41 can be temporarily installed at a position that does not interfere with the operator on the car equipment 10, and the work in the hoistway 1 in the car scaffold step S4 can be easily performed. Furthermore, the car equipment 10 used after installation can be directly used for the elevator installation work. Thereby, it is not necessary to newly provide a work floor in the hoistway 1, and it is not necessary to newly provide a winch for moving the work floor in the hoistway 1. From such things, the burden of the elevator installation work can be reduced.

[0072] In addition, in the first embodiment, the braking force generating unit 442 generates an operating braking force by using the centrifugal force caused by the rotation of the rotating unit 441. However, the configuration of the braking force generating unit 442 is not limited to this.

[0073] For example, an eddy current type brake device that generates an operating braking force by utilizing eddy currents generated in a metal plate may be used as the braking force generating unit 442. In this case, the rotating unit 441 is a metal plate that rotates integrally with the winding body 431. Further, the braking force generating unit 442 has a fixed portion and a permanent magnet. The fixed portion is fixed to the housing. The permanent magnet is fixed to the fixed portion in a state of facing the rotating unit.

[0074] When the eddy current type brake device is used as the braking force generating unit 442, in the braking force generating unit 442, when the rotating unit 441 rotates, eddy currents are generated in the rotating unit 441 by the magnetic flux of the permanent magnet. The magnitude of the eddy current changes according to the rotational speed of the rotating unit 441. The magnitude of the eddy current increases as the rotational speed of the rotating unit 441 becomes higher. As a result, a braking force corresponding to the magnitude of the eddy current is applied to the rotating unit 441 and the winding body 431. The magnitude of the braking force applied to the rotating unit 441 and the winding body 431 increases as the magnitude of the eddy current increases.

[0075] When the eddy current type brake device is used as the braking force generating unit 442, when the car running abnormality based on the excessive speed has not occurred, the magnitude of the braking force applied to the rotating unit 441 and the winding body 431 is smaller than the magnitude of the operating braking force. When the car running abnormality based on the excessive speed occurs, the rotational speed of the rotating unit 441 becomes excessive, and the magnitude of the eddy current generated in the rotating unit 441 becomes excessive. As a result, the magnitude of the braking force applied to the rotating unit 441 and the winding body 431 reaches the magnitude of the operating braking force. Therefore, the braking force generating unit 442 can generate the operating braking force and can operate the emergency stop device 13.

[0076] Thus, even when the eddy current brake device is used as the braking force generating unit 442, the braking force generating unit 442 can generate an operating braking force by the rotation of the rotating unit 441 when a car running abnormality based on an excessive speed occurs. Thereby, another driving unit for generating the operating braking force can be made unnecessary. Therefore, the work of installing the starting device main body 41 in the hoistway 1 can be facilitated, and the burden of the installation work of the elevator can be further reduced.

[0077] Examples of the starting device 40 using the eddy current brake device as the braking force generating unit 442 include an autobelay and a safety block. The autobelay is a fall prevention device that prevents a person from falling by suspending the person's body in sports climbing or the like. The safety block is a fall prevention device that prevents a person from falling by suspending the person's body in high-place work using a ladder or the like.

[0078] Further, in the first embodiment, the brake unit 44 for excessive speed that applies the operating braking force to the starting device rope 42 when a car running abnormality based on an excessive speed occurs is applied to the starting device main body 41. However, a brake unit 44 for excessive acceleration that applies the operating braking force to the starting device rope 42 when a car running abnormality based on an excessive acceleration occurs may be applied to the starting device main body 41. In this case, the configuration of the brake unit 44 for excessive acceleration is the same as the configuration of the brake unit 44 for excessive speed, except for the configuration of the braking force generating unit 442. The braking force generating unit 442 in the brake unit 44 for excessive acceleration has a fixed part, a mass body, and a movable claw.

