JP2022114059A - Elevator apparatus - Google Patents

Abstract

To provide an elevator apparatus with an emergency stop device that can improve operational reliability although electrically operated.SOLUTION: This elevator apparatus comprises a car (1), an emergency stop device (2) installed in the car, driving mechanisms (12-20) installed in the car and driving the emergency stop device, and an electric actuator (10) for activating the drive mechanisms. The driving mechanisms are driven by a spring (13). The driving mechanisms comprise a fixing part (14) fixed to one end of the spring, and a position adjuster (60) for setting a fixing position of the fixing part in the car.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to an elevator apparatus having an electrically operated safety device.

An elevator system is equipped with a governor and an emergency stop device for constantly monitoring the ascending/descending speed of a car and for emergency stopping a car that has fallen into a predetermined overspeed condition. In general, the car and the governor are connected by a governor rope, and when an overspeed condition is detected, the governor restrains the governor rope and activates the emergency stop device on the car side to bring the car to an emergency stop. there is

In such an elevator system, since a long governor rope is laid in the hoistway, it is difficult to save space and reduce costs. In addition, when the governor rope swings, the structures in the hoistway and the governor rope tend to interfere with each other.

On the other hand, there has been proposed a safety device that operates electrically without using a governor rope. As a conventional technology related to such a safety device, the technology described in Patent Document 1 is known.

In this prior art, a drive shaft for driving a safety device and an operating mechanism for operating the drive shaft are provided on the car. The operating mechanism includes a movable iron core mechanically connected to the drive shaft and an electromagnet that attracts the movable iron core. The drive shaft is biased by a drive spring, but normally the movement of the drive shaft is restrained by the operating mechanism because the electromagnet is energized and the movable iron core is attracted.

In an emergency, the electromagnet is demagnetized to release the restraint of the drive shaft, and the drive shaft is driven by the biasing force of the drive spring. As a result, the safety device operates to bring the car to an emergency stop.

Also, when returning the safety device to the normal state, the electromagnet is moved to approach the movable iron core that was moved in an emergency. When the electromagnet contacts the movable core, the electromagnet is energized and the movable core is attracted to the electromagnet. Further, the electromagnet is driven while the movable iron core is attracted to the electromagnet, and the movable iron core and the electromagnet are returned to the normal standby position.

WO2020/110437

In the conventional technology described above, the urging force of the drive spring to the drive shaft may fluctuate due to dimensional tolerances and assembly tolerances of the components, which may reduce the reliability of the operation of the drive mechanism that drives the safety device. Therefore, there is a risk that the reliability of the operation of the safety device will be reduced.

SUMMARY OF THE INVENTION Accordingly, the present invention provides an elevator apparatus equipped with a safety device capable of improving operational reliability while operating electrically.

In order to solve the above problems, an elevator apparatus according to the present invention includes a car, a safety device provided in the car, a drive mechanism provided in the car for driving the safety device, and a drive mechanism for operating the safety device. an electric actuator, wherein the drive mechanism is driven by a spring, the drive mechanism includes a fixed part to which one end of the spring is fixed, and a position adjuster for setting the fixed position of the fixed part in the car. And prepare.

According to the present invention, since the reliability of the operation of the drive mechanism for driving the safety device is improved, the reliability of the operation of the electrically operated safety device is improved. This will be clarified by the description of the embodiments below.

1 is a schematic configuration diagram of an elevator apparatus that is an embodiment; FIG. It is a front view which shows the mechanism part of the electric actuator in an Example (standby state). It is a front view which shows the mechanism part of the electric actuator in an Example (operating state). FIG. 2 is a top perspective view showing a detailed configuration of a position adjuster 60 in FIG. 1; FIG. 10 is a partial front view of the drive mechanism, showing an example of adjustment of the tilt of the fixed portion by the position adjuster;

Hereinafter, an elevator apparatus, which is one embodiment of the present invention, will be described with reference to the drawings. In each figure, the same reference numbers denote the same components or components with similar functions.

FIG. 1 is a schematic configuration diagram of an elevator system that is an embodiment of the present invention.

As shown in FIG. 1, the elevator system includes a car 1, a position sensor 3, an electric actuator 10, drive mechanisms (12 to 20), a lifting rod 21, and a safety device 2. .

A car 1 is suspended by a main rope (not shown) in a hoistway provided in a building, and is slidably engaged with a guide rail 4 via a guide device (not shown). . When the main rope is friction-driven by a driving device (hoisting machine: not shown), the car 1 ascends and descends in the hoistway.

