WO2023181383A1 - Elevator and elevator installation method - Google Patents

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

Elevators and elevator installation methods

The present disclosure relates to an elevator in which an emergency stop device is provided in the car, and an elevator installation method.

Conventionally, elevators have been proposed that operate an emergency stop device without relying on a speed governor when the main rope suspending the car breaks. Furthermore, in order to install an elevator that is not equipped with a speed governor, there has been a known elevator installation method in which a wire rope is suspended from the top of the hoistway and the car frame is moved vertically along the wire rope. There is.

In such a conventional elevator installation method, a wire rope is wound around a winch attached to the car frame. A work floor is attached to the car frame. The work floor and car frame are moved in the vertical direction by winding and letting out a wire rope using a winch. This allows workers on the work floor to work within the hoistway. When the wire rope breaks, the winch is displaced relative to the car frame due to the elastic force of the spring. As a result, an emergency stop device attached to the car frame is activated and the car frame is stopped (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2000-118907

However, the conventional elevator installation method shown in Patent Document 1 requires work such as hanging the wire rope from the top of the hoistway, attaching the work floor to the car frame, and winding the wire rope around the winch. . This places a burden on the elevator installation work.

The present disclosure has been made to solve the above problems, and aims to provide an elevator and an elevator installation method that can reduce the burden of installation work.

An elevator according to the present disclosure includes a car and an emergency stop device provided in the car, and includes car equipment that is movable up and down in a hoistway, and is arranged at a higher position than the emergency stop device in the hoistway. The starting device includes a starting device main body and a starting device rope connected to the starting device main body, and the starting device main body has a winding part for winding the starting device rope and a brake part. , the starting device rope is connected to the emergency stop device in a state where it is unwound from the winding unit against the winding force of the winding unit, and when the car equipment moves downward, the starting device rope is When a car running abnormality occurs in which acceleration is excessive, the brake section applies an actuation braking force to the activation device rope to activate the emergency stop device.
Further, the elevator installation method according to the present disclosure includes a step of installing a lifting body in which a car device having a car and an emergency stop device provided on the car is movable in the vertical direction in a hoistway, a starting device main body, and a starting device main body. After the main body temporary installation step of temporarily installing the starting device having the starting device rope connected to the hoistway in the hoistway, the connecting step of connecting the starting device rope to the emergency stop device, the elevating body installation step, the main body temporary setting step and the connecting step, A car scaffolding process for performing work in the hoistway using car equipment as a foothold, and a removal process for removing the starting device after the car scaffolding process, and the starting device main body includes a winding part for winding the starting device rope; The starting device rope is unwound from the winding section against the winding force of the winding section, and in the main body temporary installation process, the starting device main body is temporarily installed at a higher position than the emergency stop device. In the car scaffolding process, when a car running abnormality occurs in which the speed or acceleration of the car equipment becomes excessive when the car equipment moves downward, the brake unit transfers the operating brake force that activates the emergency stop device to the activation device rope. Add to.

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

FIG. 2 is a side view showing an elevator installed by the elevator installation method according to the first embodiment. FIG. 2 is a front view showing a schematic configuration of the safety device shown in FIG. 1. FIG. 2 is a flowchart showing an installation method for installing the elevator of FIG. 1. FIG. FIG. 4 is a side view showing an elevator with a temporary device in which the starting device is temporarily installed in the hoistway by the starting device temporary installation process of FIG. 3; 5 is a schematic configuration diagram showing the activation device of FIG. 4. FIG. FIG. 3 is a schematic configuration diagram showing a starting device included in an elevator with a temporary device according to a second embodiment. FIG. 7 is a side view showing an elevator with a temporary device according to Embodiment 3; FIG. 7 is a side view showing an elevator with a temporary device according to a fourth embodiment. FIG. 9 is a top view showing the car device of FIG. 8; FIG. 7 is a side view showing an elevator with a temporary device according to a fifth embodiment.

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 the first embodiment. In the figure, a machine room 2 is provided above a hoistway 1. In the machine room 2, a hoist 3, a deflection wheel 4, a control device 5, and a safety monitoring device 6 are installed.

The hoist 3 has a hoist main body 7 and a drive sheave 8. The drive sheave 8 is provided in the hoist main body 7. The hoist main body 7 has a hoist motor and a hoist brake. The hoist motor generates a driving force that rotates the drive sheave 8. The hoist brake keeps the drive sheave 8 stationary. Further, the hoisting machine brake brakes the rotation of the drive sheave 8.

A suspension body 9 is wrapped around the drive sheave 8 and the deflection wheel 4. As the suspension body 9, a plurality of ropes or a plurality of belts are used.

Inside the hoistway 1, a car device 10 and a counterweight 11 are provided so as to be movable in the vertical direction. A car device 10 is connected to a first end of the suspension body 9. A counterweight 11 is connected to the second end of the suspension body 9. The car equipment 10 and the counterweight 11 are suspended in the hoistway 1 by a suspension body 9. The car equipment 10 and the counterweight 11 are moved in the vertical direction within the hoistway 1 by rotating the drive sheave 8. That is, the hoist 3 is a drive device that moves the car device 10 and the counterweight 11 in the vertical direction.

The car device 10 includes a car 12 and an emergency stop device 13. The car 12 is provided with a car entrance 121. The car entrance 121 is opened and closed by a pair of car doors 122.

A landing entrance 14 is provided on each floor of the building. The hoistway 1 is open to a landing through a landing entrance/exit 14 on each floor. Each landing entrance 14 is opened and closed by a pair of landing doors 15. On the floor where the car equipment 10 is stopped, the pair of landing doors 15 interlock with the pair of car doors 122 to open and close the car entrance 121 and the landing entrance 14.

