Elevator device installation method, and elevator device

Abstract

The present invention discloses an elevator device installation method with which the reliability of an electric operation device that actuates an emergency stop device is improved. Before being carried into an installation place, the electric operation device is attached to a structure member (50) via a first bracket (101) connected to the structure member such that the position thereof can be adjusted, a second bracket (102) connected to a movable element actuator such that the position thereof can be adjusted, and a third bracket (110) that abuts on a predetermined position of the first bracket and positions the first bracket and the second bracket relative to each other. Further, while retaining the connection between the second bracket and the third bracket, the electric operation device is divided into: a first part comprising the first bracket connected to the structural member; and a second part comprising the movable element actuator, the second bracket connected to the movable element actuator, and the third bracket. In the installation place, the first part and the second part are connected such that the third bracket abuts on the predetermined position of the first bracket.

Description

Elevator installation method and elevator device

[0001] The present invention relates to a method for installing an elevator system equipped with an electrically operated safety device, and to an elevator system equipped with an electrically operated safety device.

[0002] An elevator system is equipped with a governor and an emergency stop device that constantly monitors the ascending and descending speed of the car and brings the car to an emergency stop if it experiences a predetermined overspeed. Generally, the car and the governor are connected by a governor rope, and when an overspeed state is detected, the governor restrains the governor rope, activating the car's emergency stop device and bringing the car to an emergency stop.

[0003] In such elevator systems, the long governor rope is laid inside the hoistway, making it difficult to reduce space and costs. Furthermore, if the governor rope sways, it is likely to interfere with structures inside the hoistway.

[0004] In response to this, an electrically operated emergency stop device has been proposed that does not use a governor rope. A known prior art related to such an emergency stop device is disclosed in Patent Document 1.

[0005] In this conventional technology, a drive mechanism with a drive shaft that drives the safety device and an electric actuator (operating mechanism) that operates the drive shaft are provided on the car. The electric actuator includes a mover (movable iron core) mechanically connected to the drive shaft and an electromagnet that attracts the mover. The drive shaft is biased by a drive spring, but under normal circumstances, the electromagnet is energized and the mover is attracted, so the movement of the drive shaft is restricted by the electric actuator.

[0006] In an emergency, the electromagnet is demagnetized, releasing the drive shaft, and the drive shaft is driven by the biasing force of the drive spring, which activates the emergency stop device and brings the car to an emergency stop.

[0007] When returning the safety device to its normal state, the electromagnet is energized, then moved closer to the moving element that moved in the emergency, causing the moving element to be attracted to the electromagnet. With the moving element attracted to the electromagnet, the electromagnet is driven to return the moving element and electromagnet to their normal standby positions.

[0008] Japanese Patent Application Laid-Open No. 2021-130550

[0009] In the above-mentioned conventional technology, the mover and the mover actuation unit that includes an electromagnet and operates the mover, which constitute the electric actuator, are attached separately to predetermined locations. Therefore, unless the mover and the mover actuation unit are properly aligned, the electric actuator will not operate reliably, making it difficult to ensure the reliability of the emergency stop device.

[0010] Therefore, the present invention provides an elevator installation method that can ensure highly reliable operation of an electric operator, and an elevator system that includes an emergency stop device that is operated by an electric operator that operates highly reliably.

[0011] In order to solve the above problems, the present invention provides an installation method for an elevator system comprising: a car; an emergency stop device provided in the car; and an electric operator provided in the car for actuating the emergency stop device, the electric operator comprising a mover mechanically linked to the emergency stop device and a mover actuator for actuating the mover. Before the electric operator is transported to an installation site, the electric operator is attached to a structural member of the car via a plurality of brackets. The plurality of brackets include a first bracket connected to the structural member so as to be positionably adjustable along a first direction, a second bracket connected to the mover actuator so as to be positionably adjustable along a second direction, and a third bracket connected to the second bracket and abutting against a predetermined position of the first bracket to align the first bracket and the second bracket with respect to each other. After the electric actuator is attached to the structural member, and before the electric actuator is transported to the installation site, the electric actuator is separated into a first part consisting of the first bracket connected to the structural member and a second part consisting of the mover actuation part, the second bracket connected to the mover actuation part, and the third bracket while maintaining the connection between the second bracket and the third bracket. At the installation site, the first part and the second part are connected so that the third bracket abuts against a predetermined position on the first bracket.