A position sensor 3 is provided in the car 1 to detect the position of the car 1 in the hoistway and constantly detect the ascending/descending speed of the car 1 from the detected position of the car 1 . Therefore, the position sensor 3 can detect that the car ascending/descending speed exceeds the predetermined overspeed.

In this embodiment, the position sensor 3 includes an image sensor, and detects the position and speed of the car 1 based on the image information of the surface condition of the guide rail 4 acquired by the image sensor. For example, the position of the car 1 is detected by collating the image information of the surface condition of the guide rail 4 measured in advance and stored in the storage device with the image information obtained by the image sensor.

As the position sensor, a rotary encoder that is provided on the car and rotates as the car moves may be used.

The electric actuator 10 is an electromagnetic actuator in this embodiment, and is arranged above the car 1 . The electromagnetic operator has, for example, a movable piece or a movable rod operated by a solenoid or electromagnet. The electric actuator 10 is activated when the position sensor 3 detects a predetermined overspeed condition of the car 1 . At this time, the pulling rod 21 is pulled up by the drive mechanism (12-20) mechanically connected to the operating lever 11. As shown in FIG. As a result, the safety device 2 is brought into a braking state.

The drive mechanisms (12-20) will be described later.

The safety devices 2 are arranged on the right and left sides of the car 1 one by one. A pair of brakes (not shown) included in each safety device 2 are movable between a braking position and a non-braking position, sandwich the guide rail 4 at the braking position, and rise relatively as the car 1 descends. Then, a braking force is generated by the frictional force acting between the brake shoe and the guide rail 4 . As a result, the safety device 2 is actuated when the car 1 is in an overspeed condition to bring the car 1 to an emergency stop.

The elevator system of this embodiment has a so-called ropeless governor system that does not use a governor rope. ), the power supply to the drive (hoist) and to the control device controlling this drive is cut off. Further, when the descending speed of the car 1 reaches a second overspeed (for example, a speed not exceeding 1.4 times the rated speed), the electric actuator 10 provided in the car 1 is electrically driven, causing an emergency. The stop device 2 is operated to bring the car 1 to an emergency stop.

In this embodiment, the ropeless governor system is composed of the position sensor 3 and a safety control device that determines the overspeed condition of the car 1 based on the output signal of the position sensor 3 . This safety control device measures the speed of the car 1 based on the output signal of the position sensor 3, and when it is determined that the measured speed has reached the first overspeed, the power supply of the drive device (hoisting machine) and It outputs a command signal for shutting off the power supply of the control device that controls this drive device. Further, when the safety control device determines that the measured speed has reached the second overspeed, it outputs a command signal for operating the electric actuator 10 .

As described above, when the pair of brakes included in the safety device 2 is pulled up by the lifting rod 21, the pair of brakes grip the guide rail 4. As shown in FIG. The lifting rod 21 is driven by a drive mechanism (12-20) connected to the electric actuator 10. As shown in FIG.

The configuration of this drive mechanism will be described below.

The operating lever 11 of the electric actuator 10 and the first operating piece 16 are connected to form a substantially T-shaped first link member. The operating lever 11 and the first operating piece 16 constitute a T-shaped head and foot, respectively. The substantially T-shaped first link member connects the operating lever 11 and the first operating piece 16 to the crosshead 50 (car frame), which is a structural member of the car 1 , via the first operating shaft 19 . is rotatably supported by the upper frame of the One (left side in the figure) end of a pair of lifting rods 21 is connected to the end of the operating piece 16 which is the foot of the T-shape, opposite to the connecting portion between the operating lever 11 and the operating piece 16 .

The connecting piece 17 and the second operating piece 18 are connected to form a substantially T-shaped second link member. The connecting piece 17 and the second operating piece 18 constitute a T-shaped head and foot, respectively. The substantially T-shaped second link member is rotatably supported by the crosshead 50 via the second operating shaft 20 at the connecting portion between the connecting piece 17 and the second operating piece 18 . The other end (left side in the figure) of the pair of lifting rods 21 is attached to the end of the second operating piece 18, which is the foot of the T-shape, opposite to the connecting portion between the connecting piece 17 and the second operating piece 18. are connected.

The end of the operating lever 11 extending from the inside of the housing 30 to the outside and the end of the connecting piece 17 nearer to the upper part of the car 1 than the second operating shaft 20 are connected to the car. 1 are connected to one end (left side in the figure) and the other end (right side in the figure) of a drive shaft 12 lying on the upper side.