The control device 5 controls the hoisting machine 3 to move the car equipment 10 and the counterweight 11 in the vertical direction at a set speed. Excessive speed and excessive acceleration are preset in the safety monitoring device 6. The safety monitoring device 6 monitors whether the speed of the car device 10 has reached an excessive speed. That is, the safety monitoring device 6 monitors whether an abnormality in which the speed of the car device 10 becomes excessively high, that is, a car running abnormality based on the excessive speed has occurred. Furthermore, the safety monitoring device 6 monitors whether the acceleration of the car device 10 has reached 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 excessive acceleration has occurred. The functions of the control device 5 and the safety monitoring device 6 can each be realized by a computer. The speed and acceleration of the car device 10 are detected by a sensor (not shown) provided in the car device 10.

A pair of car guide rails 16 and a pair of counterweight guide rails 17 are installed in the hoistway 1.

A pair of car guide rails 16 guide the movement of the car device 10. Thereby, the car device 10 moves in the vertical direction along the pair of car guide rails 16.

A pair of counterweight guide rails 17 guide the movement of the counterweight 11. Thereby, the counterweight 11 moves in the vertical direction along the pair of counterweight guide rails 17.

A car shock absorber 18 and a counterweight shock absorber 19 are installed at the bottom of the hoistway 1. The car buffer 18 is located below the car device 10. The counterweight buffer 19 is located below the counterweight 11.

The emergency stop device 13 is provided at the bottom of the car 12. When the safety device 13 is activated, the safety device 13 grips the pair of car guide rails 16 . The emergency stop device 13 brings the car device 10 to an emergency stop by gripping the pair of car guide rails 16.

A compen rope 21 is suspended from the car device 10 and the counterweight 11. A 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.

A tension wheel 20 is provided at the bottom of the hoistway 1. The compen rope 21 is wound around the tension wheel 20. The balance between the car equipment 10 side and the counterweight 11 side is compensated by the compensation rope 21.

The safety monitoring device 6 generates an operation command signal when the speed of the car device 10 reaches an excessive speed, that is, when a car running abnormality occurs due to the excessive speed. The safety monitoring device 6 also generates an operation command signal when the acceleration of the car device 10 reaches an excessive acceleration, that is, when a car running abnormality occurs due to excessive acceleration. The activation command signal is a signal for activating the emergency stop device 13.

The car equipment 10 is provided with an emergency stop actuation device 30. The emergency stop actuating device 30 has an actuating device main body 31 and a pulling rod 32.

The actuating device main body 31 is provided at the top of the car device 10. The upper end of the pulling rod 32 is connected to the actuator main body 31. The lower end of the pulling rod 32 is connected to the emergency stop device 13. The actuating device main body 31 pulls up the lifting rod 32 relative to the car equipment 10 in response to an actuation command signal from the safety monitoring device 6. As a result, the emergency stop device 13 is activated. The elevator after installation is not equipped with a speed governor. The emergency stop device 13 is operated by the emergency stop actuating device 30, not by the speed governor.

For example, if the suspension body 9 breaks, the car device 10 moves downward due to gravity. When the car device 10 moves downward, if a car running abnormality due to excessive speed or a car running abnormality due to excessive acceleration occurs, an operation command signal is output from the safety monitoring device 6 to the actuating device main body 31. The actuating device main body 31 receives an actuation command signal from the safety monitoring device 6 to lift the lifting rod 32 relative to the car equipment 10. As a result, the emergency stop device 13 is activated.

FIG. 2 is a front view showing a schematic configuration of the emergency stop device 13 of FIG. 1. The emergency stop device 13 includes an actuation lever 131, an interlocking lever 132, a connecting rod 133, a first grip part 134, and a second grip part 135.

The actuation lever 131 is rotatable around the actuation lever shaft 131a. The actuation lever shaft 131a is supported by the car 12. The lower end of the pulling rod 32 is rotatably connected to the operating lever 131.

The interlocking lever 132 is rotatable around the interlocking lever shaft 132a. The interlocking lever shaft 132a is supported by the car 12.

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 actuating lever 131 to the interlocking lever 132. As a result, the interlocking lever 132 rotates in conjunction with the actuation lever 131.

The actuation lever 131 is connected to the first grip part 134. The first gripping portion 134 grips one of the pair of car guide rails 16 when the operating lever 131 is rotated by pulling up the pulling rod 32 .

The interlocking lever 132 is connected to the second grip part 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 .

The car equipment 10 is brought to an emergency stop by the first gripping part 134 gripping one car guide rail 16 and the second gripping part 135 gripping the other car guide rail 16.

Next, we will explain how to install the elevator. FIG. 3 is a flowchart showing an installation method for installing the elevator of FIG. The elevator installation method includes a scaffold assembly process S1, an elevator installation process S2, a starting device temporary installation process S3, a car scaffolding process S4, and a removal process S5.

<Scaffold assembly process S1>
When installing the elevator, a scaffold assembly step S1 is performed. In the scaffold assembly step S1, a scaffold is assembled within the hoistway 1. By assembling the scaffolding within the hoistway 1, it becomes possible for workers to perform work within the hoistway 1 using the scaffolding.

<Elevating body installation process S2>
After the scaffold assembly process S1, an elevating body installation process S2 is performed. In the elevator installation step S2, a car device 10 and a counterweight 11 are provided in the hoistway 1. An emergency stop actuating device 30 is attached to the car device 10. In the elevating body installation step S2, since power is not supplied to the emergency stop actuating device 30, the emergency stop device 13 cannot be actuated by the emergency stop actuating device 30.

In the elevator installation step S2, a pair of car guide rails 16 and a pair of counterweight guide rails 17 are installed in the hoistway 1. Further, in the elevating body installation step S2, the hoisting machine 3, the deflection wheel 4, the control device 5, and the safety monitoring device 6 are installed in the machine room 2. Furthermore, in the elevating body installation step S2, the suspension body 9 is wound around the drive sheave 8 and the deflection wheel 4, and the suspension body 9 is connected to the car device 10 and the counterweight 11. Thereby, the car device 10 and the counterweight 11 become movable in the vertical direction by the driving force of the hoist 3. Further, in the elevator installation step S2, the car shock absorber 18 and the counterweight shock absorber 19 are installed at the bottom of the hoistway 1. Furthermore, in the elevating body installation step S2, the tension wheel 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.