[0079] When the brake part 44 for excessive acceleration is applied to the starter device main body 41, the fixing part is fixed to the housing. The mass body is held by the rotating part. The mass body moves relative to the rotating part in a direction opposite to the rotation direction of the rotating part by the inertial force when a car running abnormality based on excessive acceleration occurs. The magnitude of the inertial force of the mass body with respect to the rotating part increases as the rotational acceleration of the rotating part increases. The movable claw is movably provided on the rotating part. The movable claw is engaged with the fixing part by being pushed by the mass body moving relative to the rotating part. An operating braking force is applied to the starter rope 42 when the movable claw is engaged with the fixing part.

[0080] In this way, by applying the brake part 44 for excessive acceleration to the starter device 40, an operating braking force can be applied to the starter rope 42 when a car running abnormality based on excessive acceleration occurs. Therefore, when the car equipment 10 moves downward, the emergency stop device 13 can also be operated and the car equipment 10 can be emergently stopped even when a car running abnormality based on excessive acceleration occurs.

[0081] Embodiment 2. FIG. 6 is a schematic configuration diagram showing the starter device 40 included in the elevator with a temporary device according to Embodiment 2. The starter device 40 in Embodiment 2 includes a starter device main body 41, a detection unit 52, and a battery (not shown). The starter device main body 41 includes a winding unit 51, a brake unit 53, and a housing (not shown). The winding unit 51, the detection unit 52, the brake unit 53, and the battery are housed inside one housing.

[0082] The take-up unit 51 includes a take-up shaft 511, a take-up body 512, and a take-up spring (not shown). The take-up body 512 is provided on the housing via the take-up shaft 511. The take-up body 512 is rotatable with respect to the housing about the take-up shaft 511. The take-up body 512 is a ring-shaped member. The starting device rope 42 is connected to the take-up body 512. The take-up body 512 winds up the starting device rope 42 by rotating in the first direction with respect to the housing. The take-up body 512 pays out the starting device rope 42 by rotating in the direction opposite to the first direction with respect to the housing. The take-up spring generates an elastic restoring force that rotates the take-up body 512 in the first direction in which the take-up body 512 winds up the starting device rope 42. Therefore, the take-up unit 51 generates a take-up force for winding the starting device rope 42 around the take-up body 512 by means of the take-up spring.

[0083] The magnitude of the take-up force of the take-up unit 51 is smaller than the magnitude of the pulling force at which the emergency stop device 13 operates. Therefore, even if the take-up force of the take-up unit 51 is applied upward to the operating lever 131 of the emergency stop device 13 via the starting device rope 42, the emergency stop device 13 does not operate.

[0084] The take-up body 512 rotates in accordance with the movement of the starting device rope 42 with respect to the starting device main body 41. Since the starting device rope 42 is connected to the car equipment 10, the take-up body 512 rotates in accordance with the movement of the car equipment 10. Therefore, the rotation speed of the take-up body 512 becomes a speed corresponding to the speed of the car equipment 10.

[0085] The detection unit 52 detects that an abnormal car running based on an excessive speed has occurred based on the rotation of the take-up body 512. The detection unit 52 includes a mounting shaft 521, a centrifugal weight 522, a return spring 523, and a switch 524.

[0086] The centrifugal weight 522 is provided on the winding body 512 via the mounting shaft 521. The centrifugal weight 522 is rotatable with respect to the winding body 512 about the mounting shaft 521. A protrusion 522a is fixed to the centrifugal weight 522. In the detection unit 52, as the centrifugal weight 522 rotates about the mounting shaft 521, the distance from the axis of the winding shaft 511 to the protrusion 522a changes.

[0087] The return spring 523 is connected to the centrifugal weight 522 and the winding body 512. As the centrifugal weight 522 rotates with respect to the winding body 512 against the elastic restoring force of the return spring 523, the protrusion 522a moves in a direction away from the axis of the winding shaft 511.

[0088] The switch 524 is attached to the housing. Also, the switch 524 is disposed at a position farther from the axis of the winding shaft 511 than the centrifugal weight 522. The switch 524 has a switch body 524a and an operating portion 524b. The operating portion 524b is provided on the switch body 524a. The operating portion 524b protrudes from the switch body 524a toward the winding shaft 511.