[0012] In order to solve the above problems, an elevator system according to the present invention includes a car, an emergency stop device provided in the car, and an electric operator provided in the car for actuating the emergency stop device, the electric operator including a mover mechanically linked to the emergency stop device and a mover actuator for actuating the mover. The electric operator is provided on the car via a plurality of brackets. The plurality of brackets include a structural member, a first bracket connected to the structural member and adjustable in position along a first direction, a second bracket connected to the mover actuator for adjustable in position along a second direction, and a third bracket connected to the second bracket and abutting against a predetermined position of the first bracket to align the first bracket and the second bracket with respect to each other.

[0013] According to the present invention, the reliability of the operation of the electric actuator is improved.

[0014] Problems, configurations, and effects other than those described above will become apparent from the following description of the embodiments.

[0015] 1. A structural diagram of the area around the car of the elevator apparatus according to the first embodiment. A structural diagram showing an example of an emergency stop device 200. A front view showing the mechanical part of the electric actuator 10 according to the first embodiment in the installed state of FIG. 1. A view seen from arrow AA in FIG. 3. An exploded view showing the state of the electric actuator when the elevator apparatus is installed. A structural diagram of the area around the car of the elevator apparatus according to the second embodiment. A front view showing the mechanical part of the electric actuator 300 according to the second embodiment in the installed state of FIG. 6. A view seen from arrow A in FIG. 6. A front view showing the mechanical part of the electric actuator according to the third embodiment in the installed state of FIG. 1. A rear view showing the mechanical part of the electric actuator according to the third embodiment in the installed state of FIG. 1. A view seen from arrow AA in FIGS. 9 and 10. An exploded view showing the state of the electric actuator when the elevator apparatus is installed.

[0016] An elevator system according to an embodiment of the present invention will be described below with reference to the drawings in Examples 1 to 3. In each drawing, the same reference numerals indicate the same components or components with similar functions.

[0017] However, in the following description, the terms "first bracket," "second bracket," and "third bracket" each indicate components with similar functions, regardless of the reference numerals attached thereto.

[0018] FIG. 1 is a structural diagram of the elevator car and its surroundings according to the first embodiment of the present invention.

[0019] As shown in FIG. 1, the elevator system includes a car (1, 50, 51, 52), an emergency stop device 200, and an electric operating device 10 that is mechanically linked to the emergency stop device 200 via a drive mechanism (11-20) and a first lifting rod 21.

[0020] In the car, a car chamber 1 (including a floor panel, not shown) is supported by a car frame consisting of an upper frame including a crosshead 50, vertical frames 51 (slings), and a lower frame 52. The car is suspended by a main rope (not shown) in a hoistway provided in the building, and slidably engages with a guide rail 4 via a guide device 9. When the main rope is frictionally driven by a drive device (hoisting machine, not shown), the car moves up and down in the hoistway.

[0021] The electric operating device 10 operates the safety device 200 via the drive mechanism (11 to 20) and the first lifting rod 21.

[0022] The drive mechanisms (11 to 20) are supported by a support provided on the car chamber 1, which in Example 1 is a crosshead 50 constituting the upper frame. In Example 1, the crosshead 50 is formed by combining multiple steel members (channel steel) having a specific cross-sectional shape (C-shape, U-shape (Japanese katakana character), etc.).