<Starting device temporary installation process S3>
After the elevating body installation step S2, a starting device temporary installation step S3 is performed. In the starting device temporary installation step S3, the starting device is temporarily installed in the hoistway 1. The activation device is a device that enables the emergency stop device 13 to operate.

Here, an elevator with a temporary device in which the starting device is temporarily installed in the hoistway 1 in the starting device temporary installation step S3 will be described.

FIG. 4 is a side view showing an elevator with a temporary device in which a starting device is temporarily installed in the hoistway 1 in 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 arranged in the hoistway 1 at a higher position than the emergency stop device 13. 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 this embodiment, the activation device rope 42 is directly connected to the operating lever 131 of the emergency stop device 13.

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

FIG. 5 is a schematic configuration diagram showing the activation device 40 of FIG. 4. The starting device main body 41 includes 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.

The winding unit 43 winds up the starting device rope 42. The winding section 43 includes a winding body 431 and a winding spring 432. The winding body 431 is rotatably provided in the housing. The winding body 431 is a cylindrical member. A starter rope 42 is connected to the winding body 431 . The winding body 431 winds up the starting device rope 42 by rotating in the first direction relative to the housing. The winding body 431 lets out the starter rope 42 by rotating in a direction opposite to the first direction with respect to the housing. The take-up spring 432 generates an elastic restoring force that rotates the take-up body 431 in a first direction in which the take-up body 431 winds up the starter rope 42 . Therefore, the winding unit 43 uses the winding spring 432 to generate a winding force for winding the starting device rope 42 onto the winding body 431 .

The housing is provided with an opening (not shown). The actuator rope 42 exits from the take-up portion 43 through an opening in the housing to the outside of the housing. The starting device main body 41 is provided in the hoistway 1 with the opening of the housing facing downward.

The starting device rope 42 is wound onto the winding body 431 by the winding force of the winding unit 43. Furthermore, the starting device rope 42 is unwound from the winding body 431 against the winding force of the winding section 43 . In this embodiment, the starting device rope 42 is made of metal. As the starting device rope 42, a rope made of, for example, a metal wire is used.

When the car equipment 10 moves downward, the starting device rope 42 is unwound from the winding body 431 while the starting device rope 42 is under tension. Further, when the car 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.

The magnitude of the winding force of the winding unit 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 unit 43 is applied upwardly 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.

The winding body 431 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 device 10, the winding body 431 rotates in accordance with the movement of the car device 10. Therefore, the rotational speed of the winding body 431 corresponds to the speed of the car device 10. Further, the rotational acceleration of the winding body 431 corresponds to the acceleration of the car device 10.

The brake section 44 has a rotating section 441 and a brake force generating section 442. The brake force generating section 442 has a fixed section 443 and a pair of movable sections 444. The fixed part 443 is fixed to the housing. The shape of the fixing part 443 is a ring. A plurality of receiving teeth 443a are provided on the inner peripheral portion of the fixed portion 443. The plurality of receiving teeth 443a are arranged in the circumferential direction of the fixed portion 443.

The rotating part 441 is fixed to the winding body 431. The rotating part 441 rotates together with the winding body 431. Thereby, the rotating part 441 rotates in accordance with the movement of the starting device rope 42 with respect to the starting device main body 41. The center of rotation of the rotating part 441 coincides with the center of the ring-shaped fixed part 443.

A pair of movable parts 444 are provided in the rotating part 441. Further, the pair of movable parts 444 are arranged inside the fixed part 443. Each of the pair of movable parts 444 is movable relative to the rotating part 441 in mutually opposite directions by a guide mechanism (not shown). Each of the pair of movable parts 444 is provided with hook teeth 444a facing the fixed part 443.

Each movable part 444 is movable relative to the rotating part 441 between an engaged position and a released position. The hooking position is a position where the hooking tooth 444a of the movable portion 444 hooks on the receiving tooth 443a of the fixed portion 443. The release position is a position where the catch tooth 444a of the movable part 444 is separated 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.

When the rotating part 441 rotates, a centrifugal force corresponding to the rotational speed of the rotating part 441 is applied to each movable part 444. When the speed of the car device 10 increases, the rotational speed of the rotating section 441 increases. Therefore, when the rotational speed of the rotating part 441 increases, the centrifugal force applied to each movable part 444 increases. As a result, each movable portion 444 moves in a direction approaching the hooked position, that is, in the direction of the arrow in FIG. 5, against the elastic restoring force of the holding spring.

When a car running abnormality occurs due to excessive speed, at least one of the pair of movable parts 444 reaches the engaged position. As a result, the hooking tooth 444a of the movable portion 444 that has reached the hooking position engages the receiving tooth 443a of the fixed portion 443. When the catch tooth 444a engages the receiving tooth 443a, the rotation of the rotating portion 441 and the winding body 431 is prevented by the fixed portion 443. As a result, an actuation brake force for actuating the emergency stop device 13 is applied to the activation device rope 42. That is, the brake force generation section 442 generates an operational brake force by the rotation of the rotating section 441 when a car running abnormality due to excessive speed occurs.

For example, if the suspension body 9 breaks, the car device 10 moves downward due to gravity. If a car running abnormality occurs due to excessive speed when the car equipment 10 moves downward, the brake section 44 applies an actuation braking force to the starting device rope 42 .

When the actuation brake force is applied to the starting device rope 42, the starting device rope 42 stops being fed out from the winding body 431. At this time, since the car equipment 10 continues to move downward, the activation lever 131 of the emergency stop device 13 is pulled up by the activation device rope 42. As a result, the emergency stop device 13 is activated, and the car equipment 10 is brought to an emergency stop.

The description of this embodiment will be returned to the description of the activation device temporary installation step S3 in FIG. 3. As shown in FIG. 3, the activation device temporary installation step S3 includes a main body temporary installation step S31 and a connection step S32.

<Main body temporary construction process S31>
In the starting device temporary installation process S3, a main body temporary installation process S31 is performed after the elevating body installation process S2. In the main body temporary installation step 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 higher position than the car device 10. The work of temporarily installing the starting device main body 41 is performed on a scaffold assembled in the hoistway 1. The starting device main body 41 is attached to a fixed object fixed within the hoistway 1. Examples of fixed objects include brackets and architectural beams.