The operating lever 11 extends outside the housing 30 through an opening (not shown) in the upper surface of the housing 30 . The opening is covered with a cover member 31 . This prevents dust and foreign matter from entering the housing 30 through the opening. A slit portion (not shown) is provided in the cover member 31 in the moving direction of the operating lever 11, and the operating lever 11 slidably penetrates the slit portion. Therefore, the operating lever 11 can move without being hindered by the cover member 31 .

The drive shaft 12 movably passes through a fixing portion 14 fixed to the crosshead. Further, the drive shaft 12 passes through the pressing member 15 , and the pressing member 15 is fixed to the drive shaft 12 . The pressing member 15 is positioned on the second link member (connecting piece 17, second operating piece 18) side of the fixed portion 14. As shown in FIG. An elastic drive spring 13 is positioned between the fixed portion 14 and the pressing member 15 , and the drive shaft 12 is movably inserted through the drive spring 13 . In addition, in this embodiment, a coil-shaped spring is applied as the drive spring 13 .

In this embodiment, the fixing portion 14 is fixed to the crosshead 50 by bolting. A bolt (not shown) passes through an elongated hole provided in the fixing portion 14 . Thereby, the fixing position of the fixing portion 14 with respect to the crosshead 50 can be adjusted. A position adjuster 60 for setting the fixing position of the fixing portion 14 is fixed to the crosshead 50 . The drive shaft 12 passes through the position adjuster 60 so as to be movable in the longitudinal direction of the drive shaft 12 .

Note that one end of the drive spring 13 is fixed to the fixing portion 14 in this embodiment. Accordingly, one end of the drive spring 13 is fixed to the crosshead 50 via the fixing portion 14 . Also, the other end of the drive spring 13 is fixed to the pressing member 15 . Therefore, the other end of the drive spring 13 is fixed to the drive shaft 12 via the pressing member 15 . Thus, one end of the drive spring 13 is a fixed end and the other end of the drive spring 13 is a free end that moves together with the pressing portion of the drive shaft 12 .

The support of the member by the crosshead 50 and the fixing of the member to the crosshead may be performed directly on the crosshead 50 or via a support member fixed to the crosshead 50 .

In this embodiment, when the position adjuster 60 adjusts the fixing position of the fixing portion 14 , the position of the fixing portion 14 with respect to the drive shaft 12 is adjusted. Thereby, the direction and magnitude of the biasing force (elastic force) of the drive spring 13 that the drive shaft 12 receives at the pressing member 15 can be adjusted. Therefore, the drive shaft 12 can be reliably driven by the drive spring 13 when the electric actuator 10 is operated.

When the electric actuator 10 is operated, that is, when the electromagnet is de-energized in this embodiment, the electromagnetic force restraining the movement of the operating lever 11 against the biasing force of the drive spring 13 disappears. The biasing force of the drive spring 13 applied to 15 drives the drive shaft 12 along the longitudinal direction. Therefore, the first link member (operating lever 11, first operating piece 16) rotates around the first operating shaft 19, and the second link member (connecting piece 17, second operating piece 18) rotates. rotates about the second actuation axis 20 . As a result, one lifting rod 21 connected to the first operating piece 16 of the first link member is driven and lifted, and the other lifting rod connected to the second operating piece 18 of the second link member is pulled up. 21 is driven and pulled up.

FIG. 2 is a front view showing the mechanical parts housed in the housing 30 of the electric actuator 10 in this embodiment, in the installation state of FIG. In FIG. 2, the safety device is in a non-braking state, and the electric actuator 10 is in a standby state. That is, the elevator installation is in normal operating condition.

As shown in FIG. 2, in the standby state, a movable member 34 connected to the operating lever 11 causes an electromagnet 35 whose magnetic pole surface is opposed to the movable member 34 and whose coil is energized to generate an electromagnetic force. is adsorbed by As a result, the movement of the operating lever 11 is restrained against the biasing force of the drive spring 13 (compression spring). Therefore, the electric actuator 10 restrains the movement of the drive mechanism against the biasing force of the drive spring 13 .

The operating lever 11 is connected to the movable member 34 via a connection bracket 38 which is a connection member rotatably provided on the movable member 34 . One end of the operating lever 11 is fixed to the connection bracket 38 .

In this embodiment, the movable member 34 is made of a magnetic material. As the magnetic material, a soft magnetic material such as low carbon steel or permalloy (iron-nickel alloy) is preferably applied. At least the portion of the movable member 34 that attracts the electromagnet 35 may be made of a magnetic material.