[0023] The electric actuator 10 is provided below the drive mechanisms (11 to 20). In the first embodiment, the electric actuator 10 is attached to the lower flat surface of the steel material constituting the crosshead 50 via a bracket portion shown by the two-dot chain line in FIG.

[0024] The electric operator 10 is activated when the descent speed of the car detected by a speed detector (not shown) reaches a predetermined overspeed (for example, a speed not exceeding 1.4 times the rated speed). At this time, the electric operator 10 is activated in response to a command signal from a safety control device (not shown) that monitors the speed of the car detected by the speed detector. The speed detector and the safety control device are provided in the car.

[0025] When the electric operator 10 is actuated, a drive mechanism (11 to 20) mechanically connected to the electric operator 10 pulls up a first lifting rod 21 mechanically connected to the safety device 200. When the first lifting rod 21 is pulled up, the brake shoe (see FIG. 2) of the safety device 200 is pulled up by the first lifting rod 21. This puts the safety device 200 into a braking state.

[0026] One safety device 200 is disposed on each side of the car. Each safety device 200 is provided with a pair of brake shoes (not shown), which are movable between a braking position and a non-braking position, and in an emergency are moved from the non-braking position to the braking position by a first lifting rod 21. In the braking position, the pair of brake shoes (not shown) clamp the guide rail 4, and when the brake shoes rise relatively due to the descent of the car, a braking force is generated by the friction acting between the brake shoes and the guide rail 4. As a result, the safety device 200 is activated when the car enters an overspeed state, bringing the car to an emergency stop.

[0027] The configuration and operation of the drive mechanisms (11 to 20) will be described below.

[0028] As shown in Figure 1, an operating lever 11 connected to an electric actuator 10 is connected to a first operating piece 16, forming a substantially T-shaped first link member. The operating lever 11 and the first operating piece 16 form the head and foot of the T, respectively. The substantially T-shaped first link member is rotatably supported on a crosshead 50 via a first operating shaft 19 at the connection between the operating lever 11 and the first operating piece 16. One end of a pair of first lifting rods 21 (on the left side in Figure 1) is connected to the end of the operating piece 16, which forms the foot of the T, on the side opposite the connection between the operating lever 11 and the operating piece 16.

[0029] 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 form the head and foot of the T, respectively. The substantially T-shaped second link member is rotatably supported on the crosshead 50 via the second operating shaft 20 at the connection portion between the connecting piece 17 and the second operating piece 18. The other end (on the right side in FIG. 1 ) of the pair of first lifting rods 21 is connected to the end of the second operating piece 18, which forms the foot of the T, on the opposite side from the connection portion between the connecting piece 17 and the second operating piece 18.

[0030] The end of the operating lever 11 and the end of the connecting piece 17, whichever is closer to the top of the car 1 than the second operating shaft 20, are respectively connected to one end (left side in Figure 1) and the other end (right side in Figure 1) of the drive shaft 12 lying on the car 1.

[0031] The electric operating device 10 may be covered with a protective cover member. In this case, the operating lever 11 passes through an opening in the cover member and protrudes to the outside of the cover member.

[0032] The drive shaft 12 movably passes through a fixed portion 14 that is fixed to the crosshead 50. The drive shaft 12 also passes through a pressing member 15, which is fixed to the drive shaft 12. The pressing member 15 is located on the second link member (connecting piece 17, second operating piece 18) side of the fixed portion 14. A drive spring 13, which is an elastic body, is located between the fixed portion 14 and the pressing member 15, and the drive shaft 12 is movably inserted through the drive spring 13. In Example 1, a coil-shaped compression spring is used as the drive spring 13.

[0033] In the first embodiment, one end of the drive spring 13 is fixed to the fixed portion 14. Therefore, one end of the drive spring 13 is fixed to the crosshead 50 via the fixed portion 14. Furthermore, 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. In this way, 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.

[0034] The crosshead 50 may support the members or fix the members to the crosshead 50 directly, or via a support member fixed to the crosshead 50 .