<Connection process S32>
After the main body temporary installation step S31, a connection step S32 is performed. In the connecting step S32, the starting device rope 42 is connected to the emergency stop device 13. In the connecting step S32, the starting device rope 42, which has been let out from the winding section 43 against the winding force of the winding section 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 performed on a scaffold assembled within the hoistway 1.

<Cage scaffolding process S4>
After the starting device temporary installation step S3, a car scaffolding step S4 is performed. In the car scaffolding process S4, work in the hoistway 1 is performed using the car equipment 10 as a scaffold. That is, in the car scaffolding process S4, a worker rides on the car equipment 10 and performs work in the hoistway 1. In the car scaffolding step S4, the car equipment 10 and the counterweight 11 are moved in the vertical direction by the driving force of the hoist 3. In the car scaffolding step S4, the car equipment 10 and the counterweight 11 are moved at a low speed lower than the speed during normal operation. At this time, with the starting device rope 42 under tension, the starting device rope 42 is wound around the winding section 43 and unwound as the car device 10 moves. In the car scaffolding step S4, work within the hoistway 1 is performed in a range where the emergency stop device 13 is located at a lower position than the starting device main body 41.

In the car scaffolding process S4, the scaffolding assembled in the hoistway 1 is dismantled. Further, in the car scaffolding step S4, landing equipment including the landing door 15 is installed at each landing. Further, in the car scaffolding step S4, hoistway equipment including limit switches (not shown) and the like are installed in the hoistway 1. In the car scaffolding step S4, wiring work and connection work within the hoistway 1 are also performed.

In the car scaffolding step S4, when a car running abnormality occurs due to excessive speed, the brake section 44 applies an actuation braking force to the starting device rope 42. For example, if the suspension body 9 breaks, the car device 10 moves downward. In the car scaffolding step S4, when a car running abnormality occurs due to excessive speed when the car equipment 10 moves downward, the brake section 44 applies an actuation braking force to the starting device rope 42. As a result, the emergency stop device 13 is activated, and the car equipment 10 is brought to an emergency stop. Therefore, the car device 10 is prevented from falling.

By completing the car scaffolding step S4, power can be supplied to the car equipment 10. As a result, the emergency stop actuation device 30 attached to the car device 10 becomes usable. Note that FIG. 4 shows the elevator when the car scaffolding step S4 of FIG. 3 is completed.

<Removal process S5>
After the cage scaffolding step S4, a removal step S5 is performed. In the removal step S5, the activation device 40 is removed. The work of removing the starting device 40 is performed by riding on the car device 10. In the removal step S5, if the suspension body 9 breaks, for example, and an abnormality in car running occurs due to excessive speed, the emergency stop device 13 is activated by the emergency stop actuating device 30. Thereby, the car device 10 is brought to an emergency stop, and the car device 10 is prevented from falling.

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 performed. After this, the elevator installation work will be completed by performing test runs and the like.

In such an elevator, the starting device main body 41 is provided within the hoistway 1. The winding unit 43 of the starting device main body 41 winds up the starting device rope 42 connected to the emergency stop device 13 of the car device 10. Therefore, the space for arranging the starting device 40 within the hoistway 1 can be reduced. Moreover, the degree of freedom in the location where the starting device main body 41 is attached can also be improved. Thereby, the starting device 40 can be easily provided in the hoistway 1, and the fall prevention function of the car equipment 10 can be easily ensured. Moreover, the car equipment 10 used after installation can be used as is for elevator installation work. This eliminates the need to newly provide a work floor within the hoistway 1, and also eliminates the need to newly provide a winch within the hoistway 1 to move the work floor. Because of this, the burden of elevator installation work can be reduced.

Further, the brake section 44 includes a rotating section 441 and a brake force generating section 442. The rotating part 441 rotates together with the winding body 431. The brake force generating section 442 generates an operational brake force by the rotation of the rotating section 441 when a car running abnormality due to excessive speed occurs. Therefore, the actuation brake force can be applied to the starting device rope 42 by utilizing the movement of the starting device rope 42 when a car running abnormality due to excessive speed occurs. This makes it possible to eliminate the need for a separate drive unit that generates the actuation braking force. Therefore, 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.

Furthermore, the starting device rope 42 is made of metal. Therefore, when a worker performs welding work in the hoistway 1, for example, even if spatter scattered during the welding work adheres to the starting device rope 42, damage to the starting device rope 42 can be prevented from occurring. . Thereby, the function of the activation device 40 that activates the emergency stop device 13 can be ensured more reliably.

Furthermore, the weight on the car device 10 side is heavier than the weight on the counterweight 11 side. Therefore, it is possible to prevent the car device 10 from moving upward due to the imbalance between the car device 10 side and the counterweight 11 side. Thereby, even if the braking force on the drive sheave 8 is released for some reason, the car equipment 10 can be prevented from moving upward against the operator's intention. Therefore, when a car running abnormality due to excessive speed occurs, the emergency stop device 13 can be operated more reliably.

In addition, in such an elevator installation method, the car scaffolding step S4 is performed after the elevator installation step S2, the main body temporary construction step S31, and the connection step S32. Therefore, the starting device 40 can be easily provided in the hoistway 1. Therefore, when a worker rides on the car equipment 10 and performs the work in the car scaffolding step S4, the fall prevention function of the car equipment 10 can be easily ensured by the activation device 40. Moreover, by performing the main body temporary installation step S31 before the car scaffolding step S4, the starting device main body 41 can be temporarily installed at a position in the hoistway 1 suitable for the place where work is performed in the car scaffolding step S4. Thereby, the starting device main body 41 can be temporarily installed in a position where it will not interfere with the worker riding on the car equipment 10, and the work inside the hoistway 1 in the car scaffolding step S4 can be facilitated. Furthermore, the car equipment 10 used after installation can be used as is for elevator installation work. This eliminates the need to newly provide a work floor within the hoistway 1, and also eliminates the need to newly provide a winch within the hoistway 1 to move the work floor. Because of this, the burden of elevator installation work can be reduced.