[0089] When the winding body 512 rotates, a centrifugal force corresponding to the rotation speed of the winding body 512 acts on the centrifugal weight 522. When the speed of the car equipment 10 increases, the rotation speed of the winding body 512 increases. Therefore, when the rotation speed of the winding body 512 increases, the centrifugal force acting on the centrifugal weight 522 increases. As a result, when the rotation speed of the winding body 512 increases, the centrifugal weight 522 rotates with respect to the winding body 512 against the elastic restoring force of the return spring 523, and the protrusion 522a moves in a direction away from the axis of the winding shaft 511.

[0090] When a car running abnormality based on an excessive speed occurs, the protrusion 522a contacts the operating portion 524b. Thereby, the operating portion 524b is operated. When the operating portion 524b is operated, the switch 524 detects by the switch body 524a that a car running abnormality based on an excessive speed has occurred.

[0091] The battery supplies power to the brake unit 53 of the starting device main body 41. The switch 524 controls the supply of power from the battery to the brake unit 53. When the switch 524 does not detect the occurrence of a car running abnormality based on an excessive speed, it supplies power from the battery to the brake unit 53. Also, when the switch 524 detects the occurrence of a car running abnormality based on an excessive speed, it stops the supply of power from the battery to the brake unit 53.

[0092] The brake unit 53 is disposed at a position away from the winding unit 51 in the direction in which the starting device rope 42 is paid out from the winding unit 51. The brake unit 53 includes a receiving portion 531, a movable portion 532, an electromagnet 533, and a plurality of brake springs 534.

[0093] The electromagnet 533 is fixed to the housing. The receiving portion 531 is fixed to the electromagnet 533 via a fixing member (not shown). Also, the receiving portion 531 is disposed at a position away from the electromagnet 533. The movable portion 532 is supported by the electromagnet 533. Also, the movable portion 532 is disposed between the electromagnet 533 and the receiving portion 531. The plurality of brake springs 534 are disposed between the movable portion 532 and the electromagnet 533. The starting device rope 42 is passed between the receiving portion 531 and the movable portion 532.

[0094] Each brake spring 534 applies an elastic restoring force toward the receiving portion 531 to the movable portion 532. In a state where the supply of power to the electromagnet 533 is stopped, the starting device rope 42 is gripped between the receiving portion 531 and the movable portion 532 by the elastic restoring force of each brake spring 534. Thereby, the brake unit 53 applies an operating braking force to the starting device rope 42.

[0095] The electromagnet 533 generates an electromagnetic attractive force by supplying power from the battery to the electromagnet 533. The movable part 532 moves in a direction away from the receiving part 531 against the elastic restoring force of each brake spring 534 due to the generation of the electromagnetic attractive force of the electromagnet 533. Thereby, the gripping of the starting device rope 42 by the receiving part 531 and the movable part 532 is released. Therefore, when power is supplied from the battery to the electromagnet 533, the brake part 53 allows the movement of the starting device rope 42 with respect to the starting device main body 41.

[0096] For example, when the suspension 9 breaks, the car body device 10 moves downward due to gravity. When an abnormal car running based on an excessive speed occurs when the car body device 10 moves downward, it is detected by the detection unit 52 that an abnormal car running based on the excessive speed has occurred. Thereby, the supply of power from the battery to the electromagnet 533 is stopped by the detection unit 52.

[0097] When the supply of power to the electromagnet 533 is stopped, the starting device rope 42 is gripped between the receiving part 531 and the movable part 532. Thereby, an operating brake force is applied to the starting device rope 42 by the brake part 53.

[0098] When the operating brake force is applied to the starting device rope 42, the payout of the starting device rope 42 from the winding body 512 stops. At this time, since the car body device 10 continues to move downward, the operating lever 131 of the emergency stop device 13 is pulled up by the starting device rope 42. Thereby, the emergency stop device 13 operates and the car body device 10 makes an emergency stop. Other configurations in the present embodiment are the same as those in the first embodiment.

[0099] In such an elevator, when the detection unit 52 detects that a car running abnormality has occurred based on an excessive speed, the detection unit 52 stops supplying power from the battery to the brake unit 53. The brake unit 53 applies an operating braking force to the hoisting rope 42 due to the stop of the power supply from the battery to the brake unit 53. For this reason, it is possible to detect that a car running abnormality has occurred based on an excessive speed by the power of the battery. As a result, it is not necessary to supply power to the hoisting machine main body 41 from the outside. Therefore, the burden of the installation work of the hoisting machine main body 41 in the hoistway 1 can be further reduced.