[0035] When the electric operator 10 is operated, that is, in the first embodiment, when the power supply to the electromagnet portion of the mover operating portion ("35" in FIG. 3 described later) that operates the mover is cut off, the electromagnetic force that constrains the movement of the operating lever 11 against the biasing force of the drive spring 13 disappears, and the biasing force of the drive spring 13 applied to the pressing member 15 drives the drive shaft 12 along the longitudinal direction. As a result, the first link member (operating lever 11, first operating piece 16) rotates about the first operating shaft 19, and the second link member (connecting piece 17, second operating piece 18) rotates about the second operating shaft 20. As a result, one first lifting rod 21 connected to the first operating piece 16 of the first link member is driven and pulled up, and the other first lifting rod 21 connected to the second operating piece 18 of the second link member is driven and pulled up.

[0036] FIG. 2 is a diagram showing an example of the configuration of the safety device 200. As shown in FIG.

[0037] The actuating lever 212 is rotatable around a rotation shaft 216, which serves as a fulcrum. One end of the first lifting rod 21 ( FIG. 1 ) and one end of a link 217 are connected to one end of the actuating lever 212, respectively. One end of a link 219, which has a rotation shaft 218, which serves as a fulcrum, is connected to the other end of the link 217. The upper end of a second lifting rod 220 is connected to the other end of the link 219, and the brake shoe 214 is engaged with the lower end of the second lifting rod 220.

[0038] Brake shoe 214 is placed on a plate or base provided at the lower end of second lifting rod 220 inside housing 200. Brake shoe 214 also has a lifting pin 223 that engages with the lower end of second lifting rod 220. Note that lifting pin 223 engages with the lower end of second lifting rod 220 but is not fixed thereto, and is engaged via a predetermined amount of play. Therefore, it can move freely within the range of this play.

[0039] When the electric operator 10 (FIG. 1) is activated and the first lifting rod 21 is pulled up, the operating lever 212 rotates counterclockwise around the rotation shaft 216, and the connection between the operating lever 212 and link 217 and the connection between the link 217 and link 219 move downward. At this time, the link 219 rotates clockwise around the rotation shaft 218. Therefore, the second lifting rod 220 is pulled up, and the brake shoe 214 is pulled up. This activates the safety device 200 and puts it into a braking state.

[0040] Fig. 3 shows the mechanical components of the electric actuator 10 in the first embodiment, and is a front view in the installed state shown in Fig. 1. In Fig. 3, the safety device is in a non-braking state, and the electric actuator 10 is in a standby state. In other words, the elevator system is in a normal operating state.

[0041] 4 is a view taken along the line AA in FIG.

[0042] First, the configuration and operation of the electric actuator 10 will be described with reference to FIGS.

[0043] 3, in the standby state, the mover 34 connected to the operating lever 11 faces the magnetic pole face of the electromagnet part provided in the mover operating part 35 that operates the mover 34, and is attracted by electromagnetic force to the excited electromagnet part. This restricts the movement of the operating lever 11 against the biasing force of the drive spring 13 (FIG. 2). Therefore, the electric operating device 10 restricts the movement of the drive mechanism (11 to 20) against the biasing force of the drive spring 13.

[0044] The operating lever 11 is rotatably connected to the mover 34 .

[0045] In the first embodiment, the mover 34 is made of a magnetic material. Preferably, a soft magnetic material such as low carbon steel or permalloy (iron-nickel alloy) is used as the magnetic material. Note that it is sufficient that at least the portion of the mover 34 that is attracted to the electromagnet portion is made of a magnetic material.

[0046] When excitation of the electromagnet portion of the mover operating portion 35 is stopped by a command from a safety control device (not shown), the electromagnetic force acting on the mover 34 disappears. As a result, the constraint on the operating lever 11 caused by the mover 34 being attracted to the electromagnet portion is released, and the drive shaft 12 (FIG. 1) is driven by the biasing force of the drive spring 13 (FIG. 1) in the direction from the fixed portion 14 (FIG. 1) toward the pressing member 15, which is received by the pressing member 15 (FIG. 1) of the drive shaft 12 (FIG. 1).