Note that in the first embodiment, the brake force generating section 442 generates the operating brake force using centrifugal force caused by the rotation of the rotating section 441. However, the configuration of the brake force generating section 442 is not limited to this.

For example, an eddy current brake device that generates an operating brake force using eddy currents generated in a metal plate may be used as the brake force generation section 442. In this case, the rotating part 441 is a metal plate that rotates together with the winding body 431. Further, the brake force generating section 442 includes a fixed section and a permanent magnet. The fixed part is fixed to the housing. The permanent magnet is fixed to the fixed part while facing the rotating part.

When an eddy current brake device is used as the brake force generation section 442, when the rotating section 441 rotates, an eddy current is generated in the rotating section 441 by the magnetic flux of the permanent magnet. The magnitude of the eddy current changes depending on the rotational speed of the rotating section 441. The magnitude of the eddy current increases as the rotational speed of the rotating section 441 increases. As a result, a braking force is applied to the rotating portion 441 and the winding body 431 in accordance with the magnitude of the eddy current. The magnitude of the braking force applied to the rotating portion 441 and the winding body 431 increases as the magnitude of the eddy current increases.

When an eddy current brake device is used as the brake force generating section 442, the magnitude of the brake force applied to the rotating section 441 and the winding body 431 is equal to the operating brake force when no car running abnormality due to excessive speed occurs. smaller than size. When a car running abnormality occurs due to excessive speed, the rotational speed of the rotating section 441 becomes excessive, and the magnitude of the eddy current generated in the rotating section 441 becomes excessive. As a result, the magnitude of the braking force applied to the rotating portion 441 and the winding body 431 reaches the magnitude of the operating braking force. Therefore, the brake force generating section 442 can generate an operating brake force and can operate the emergency stop device 13.

In this way, even if the eddy current type brake device is used as the brake force generation unit 442, the brake force generation unit 442 generates the operating brake force by the rotation of the rotating unit 441 when a car running abnormality due to excessive speed occurs. can do. This makes it possible to eliminate the need for a separate drive unit that generates the actuation braking force. Therefore, 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.

Examples of the starting device 40 that uses an eddy current brake device as the brake force generating section 442 include an auto-belay and a safety block. An auto-belay is a fall prevention device that prevents a human body from falling by suspending it during sports climbing or the like. A safety block is a fall prevention device that prevents a human body from falling by suspending it when working at heights using a ladder or the like.

Furthermore, in the first embodiment, an overspeed brake section 44 is applied to the starter main body 41, which applies an operating brake force to the starter rope 42 when a car running abnormality due to excessive speed occurs. However, an excessive acceleration brake section 44 may be applied to the starter main body 41, which applies an operating brake force to the starter rope 42 when a car running abnormality due to excessive acceleration occurs. In this case, the configuration of the brake section 44 for excessive acceleration is the same as the configuration of the brake section 44 for excessive speed, except for the configuration of the brake force generation section 442. The brake force generating section 442 in the excessive acceleration brake section 44 includes a fixed section, a mass body, and a movable pawl.

When the brake part 44 for excessive acceleration is applied to the starting 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 rotational direction of the rotating part due to inertial force when a car running abnormality due to excessive acceleration occurs. The magnitude of the inertial force of the mass body relative 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 pawl engages the fixed part by being pushed by a mass body that moves relative to the rotating part. An actuation braking force is applied to the activation device rope 42 when the movable claw is applied to the fixed portion.

In this manner, by applying the brake section 44 for excessive acceleration to the starting device 40, an operational braking force can be applied to the starting device rope 42 when a car running abnormality based on excessive acceleration occurs. Therefore, even when a car running abnormality occurs due to excessive acceleration when the car equipment 10 moves downward, the emergency stop device 13 can be activated and the car equipment 10 can be brought to an emergency stop.

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

The winding section 51 includes a winding shaft 511, a winding body 512, and a winding spring (not shown). The winding body 512 is provided in the housing via the winding shaft 511. The winding body 512 is rotatable relative to the housing around the winding shaft 511. The winding body 512 is a ring-shaped member. The starting device rope 42 is connected to the winding body 512 . The take-up body 512 takes up the activation device rope 42 by rotating in the first direction relative to the housing. The take-up body 512 lets out the starter rope 42 by rotating in a 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 a first direction in which the take-up body 512 takes up the starter rope 42 . Therefore, the winding unit 51 generates a winding force for winding the starting device rope 42 onto the winding body 512 using the winding spring.

The magnitude of the winding force of the winding unit 51 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 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.

The winding 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 device 10, the winding body 512 rotates in accordance with the movement of the car device 10. Therefore, the rotational speed of the winding body 512 corresponds to the speed of the car device 10.

The detection unit 52 detects, based on the rotation of the winding body 512, that a car running abnormality due to excessive speed has occurred. The detection unit 52 includes a mounting shaft 521, a centrifugal weight 522, a return spring 523, and a switch 524.

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

The return spring 523 is connected to the centrifugal weight 522 and the winding body 512. As the centrifugal weight 522 rotates relative 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.

The switch 524 is attached to the housing. Furthermore, the switch 524 is located further away from the axis of the take-up shaft 511 than the centrifugal weight 522 is. The switch 524 has a switch main body 524a and an operating section 524b. The operating section 524b is provided on the switch body 524a. The operating portion 524b protrudes from the switch body 524a toward the winding shaft 511.

When the winding body 512 rotates, a centrifugal force corresponding to the rotation speed of the winding body 512 is applied to the centrifugal weight 522. When the speed of the car device 10 increases, the rotational speed of the winding body 512 increases. Therefore, when the rotational speed of the winding body 512 increases, the centrifugal force applied to the centrifugal weight 522 increases. As a result, when the rotational 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 away from the axis of the winding shaft 511. moves.