Other mechanism units (36, 37, 40-42) in FIG. 2 will be described later.

FIG. 3 is a front view showing the mechanical parts housed in the housing 30 of the electric actuator 10 in this embodiment, in the installation state of FIG. In FIG. 3, the safety device is in the braking state, and the electric actuator 10 is in the operating state. That is, the elevator system is in a state of being stopped by the safety device.

When the excitation of the electromagnet 35 is stopped by a command from a safety control device (not shown), the electromagnetic force acting on the movable member 34 disappears. As a result, the operation lever 11 is released from the restraint caused by the movable member 34 being attracted to the electromagnet 35 . The biasing force drives the drive shaft 12 .

When the drive shaft 12 is driven, the operating lever 11 and the first operating piece (first link member) connected to the drive shaft 12 rotate around the first operating shaft 19 . Thereby, the pulling rod 21 connected to the first operating piece 16 is pulled up.

When the operating lever 11 rotates as described above, the movable member 34 connected to the operating lever 11 moves along the rotating direction of the operating lever 11 from the position of the movable member 34 shown in FIG. to the position of the movable member 34 shown in FIG.

In order to return the electric actuator 10 to the standby state as shown in FIG. from the moving position (Fig. 3) to the standby position (Fig. 2).

As shown in FIG. 3, the motorized actuator 10 has a lead screw 36 located on the planar portion of the base plate 40 for driving the movable member 34 . The feed screw is rotatably supported by a first feed screw support member 41 and a second feed screw support member 42 fixed on the plane of the substrate 40 . Electromagnet 35 is fixed to support plate 49 with lead nut 39 . A feed nut 39 is screwed onto the feed screw 36 . Feed screw 36 is rotated by motor 37 . The motor 37 is fixedly supported on the plane of the board 40 by a motor fixing bracket 55 .

In addition, the substrate 40 is fixed on the plane portion of the crosshead 50 . Therefore, the members and components that make up the electric actuator 10 are supported or fixed to the plane portion of the crosshead 50 via the substrate 40 . In addition, the members and parts constituting the electric actuator 10 are supported or fixed to the crosshead 50 via the substrate 40 . The members and parts constituting the electric actuator 10 may be directly supported or fixed to the crosshead 50 without the board 40 interposed therebetween.

To return the electric actuator 10 to the standby state, first, while exciting the electromagnet 35 , the motor 37 is driven to rotate the feed screw 36 . Rotation of the motor 37 is converted into linear movement of the electromagnet 35 along the axial direction of the feed screw 36 by the rotating feed screw and the feed nut 39 provided on the electromagnet 35 . As a result, the electromagnet 35 approaches the moving position of the movable member 34 shown in FIG. When the movable member 34 is attracted to the electromagnet 35, the direction of rotation of the motor 37 is reversed while the excitation of the electromagnet 35 is continued, and the feed screw 36 is reversed. As a result, the movable member 34 moves together with the electromagnet 35 to the standby position.

FIG. 4 is a top perspective view of the position adjuster 60 in FIG. 1 in its installed state, showing the detailed configuration of the position adjuster 60 in FIG.

The fixed portion 14 has a bolt fastening portion 14a fixed to the crosshead 50 with a bolt 70 and a nut 71, and a spring contact portion 14b with which the drive spring 13 contacts. In addition, in the present embodiment, the bolt fastening portion 14a and the spring contact portion 14b are integrally formed by an L-shaped member. The drive shaft 12 passes through the hole portion 14c in the spring contact portion 14b. The diameter of hole portion 14 c is larger than the diameter of drive shaft 12 . Therefore, the drive shaft 12 movably passes through the hole 14c.

The position adjuster 60 has a bolt support portion 61 to which bolts 62 and 65 for setting the fixed position of the fixed portion 14 are attached. The bolt support portion 61 faces the spring contact portion 14 b of the fixed portion 14 and is fixed to the crosshead 50 . The bolt support portion 61 has a notch portion 61a located between the bolts 62,65. The drive shaft 12 passes through the notch 61a. The width of the notch 61 a is larger than the diameter of the drive shaft 12 . Therefore, the drive shaft 12 movably passes through the notch 61a.

In the position adjuster 60, nuts 63 and 66 are fixed to both sides of the notch portion 61a of the bolt support portion 61. As shown in FIG. Bolts 62 and 65 are threaded with nuts 63 and 66, respectively. Each fixing position of the bolts 62 and 65 in the bolt support portion 61 has a hole through which the bolts 62 and 65 pass. Therefore, each of the bolt shaft 64 of the bolt 62 and the shaft portion of the bolt 65 (not shown in FIG. 4) passes through the nut and the hole of the bolt support portion 61 to extend from the bolt support portion 61 to the fixing portion 14. It protrudes toward the spring contact portion 14b at .