[0100] In addition, in the second embodiment, the detection unit 52 may detect that a car running abnormality has occurred based on an excessive speed by directly measuring the moving speed of the hoisting rope 42 using a speed sensor. In this case, power is supplied to the detection unit 52 from the battery. The detection unit 52 includes a speed sensor and a control unit. The speed sensor directly measures the moving speed of the hoisting rope 42. The speed sensor is disposed at a position between the winding unit 51 and the brake unit 53. The control unit detects that a car running abnormality has occurred based on an excessive speed based on the measurement result of the speed sensor. Further, when the control unit detects that a car running abnormality has occurred based on an excessive speed, the control unit stops supplying power from the battery to the brake unit 53.

[0101] In addition, in the second embodiment, the detection unit 52 may detect that a car running abnormality has occurred based on an excessive acceleration by directly measuring the acceleration of the hoisting rope 42 using an acceleration sensor. In this case, power is supplied to the detection unit 52 from the battery. The detection unit 52 includes an acceleration sensor and a control unit. The acceleration sensor directly measures the acceleration of the hoisting rope 42. The acceleration sensor is disposed at a position between the winding unit 51 and the brake unit 53. The control unit detects that a car running abnormality has occurred based on an excessive acceleration based on the measurement result of the acceleration sensor. Further, when the control unit detects that a car running abnormality has occurred based on an excessive acceleration, the control unit stops supplying power from the battery to the brake unit 53.

[0102] Also, in Embodiment 2, the detection unit 52 may be provided in the car equipment 10. In this case, in order to send the detection result of the detection unit 52 to the starter device main body 41, a control cable reaching from the car equipment 10 to the starter device main body 41 is temporarily installed. Also, in this case, the power supply to the detection unit 52 is performed by a battery provided in the car equipment 10. As sensors included in the detection unit 52 provided in the car equipment 10, a roller type speed sensor, an APS (Absolute Positioning System) sensor, etc. are used. The roller type speed sensor generates a signal according to the rotation speed of a roller that contacts the car guide rail 16. The roller of the roller type speed sensor rolls on the car guide rail 16 according to the movement of the car equipment 10. The APS sensor calculates the speed of the car equipment 10 by reading a code tape arranged along the vertical direction. The APS sensor reads the code tape according to the movement of the car equipment 10. Also, as a sensor included in the detection unit 52, an acceleration sensor that directly detects the acceleration of the car equipment 10 may be provided in the car equipment 10.

[0103] Embodiment 3. FIG. 7 is a side view showing an elevator with a temporary device according to Embodiment 3. A handle 61 is provided on the starting device rope 42. In the present embodiment, the handle 61 is provided in the middle part of the starting device rope 42. The starting device rope 42 has a connection end portion connected to the emergency stop device 13. In a state where the starting device rope 42 fed out from the starting device main body 41 is connected to the emergency stop device 13, the handle 61 is positioned within an access range set above the car equipment 10. The access range is a range accessible to the worker 60 who has boarded on the car equipment 10.

[0104] Examples of the shape of the handle 61 include a rod shape and a ring shape. The shape of the handle 61 is not particularly limited. Other configurations in the present embodiment are the same as those in Embodiment 1.

[0105] In such an elevator, a handle 61 is provided on the starting device rope 42. Therefore, a worker 60 who has climbed onto the car equipment 10 can operate the starting device rope 42 by holding the handle 61. Thereby, the worker 60 can operate the emergency stop device 13 by pulling the handle 61 upward. Also, the worker 60 can cause the starting device main body 41 to apply an operating braking force to the starting device rope 42 by pulling the handle 61 downward. Therefore, even if there is no abnormal car running based on excessive speed or abnormal car running based on excessive acceleration, the emergency stop device 13 can be forcibly operated by the operation of the handle 61 by the worker 60.