When a car running abnormality occurs due to excessive speed, the protrusion 522a comes into contact with the operating portion 524b. As a result, the operating section 524b is operated. When the operating portion 524b is operated, the switch 524 detects, by the switch body 524a, that a car running abnormality due to excessive speed has occurred.

The battery supplies power to the brake section 53 of the starter main body 41. The switch 524 controls the supply of power from the battery to the brake section 53. The switch 524 supplies power from the battery to the brake unit 53 when the occurrence of a car running abnormality due to excessive speed is not detected. Further, when the switch 524 detects that a car running abnormality due to excessive speed has occurred, the switch 524 stops supplying power from the battery to the brake unit 53.

The brake section 53 is arranged at a position away from the winding section 51 in the direction in which the starting device rope 42 is unwound from the winding section 51. The brake section 53 includes a receiving section 531, a movable section 532, an electromagnet 533, and a plurality of brake springs 534.

The electromagnet 533 is fixed to the housing. The receiving portion 531 is fixed to the electromagnet 533 via a fixing member (not shown). Further, the receiving portion 531 is arranged at a position away from the electromagnet 533. The movable part 532 is supported by an electromagnet 533. Moreover, the movable part 532 is arranged between the electromagnet 533 and the receiving part 531. A plurality of brake springs 534 are arranged between the movable part 532 and the electromagnet 533. The starting device rope 42 is passed between the receiving part 531 and the movable part 532.

Each brake spring 534 applies an elastic restoring force to the movable part 532 toward the receiving part 531. When the power supply to the electromagnet 533 is stopped, the starting device rope 42 is held between the receiving part 531 and the movable part 532 by the elastic restoring force of each brake spring 534. Thereby, the brake section 53 applies an actuation braking force to the activation device rope 42.

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 attraction force of the electromagnet 533. As a result, the grip of the starting device rope 42 by the receiving portion 531 and the movable portion 532 is released. Therefore, when power is supplied from the battery to the electromagnet 533, the brake section 53 allows the activation device rope 42 to move relative to the activation device main body 41.

For example, if the suspension body 9 breaks, the car device 10 moves downward due to gravity. When a car running abnormality occurs due to excessive speed when the car device 10 moves downward, the detection unit 52 detects that the car running abnormality occurs due to excessive speed. As a result, the detection unit 52 stops supplying power from the battery to the electromagnet 533.

When the supply of power to the electromagnet 533 is stopped, the starting device rope 42 is held between the receiving part 531 and the movable part 532. As a result, an actuation braking force is applied to the starting device rope 42 by the brake portion 53.

When the actuation brake force is applied to the starter rope 42, the starter rope 42 stops being fed out from the winding body 512. At this time, since the car equipment 10 continues to move downward, the activation lever 131 of the emergency stop device 13 is pulled up by the activation device rope 42. As a result, the emergency stop device 13 is activated, and the car equipment 10 is brought to an emergency stop. The other configurations in this embodiment are the same as in the first embodiment.

In such an elevator, when the detection unit 52 detects that a car running abnormality due to excessive speed has occurred, the detection unit 52 stops supplying power from the battery to the brake unit 53. The brake section 53 applies an actuation braking force to the starter rope 42 by stopping the supply of power from the battery to the brake section 53 . Therefore, the occurrence of a car running abnormality due to excessive speed can be detected using the battery power. This eliminates the need to supply power to the starting device main body 41 from the outside. Therefore, the burden of the installation work of the starting device main body 41 within the hoistway 1 can be further reduced.

In the second embodiment, the detection unit 52 is configured to detect the occurrence of a car running abnormality due to excessive speed by directly measuring the moving speed of the starting device rope 42 using a speed sensor. Good too. 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 speed of movement of the actuator rope 42. The speed sensor is arranged at a position between the winding section 51 and the brake section 53. The control unit detects, based on the measurement result of the speed sensor, that a car running abnormality due to excessive speed has occurred. Further, when the control unit detects that a car running abnormality due to excessive speed has occurred, the control unit stops supplying power from the battery to the brake unit 53.

Further, in the second embodiment, the detection unit 52 may detect the occurrence of a car running abnormality due to excessive acceleration by directly measuring the acceleration of the starting device rope 42 using an acceleration sensor. good. 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 actuator rope 42. The acceleration sensor is arranged at a position between the winding section 51 and the brake section 53. The control unit detects that a car running abnormality due to excessive acceleration has occurred based on the measurement result of the acceleration sensor. Further, when the control unit detects that a car running abnormality based on excessive acceleration has occurred, the control unit stops supplying power from the battery to the brake unit 53.

Furthermore, in the second embodiment, the detection unit 52 may be provided in the car device 10. In this case, a control cable extending from the car device 10 to the starting device main body 41 is temporarily installed in order to send the detection result of the detection unit 52 to the starting device main body 41. Further, in this case, power is supplied to the detection unit 52 by a battery provided in the car device 10. As a sensor included in the detection unit 52 provided in the car device 10, a roller speed sensor, an Absolute Positioning System (APS) sensor, etc. are used. The roller speed sensor generates a signal corresponding to the rotational speed of the roller that contacts the car guide rail 16. The rollers of the roller speed sensor roll on the car guide rail 16 in accordance with the movement of the car device 10. The APS sensor calculates the speed of the car device 10 by reading code tapes arranged along the vertical direction. The APS sensor reads the code tape as the car device 10 moves. Further, as a sensor included in the detection unit 52, an acceleration sensor that directly detects the acceleration of the car device 10 may be provided in the car device 10.

Embodiment 3.
FIG. 7 is a side view showing an elevator with a temporary device according to the third embodiment. The activation device rope 42 is provided with a handle 61. In this embodiment, a handle 61 is provided at the intermediate portion of the activation device rope 42. The activation device rope 42 has a connecting end connected to the emergency stop device 13 . In a state where the starting device rope 42 let out from the starting device main body 41 is connected to the emergency stop device 13, the handle 61 is located within the access range set above the car device 10. The access range is a range that can be accessed by the worker 60 riding on the car device 10.

The shape of the handle 61 includes a rod shape, a ring shape, etc. The shape of the handle 61 is not particularly limited. The other configurations in this embodiment are the same as in the first embodiment.