The fixing position of the fixing portion 14 is set by the tips of the bolt shafts of the bolts 62 and 65 coming into contact with the bolt support portion 61 . Further, when the bolts 62 and 65 are turned to change the length of the bolt shaft projecting from the bolt support portion 61 toward the spring contact portion 14b, the position of the tip of the bolt shaft changes. Thereby, the setting of the fixing position of the fixing portion 14 can be changed.

In this embodiment, the fixed portion 14 is fixed to the crosshead 50 by a bolt 70 and a nut 71 at the bolt fastening portion 14a. The bolt fastening portion 14a has an elongated hole 74 whose width in the direction perpendicular to the longitudinal direction is larger than the diameter of the bolt 70. As shown in FIG. A shaft portion 73 of the bolt 70 passes through a long hole 74 and a bolt hole 75 provided at a mounting position of the bolt 70 in the crosshead 50 .

In this embodiment, the fixed portion 14 has a pair of elongated holes ("74" in FIG. 4) located on both sides of the drive shaft 12, as shown in FIGS. The longitudinal direction of each slot extends along the axial direction of the drive shaft 12 . A bolt 70 (FIG. 4) passes through each of the pair of elongated holes. Therefore, the fixed portion 14 is fixed to the crosshead 50 by two sets of bolts and nuts positioned on both sides of the drive shaft 12 .

The mounting positions of the bolts 70 on the crosshead 50 are set by bolt holes 75 . The fixing position of the fixing portion 14 can be moved from the position of the bolt hole 75 within the longitudinal and width directions of the elongated hole 74 . Therefore, the fixing position of the fixing portion 14 can be set by the bolts 62 and 65 of the position adjuster 60 described above within the range of positions where the fixing portion 14 can be fixed. In addition, since the position of the bolt 70 within the long hole 74 can be moved within the longitudinal and width directions of the long hole 74, the inclination of the fixed portion 14 with respect to the axial direction of the drive shaft 12 can be changed. Therefore, by making the lengths of the bolt shafts of the bolts 62 and 65 projecting from the bolt supporting portion different, the inclination of the fixing portion 14 can be changed to set the fixing position.

FIG. 5 is a partial front view of the drive mechanism showing an example of adjusting the inclination of the fixed portion 14 by the position adjuster.

In FIG. 5, the holes 14c through which the drive shaft 12 passes in the fixing portion 14 and the holes through which the bolts 62 and 65 pass in the bolt support portion 61 are represented by hidden lines (broken lines). For convenience, it is represented by a solid line. Also, bolts and nuts for fixing the fixing portion 14 are omitted from the drawing.

In FIG. 5, of the bolts 62 and 65 in the position adjuster, the bolt 65 is turned in a loosening direction to move the tip of the head from position A to position B in the figure. In the example of FIG. 5, before the bolt 65 moves (solid line), the bolt shafts 64 and 67 protruding from the bolt support portion 61 toward the fixed portion 14 are the same in the bolts 62 and 65. After the movement of 65, the bolt 65 is shortened by the movement distance. Therefore, at the fixed position of the fixed part 14 set by the position adjuster, the fixed part 14 tilts clockwise, that is, clockwise, as indicated by the imaginary line (two-dot chain line) in FIG. changes.

In this example, even if the inclination of the fixed portion 14 changes, the movement of the bolt hole 75 with respect to the long hole 74 is within the range of the width and length of the long hole 74 . Therefore, the fixed portion 14 can be fixed by bolting at the fixed position set by the position adjuster.

Instead of the elongated hole 74, holes of various shapes, such as a round hole whose diameter is larger than the diameter of the bolt, may be applied. In other words, the bolt hole of the fixing portion 14 may be any size that is larger than the outer diameter of the bolt and that allows the position of the bolt to pass through the hole to be variable.

By adjusting the inclination of the fixed portion 14, the magnitude of the biasing force of the drive spring 13 to the pressing member 15 of the drive shaft 12 becomes a magnitude corresponding to the elastic force of the drive spring 13, and the direction of the biasing force is adjusted. is the driving direction of the drive shaft 12, that is, the longitudinal direction. This improves the reliability of the operation of the drive mechanism.