[0106] Embodiment 4. FIG. 8 is a side view showing an elevator with a temporary installation device according to Embodiment 4. FIG. 9 is a top view showing the car equipment 10 of FIG. 8. A U-bolt 65 as a swing prevention member is provided on the car 12. The U-bolt 65 is provided on the side portion of the car 12. Two ends of the U-bolt 65 are attached to the side portion of the car 12.

[0107] The starting device rope 42 passes through the inside of the U-bolt 65. Thereby, when the car equipment 10 is viewed from above, the starting device rope 42 is surrounded by the U-bolt 65 as shown in FIG. 9. Other configurations in this embodiment are the same as those in Embodiment 1.

[0108] In such an elevator, a U-bolt 65 is provided on the car 12. Further, when the car equipment 10 is viewed from above, the starting device rope 42 is surrounded by the U-bolt 65. Therefore, the swing amplitude of the starting device rope 42 when the starting device rope 42 swings laterally can be suppressed by the U-bolt 65. Thereby, it is possible to make it difficult for the starting device rope 42 to get caught on protrusions existing in the hoistway 1, the car equipment 10, etc. In particular, there are many protrusions on the car equipment 10. Therefore, by providing the U-bolt 65 as a swing prevention member on the car 12, the effect of making it difficult for the starting device rope 42 to get caught on the protrusions can be enhanced. Thereby, it is possible to prevent the malfunction of the emergency stop device 13 caused by the starting device rope 42 getting caught on the protrusions.

[0109] Note that, in the fourth embodiment, the U-bolt 65 is used as a swing prevention member. However, the swing prevention member is not limited to this. For example, a ring-shaped member may be provided on the car 12 as a swing prevention member.

[0110] Also, the attachment portion of the swing prevention member to the car 12 may be a permanent magnet. In this case, the swing prevention member is attached to the car 12 by the magnetic force of the permanent magnet. In this way, the swing prevention member can be attached to the car 12 without processing the car 12, and the swing prevention member can be easily attached to the car 12.

[0111] Embodiment 5. FIG. 10 is a side view showing an elevator with a temporary device according to the fifth embodiment. A carabiner-shaped member 71 as a load absorption portion is provided on the starting device rope 42. In the present embodiment, the carabiner-shaped member 71 is provided at an intermediate portion of the starting device rope 42. The carabiner-shaped member 71 is more easily deformed than the starting device rope 42 in the length direction of the starting device rope 42.

[0112] The carabiner-shaped member 71 is set with a load absorption part limit load level. When a load greater than the magnitude of the load absorption part limit load level acts on the carabiner-shaped member 71, the carabiner-shaped member 71 deforms.

[0113] The magnitude of the load absorption part limit load level is smaller than the magnitude of the starter limit load level. The starter limit load level is a load level at which there is a risk of the starter main body 41 failing when a load acts on the starter main body 41 via the starter rope 42.

[0114] When the emergency stop device 13 operates and an excessive load acts on the starter rope 42, the carabiner-shaped member 71 deforms to absorb the load. Therefore, the magnitude of the load acting on the starter main body 41 via the starter rope 42 becomes smaller than the magnitude of the starter limit load level.

[0115] Also, the magnitude of the load absorption part limit load level is greater than the magnitude of the pulling force at which the emergency stop device 13 operates. Thereby, when the starter rope 42 is pulled up with respect to the cage device 10, the carabiner-shaped member 71 does not deform. Therefore, when the starter main body 41 applies an operating braking force to the starter rope 42, a sufficient pulling force is transmitted from the starter main body 41 to the emergency stop device 13 via the starter rope 42. Other configurations in this embodiment are the same as those in Embodiment 1.

[0116] In such an elevator, a hook-shaped member 71 as a load absorption part is provided on the starting device rope 42. The hook-shaped member 71 is more easily deformed than the starting device rope 42 in the length direction of the starting device rope 42. Therefore, even if an excessive load acts on the starting device rope 42 from the car equipment 10 between the activation of the emergency stop device 13 and the stop of the car equipment 10, the hook-shaped member 71 can be deformed to absorb the load. Thereby, the magnitude of the load acting on the starting device main body 41 via the starting device rope 42 can be reduced. Accordingly, it is possible to prevent the occurrence of a failure of the starting device main body 41, damage to the fixture to which the starting device main body 41 is attached, and the like.