In such an elevator, a handle 61 is provided on the starting device rope 42. Therefore, the worker 60 riding on the car device 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. Furthermore, by pulling down the handle 61, the worker 60 can cause the starter main body 41 to apply an actuation braking force to the starter rope 42. Therefore, even if a car running abnormality due to excessive speed or a car running abnormality due to excessive acceleration does not occur, the emergency stop device 13 can be forcibly activated by the operation of the handle 61 by the worker 60.

Embodiment 4.
FIG. 8 is a side view showing an elevator with a temporary device according to the fourth embodiment. FIG. 9 is a top view showing the car device 10 of FIG. The car 12 is provided with a U-shaped bolt 65 as a steady rest member. The U-shaped bolt 65 is provided on the side of the car 12. Two ends of U-shaped bolts 65 are attached to the sides of the cage 12.

The activation device rope 42 is passed through the inside of the U-shaped bolt 65. Thereby, when the car equipment 10 is viewed from above, the starting device rope 42 is surrounded by the U-shaped bolts 65, as shown in FIG. The other configurations in this embodiment are the same as in the first embodiment.

In such an elevator, a U-shaped bolt 65 is provided in the car 12. Furthermore, when the car device 10 is viewed from above, the starting device rope 42 is surrounded by the U-shaped bolts 65. Therefore, the swing width of the starter rope 42 when the starter rope 42 swings laterally can be suppressed by the U-shaped bolt 65. Thereby, the starting device rope 42 can be made less likely to be caught by protrusions present in the hoistway 1, the car equipment 10, etc. In particular, the car device 10 has many protrusions. Therefore, by providing the U-shaped bolt 65 as a steady rest member on the car 12, it is possible to increase the effect of making it difficult for the starting device rope 42 to get caught on a protrusion. Thereby, it is possible to prevent the emergency stop device 13 from malfunctioning due to the starting device rope 42 being caught on a protrusion.

Note that in the fourth embodiment, the U-shaped bolt 65 is used as a steady rest member. However, the steady rest member is not limited to this. For example, a ring-shaped member may be provided in the car 12 as a steady rest member.

Furthermore, the attachment portion of the steady rest member to the car 12 may be a permanent magnet. In this case, the steady rest member is attached to the car 12 by the magnetic force of the permanent magnet. In this way, the steady rest member can be attached to the car 12 without processing the car 12, and the steady rest member can be easily attached to the car 12.

Embodiment 5.
FIG. 10 is a side view showing an elevator with a temporary device according to the fifth embodiment. The activation device rope 42 is provided with a carabiner-like member 71 as a load absorbing portion. In this embodiment, a carabiner-like member 71 is provided at the intermediate portion of the activation device rope 42. The carabiner-like member 71 is more easily deformed in the length direction of the activation device rope 42 than the activation device rope 42 .

A load absorption section limit load level is set for the carabiner-like member 71. When a load greater than the load absorbing section limit load level acts on the carabiner-like member 71, the carabiner-like member 71 deforms.

The magnitude of the load absorption unit limit load level is smaller than the magnitude of the starting device limit load level. The starting device limit load level is a load level at which the starting device main body 41 may fail when a load is applied to the starting device main body 41 via the starting device rope 42.

When the emergency stop device 13 is activated and an excessive load is applied to the activation device rope 42, the carabiner-like member 71 deforms and absorbs the load. Therefore, the magnitude of the load acting on the starter body 41 via the starter rope 42 is smaller than the magnitude of the starter limit load level.

Furthermore, the magnitude of the load absorbing section limit load level is greater than the magnitude of the lifting force at which the emergency stop device 13 operates. Thereby, when the activation device rope 42 is pulled up relative to the car device 10, the carabiner-like member 71 does not deform. Therefore, when the activation device main body 41 applies a working brake force to the activation device rope 42, a sufficient lifting force is transmitted to the emergency stop device 13 from the activation device main body 41 via the activation device rope 42. The other configurations in this embodiment are the same as in the first embodiment.

In such an elevator, a carabiner-like member 71 serving as a load absorbing portion is provided on the starting device rope 42. The carabiner-like member 71 is more easily deformed in the length direction of the activation device rope 42 than the activation device rope 42 . Therefore, even if an excessive load is applied to the starting device rope 42 from the car device 10 after the emergency stop device 13 is activated until the car device 10 stops, the carabiner-like member 71 deforms and absorbs the load. Can be absorbed. Thereby, the magnitude of the load acting on the starter body 41 via the starter rope 42 can be reduced. Therefore, it is possible to prevent failure of the starting device main body 41 and damage to the fixed object to which the starting device main body 41 is attached.

Note that in the fifth embodiment, a carabiner-like member 71 is used as a load absorbing section. However, it is not limited to this. For example, a shock absorber may be provided on the starting device rope 42 as a load absorbing portion. Even in this case, the shock absorber deforms in the length direction of the activation device rope 42 when an excessive load is applied to the activation device rope 42. This causes the load to be absorbed by the shock absorber. Further, a bellows portion obtained by bending a part of the starting device rope 42 into a bellows shape and hardening it may be provided on the starting device rope 42 as a load absorbing portion. Even in this case, when an excessive load is applied to the activation device rope 42, the bellows portion expands and deforms in the length direction of the activation device rope 42. This allows the load to be absorbed by the bellows.

Furthermore, in the fifth embodiment, a carabiner-like member 71 is provided at the intermediate portion of the activation device rope 42. However, it is not limited to this. For example, the connecting end of the activation device rope 42 may be connected to the emergency stop device 13 via the carabiner-like member 71.

Furthermore, 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 activation device rope 42 may be applied to the second, fourth and fifth embodiments.

Furthermore, in the fourth embodiment, the configuration in which the steady rest member is provided in the car 12 is applied to the first embodiment. However, a configuration in which the steady rest member is provided in the car 12 may be applied to the second, third, and fifth embodiments.