As described above, according to this embodiment, the position adjuster 60 can adjust the fixing position of the fixing portion 14 to which one end of the drive spring 13 is fixed. This improves the reliability of the operation of the drive mechanism that drives the safety device by the biasing force of the drive spring 13 when the electric actuator 10 is actuated. Therefore, the reliability of the operation of the safety device is improved even though it is electrically operated.

Further, according to this embodiment, the fixed portion 14 is positioned by contacting the tip of the bolt of the position adjuster 60 with the fixed portion 14 . As a result, the fixing portion 14 can change its fixing position by the elongated hole 74 and is pressed by the driving spring 13, but the fixing position is maintained. Furthermore, since the fixed portion is positioned at two points by the tips of the two bolt shafts 64 and 67, the fixed position is maintained with high reliability. Note that the number of bolts is not limited to two, and may be plural.

According to this embodiment, the reliability of the operation of the electric actuator 10 is improved not only when the overspeed condition of the car is detected, but also when power failure occurs.

It should be noted that the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations. Moreover, it is possible to add, delete, or replace a part of the configuration of the embodiment with another configuration.

For example, the electric actuator 10 may be provided not only on the upper part of the car 1, but also on the lower part or the side part. In this case, the electric actuator and the drive mechanism of the safety device are appropriately provided on the structural member of the car.

DESCRIPTION OF SYMBOLS 1... Car, 2... Emergency stop device, 3... Position sensor, 4... Guide rail, 10... Electric actuator, 11... Operation lever, 12... Drive shaft, 13... Drive spring, 14... Fixing part, 14a... Bolt Fastening portion 14b Spring contact portion 14c Hole 15 Pressing member 16 Actuating piece 17 Connecting piece 18 Actuating piece 19 Actuating shaft 20 Actuating shaft 21 Lifting rod DESCRIPTION OF SYMBOLS 30... Housing, 31... Cover member, 34... Movable member, 35... Electromagnet, 36... Feed screw, 37... Motor, 38... Connection bracket, 39... Feed nut, 40... Substrate, 41... Feed screw support member, 42 Feed screw support member 43 Engagement pin 49 Support plate 50 Crosshead 55 Motor fixing bracket 60 Position adjuster 61 Bolt support part 61a Notch 62 Bolt 63... Nut, 64... Bolt shaft, 65... Bolt, 66 Nut, 67... Bolt shaft, 70... Bolt, 71... Nut, 73... Shaft part, 74... Long hole, 75... Bolt hole

Claims (10)

car and
a safety device provided in the car;
a drive mechanism provided in the car for driving the safety device;
an electric actuator that operates the drive mechanism;
In an elevator installation comprising
The drive mechanism is driven by a spring,
The drive mechanism is
a fixing part to which one end of the spring is fixed;
a position adjuster for setting a fixed position of the fixed part in the car;
An elevator system comprising: The elevator installation of claim 1, wherein
An elevator apparatus according to claim 1, wherein an inclination of the fixed portion can be adjusted by the position adjuster. The elevator installation of claim 1, wherein
The elevator apparatus, wherein the fixing position of the fixing portion is variable. The elevator installation of claim 1, wherein
The fixing part has a hole and is fixed to the car by a bolt passing through the front hole,
An elevator apparatus according to claim 1, wherein said hole is larger than the outer diameter of said bolt. The elevator installation of claim 1, wherein
The elevator apparatus according to claim 1, wherein the position adjuster includes a bolt, and the fixing position of the fixing portion is set by the tip of the shaft of the bolt. An elevator installation according to claim 5, wherein
An elevator apparatus, wherein the position adjuster includes a plurality of the bolts. The elevator installation of claim 1, wherein
The drive mechanism includes a drive shaft connected to the safety device,
An elevator apparatus, wherein the drive shaft is biased by the spring. An elevator installation according to claim 7, wherein
the spring is a coiled compression spring,
An elevator apparatus, wherein the drive shaft is inserted through the spring. The elevator installation of claim 1, wherein
An elevator apparatus according to claim 1, wherein the electric actuator restrains the drive mechanism against the biasing force of the spring in a standby state, and releases the restraint of the drive mechanism when the safety device operates. An elevator installation according to claim 9, wherein
The electric actuator is
an operating lever connected to the drive mechanism;
a movable member connected to the operating lever;
an electromagnet facing the movable member;
with
In the standby state, movement of the operating lever is restrained by the movable member being attracted to the electromagnet,
An elevator apparatus, wherein the electromagnet is demagnetized when the safety device operates.

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