[0117] In addition, in the fifth embodiment, the hook-shaped member 71 is used as the load absorption part. However, it is not limited to this. For example, a shock absorber may be provided on the starting device rope 42 as the load absorption part. Even in this case, when an excessive load acts on the starting device rope 42, the shock absorber deforms in the length direction of the starting device rope 42. Thereby, the load is absorbed by the shock absorber. Further, a bellows part formed by folding and fixing a part of the starting device rope 42 in a bellows shape may be provided on the starting device rope 42 as the load absorption part. Even in this case, when an excessive load acts on the starting device rope 42, the bellows part expands, so that the bellows part deforms in the length direction of the starting device rope 42. Thereby, the load is absorbed by the bellows part.

[0118] In addition, in the fifth embodiment, the hook-shaped member 71 is provided in the middle part of the starting device rope 42. However, it is not limited to this. For example, the connection end of the starting device rope 42 may be connected to the emergency stop device 13 via the hook-shaped member 71.

[0119] In addition, in the third embodiment, the configuration in which the handle 61 is provided on the starting device rope 42 is applied to the first embodiment. However, the configuration in which the handle 61 is provided on the starting device rope 42 may be applied to the second, fourth, and fifth embodiments.

[0120] Further, in Embodiment 4, the configuration in which the anti-sway member is provided on the car 12 is applied to Embodiment 1. However, the configuration in which the anti-sway member is provided on the car 12 may also be applied to Embodiments 2, 3, and 5.

[0121] Also, in Embodiment 5, the configuration in which the load absorption part is provided on the starting device rope 42 is applied to Embodiment 1. However, the configuration in which the load absorption part is provided on the starting device rope 42 may also be applied to Embodiments 2 to 4.

[0122] Further, in each of the above embodiments, the starting device rope 42 is made of metal. However, if there is no risk of spatter or the like scattered by welding work adhering to the starting device rope 42, the starting device rope 42 does not have to be made of metal. Therefore, the starting device rope 42 may be made of resin or the like.

[0123] Also, in each of the above embodiments, the weight on the car equipment 10 side is heavier than the weight on the counterweight 11 side. However, the weight on the car equipment 10 side and the weight on the counterweight 11 side may be the same. Even in this case, it is possible to prevent the car equipment 10 from moving upward contrary to the intention of the operator. That is, the weight on the car equipment 10 side may be equal to or greater than the weight on the counterweight 11 side.

[0124] Also, in each of the above embodiments, the starting device rope 42 is directly connected to the emergency stop device 13. However, for example, the starting device rope 42 may be connected to the emergency stop device 13 via the pull-up rod 32 of the emergency stop operating device 30. In this way, it is possible to easily secure a working space when connecting the starting device rope 42 to the pull-up rod 32. Thereby, the burden of the work of providing the starting device 40 in the hoistway 1 can be further reduced.

[0125] Also, in each of the above embodiments, the main body temporary installation step S31 is performed after the lifting body installation step S2, and the connection step S32 is performed after the main body temporary installation step S31. However, the connection step S32 may be performed after the lifting body installation step S2, and the main body temporary installation step S31 may be performed after the connection step S32.

[0126] Also, in each of the above embodiments, a counter for counting the number of times the starter main body 41 applies the operating braking force to the starter rope 42 may be provided in the starter 40. In this way, it is possible to determine whether the starter 40 can be used based on the number of operations of the starter main body 41. As a result, it is possible to eliminate the starter 40 that may have a reduced reliability, and improve the reliability of the starter 40 to be used. The counter may be a mechanical counter or an electric counter. When using an electric counter, a battery for supplying power to the counter is provided in the starter main body 41.

[0127] Also, in each of the above embodiments, a counter for counting the number of times the length of the starter rope 42 fed out from the starter main body 41 exceeds the reference length may be provided in the starter 40. In this way, it is possible to determine whether the starter 40 can be used based on the number of times the starter rope 42 is fed out from the starter main body 41 exceeding the reference length. As a result, it is possible to eliminate the starter 40 that may have a reduced reliability, and improve the reliability of the starter 40 to be used. The counter may be a mechanical counter or an electric counter. When using an electric counter, a battery for supplying power to the counter is provided in the starter main body 41.