Furthermore, in the fifth embodiment, the configuration in which the load absorbing portion is provided in the starting device rope 42 is applied to the first embodiment. However, a configuration in which the load absorbing portion is provided on the starting device rope 42 may be applied to the second to fourth embodiments.

Furthermore, in each of the above embodiments, the starting device rope 42 is made of metal. However, as long as there is no risk that spatter etc. scattered during welding work will adhere to the starter rope 42, the starter rope 42 does not need to be made of metal. Therefore, the starting device rope 42 may be made of resin or the like.

Furthermore, in each of the above embodiments, the weight on the car device 10 side is heavier than the weight on the counterweight 11 side. However, the weight on the car device 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 device 10 from moving upward against the operator's intention. That is, the weight on the car device 10 side only needs to be equal to or greater than the weight on the counterweight 11 side.

Furthermore, in each of the above embodiments, the starting device rope 42 is directly connected to the emergency stop device 13. However, for example, the activation device rope 42 may be connected to the emergency stop device 13 via the lifting rod 32 of the emergency stop actuating device 30. In this way, it is possible to easily secure a work space when connecting the starting device rope 42 to the pulling rod 32. Thereby, the burden of providing the starting device 40 within the hoistway 1 can be further reduced.

Furthermore, in each of the above embodiments, the main body temporary installation step S31 is performed after the elevating 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 elevating body installation step S2, and the main body temporary installation step S31 may be performed after the connection step S32.

Furthermore, in each of the above-described embodiments, the starting device 40 may be provided with a counter that counts the number of times the starting device main body 41 performs the operation of applying the actuation brake force to the starting device rope 42. In this way, it is possible to determine whether or not the activation device 40 can be used using the number of operations of the activation device main body 41 as a guide. Thereby, it is possible to eliminate the activation device 40 whose reliability may have decreased, and it is possible to improve the reliability of the activation device 40 used. The counter may be a mechanical counter or an electrical counter. When using an electric counter, a battery for supplying power to the counter is provided in the starting device main body 41.

In each of the above embodiments, the starting device 40 may be provided with a counter that counts the number of times the length of the starting device rope 42 unwound from the starting device main body 41 exceeds a reference length. In this way, it is possible to determine whether or not the starting device 40 can be used based on the number of times the starting device rope 42 is let out beyond the reference length from the starting device main body 41. Thereby, it is possible to eliminate the activation device 40 whose reliability may have decreased, and it is possible to improve the reliability of the activation device 40 used. The counter may be a mechanical counter or an electrical counter. When using an electric counter, a battery for supplying power to the counter is provided in the starting device main body 41.

Furthermore, in each of the above embodiments, the suspension method in which the car equipment 10 and the counterweight 11 are suspended by the suspension body 9 is a 1:1 roping method. However, it is not limited to this. For example, the suspension method in which the car device 10 and the counterweight 11 are suspended by the suspension body 9 may be a 2:1 roping method.

1 Hoistway, 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 main body, 42 Starting device rope, 43, 51 Winding part, 44, 53 Brake part, 52 Detection part, 61 Handle, 65 U-shaped bolt (steady rest member), 71 Carabiner-like member (load absorption part), 431, 512 Winding body, 441 Rotating part, 442 Brake force generator.

Claims (9)

1. A car device that includes a car and an emergency stop device provided on the car and is movable in a vertical direction within a hoistway, and a starting device main body that is located at a higher position than the emergency stop device in the hoistway. and a starting device rope connected to the starting device main body,
   The starting device main body has a winding section for winding the starting device rope and a brake section,
   The starting device rope is connected to the emergency stop device in a state where it is unwound from the winding unit against the winding force of the winding unit, and
   If 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 section applies a working brake force to the activation device rope to activate the emergency stop device. Add elevator.
2. The winding unit has a winding body that rotates in response to movement of the starting device rope with respect to the starting device main body,
   The brake section includes a rotating section that rotates integrally with the winding body, and a brake force generating section that generates the operational braking force by rotation of the rotating section when the car running abnormality occurs. The elevator according to claim 1.
3. The activation device includes a battery and a detection unit,
   When the detection unit detects that the car running abnormality has occurred, the detection unit stops supplying power from the battery to the brake unit,
   The elevator according to claim 1, wherein the brake section applies the operating braking force to the starting device rope by stopping the supply of electric power from the battery to the brake section.
4. The elevator according to any one of claims 1 to 3, wherein the starting device rope is made of metal.
5. The elevator according to any one of claims 1 to 4, wherein the starting device rope is provided with a handle.
6. The car is provided with a steady rest member,
   The elevator according to any one of claims 1 to 5, wherein the starting device rope is surrounded by the steady rest member when the car is viewed from above.
7. a counterweight movable in the vertical direction within the hoistway;
   a suspension body for suspending the car equipment and the counterweight; and a drive sheave around which the suspension body is wound, and the car equipment and the counterweight are moved in the vertical direction by rotating the drive sheave. Equipped with a hoisting machine that
   The elevator according to any one of claims 1 to 6, wherein the weight on the car equipment side is greater than the weight on the counterweight side.
8. The starting device rope is provided with a load absorbing portion,
   The elevator according to any one of claims 1 to 7, wherein the load absorbing portion is more easily deformed than the starting device rope in the length direction of the starting device rope.
9. an elevating body installation step in which car equipment having a car and an emergency stop device provided on the car is movable in the vertical direction in a hoistway;
   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 activation device rope to the emergency stop device;
   After the lifting body installation process, the main body temporary construction process, and the connection process, a car scaffolding process in which work is performed in the hoistway using the car equipment as a scaffold; and after the car scaffolding process, the starting device is removed. Equipped with a removal process,
   The starting device main body has a winding section for winding the starting device rope and a brake section,
   The starting device rope is unwound from the winding unit against the winding force of the winding unit,
   In the main body temporary installation step, the activation device main body is temporarily installed at a higher position than the emergency stop device,
   In the car scaffolding step, when a car running abnormality occurs in which the speed or acceleration of the car equipment becomes excessive when the car equipment moves downward, the brake section applies an operational braking force that activates the emergency stop device. is added to the starting device rope.

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