[0128] Also, in each of the above embodiments, the suspension method of suspending the cage device 10 and the counterweight 11 by the suspension body 9 is the 1:1 roping method. However, it is not limited to this. For example, the suspension method of suspending the cage device 10 and the counterweight 11 by the suspension body 9 may be the 2:1 roping method.

Explanation of Reference Numerals

[0129] 1 hoisting path, 3 hoisting machine, 8 drive sheave, 9 suspension body, 10 car equipment, 11 counterweight, 12 car, 13 emergency stop device, 40 starting device, 41 starting device body, 42 starting device rope, 43, 51 winding part, 44, 53 brake part, 52 detection part, 61 handle, 65 U-bolt (anti-vibration member), 71 carabiner-shaped member (load absorption part), 431, 512 winding body, 441 rotating part, 442 brake force generation part.

Claims

1. A cage device having a cage and an emergency stop device provided in the cage, the cage device being movable up and down in a hoistway, and An activation device having an activation device main body disposed at a position higher than the emergency stop device in the hoistway, and an activation device rope connected to the activation device main body is provided, The activation device main body has a winding portion for winding the activation device rope and a brake portion, The activation device rope is connected to the emergency stop device in a state of being fed out from the winding portion against the winding force of the winding portion, When the cage device moves downward and a cage running abnormality occurs in which the speed or acceleration of the cage device becomes excessive, the brake portion applies an operating braking force for operating the emergency stop device to the activation device rope. An elevator.

2. The winding portion has a winding body that rotates in response to the movement of the activation device rope relative to the activation device main body, The brake portion has a rotating portion that rotates integrally with the winding body, and a braking force generating portion that generates the operating braking force by the rotation of the rotating portion when the cage running abnormality occurs. The elevator according to claim 1.

3. The activation device has a battery and a detection unit, When the detection unit detects the occurrence of the cage running abnormality, the detection unit stops the supply of power from the battery to the brake portion, The brake portion applies the operating braking force to the activation device rope by stopping the supply of power from the battery to the brake portion. The elevator according to claim 1.

4. The activation device rope is made of metal. The elevator according to any one of claims 1 to 3.

5. The activation device rope is provided with a handle. The elevator according to any one of claims 1 to 4.

6. The cage is provided with a stabilizer member, When the cage is viewed from above, the activation device rope is surrounded by the stabilizer member. The elevator according to any one of claims 1 to 5.

7. A counterweight movable up and down in the hoistway, A suspension body for suspending the cage device and the counterweight, and A hoisting machine having a drive sheave around which the suspension body is wound, and moving the cage device and the counterweight up and down by rotating the drive sheave is provided, The elevator according to any one of claims 1 to 6, wherein the weight on the car equipment side is equal to or greater than the weight on the counterweight side.

8. A load absorbing portion is provided on the starting device rope, The elevator according to any one of claims 1 to 7, wherein the load absorbing portion is more deformable than the starting device rope in the length direction of the starting device rope.

9. An elevator installation step of movably installing a car equipment having a car and an emergency stop device provided on the car in the hoistway in the vertical direction, A main body temporary installation step of temporarily installing a starting device having a starting device main body and a starting device rope connected to the starting device main body in the hoistway, A connecting step of connecting the starting device rope to the emergency stop device, After the elevator installation step, the main body temporary installation step, and the connecting step, a car scaffold step of performing work in the hoistway using the car equipment as a scaffold, and A removing step of removing the starting device after the car scaffold step are provided, The starting device main body has a winding portion for winding the starting device rope and a brake portion, The starting device rope is fed out from the winding portion against the winding force of the winding portion, In the main body temporary installation step, the starting device main body is temporarily installed at a position higher than the emergency stop device, In the car scaffold step, when an abnormal car running occurs in which the speed or acceleration of the car equipment becomes excessive when the car equipment moves downward, the brake portion applies an operating braking force for operating the emergency stop device to the starting device rope. Installation method of elevator.

Images