[0047] When the operating lever 11 rotates, the movable element 34 connected to the operating lever 11 moves from the standby position of the movable element 34 shown in FIG. 3 to the left in FIG.

[0048] To return the electric actuator 10 to the standby state shown in FIG. 3, the moving element 34 is returned from the moving position to the standby position (FIG. 3) by the mechanism (36, 37, 39-42, 55), as will be described next.

[0049] The electric actuator 10 has a feed screw 36 located on the flat surface of the substrate 40 to drive the mover 34. The feed screw 36 is rotatably supported by feed screw support members 41 and 42 fixed on the flat surface of the substrate 40. The mover operating unit 35 is equipped with a feed nut 39. The feed nut 39 is threadedly engaged with the feed screw 36. The feed screw 36 is rotated by a motor 37. The motor 37 is fixedly supported on the flat surface of the substrate 40 by a motor fixing bracket 55.

[0050] To return the electric actuator 10 to the standby state, first, the motor 37 is driven to rotate the feed screw 36. The rotating feed screw 36 and the feed nut 39 provided on the mover actuation unit 35 convert the rotation of the motor 37 into linear movement of the mover actuation unit 35 along the axial direction of the feed screw 36. As a result, the mover actuation unit 35 approaches the movement position of the mover 34. When the electromagnet unit is excited, the electromagnet unit of the mover actuation unit 35 abuts against the mover 34. The mover 34 is attracted to the electromagnet unit by the electromagnetic force generated by the electromagnet unit. Once the mover 34 is attracted to the electromagnet unit, the direction of rotation of the motor 37 is reversed while the electromagnet unit continues to be excited, thereby rotating the feed screw 36 in the reverse direction. As a result, the mover 34 moves to the standby position together with the mover actuation unit 35.

[0051] Next, the state in which the electric operating device 10 is attached to the car side will be described.

[0052] 3 and 4 , the electric operator is attached to a crosshead 50 that constitutes the upper frame of the car via a first bracket 101, a second bracket 102, and a third bracket 110. The first bracket 101 and the third bracket 110 are connected by a bolt 105 and a nut 106. The third bracket 110 and the second bracket 102 are connected by a bolt 104b. That is, the first bracket 101 and the second bracket 102 are connected via the third bracket 110. The first bracket 101 is connected to a lower flat portion of the crosshead 50 by a bolt 104c that threads into the crosshead 50.

[0053] 3 and 4, the base plate 40, on which the mover operating unit 35 that operates the mover 34 is provided, is placed on a horizontal plane portion of the second bracket 102 and is connected to this plane portion by a bolt 104a. The bolt 104a passes through an elongated hole 103a in the base plate 40 and is screwed into the second bracket 102. The bolt 104a may also pass through a hole in the second bracket 102 and be further screwed into a nut.

[0054] The longitudinal direction of the elongated hole 103a is parallel to the axial direction of the feed screw 36 and the movement direction of the mover 34. Therefore, the base plate 40 and the second bracket 102 are connected so that their positions can be adjusted relative to each other along the movement direction of the mover 34.

[0055] 4, the horizontal plane portion of the first bracket 101 is connected to the lower plane portion of the crosshead 50 by a bolt 104c. The bolt 104c passes through an elongated hole 103c in the horizontal plane portion of the first bracket 101 and is screwed into the lower plane portion of the crosshead 50.

[0056] The longitudinal direction of the elongated hole 103c is perpendicular to the axial direction of the feed screw 36 and the movement direction of the mover 34 within the horizontal plane portion of the first bracket 101. Furthermore, the longitudinal direction of the elongated hole 103c is perpendicular to the longitudinal direction of the elongated hole 103a in the base plate portion 40 within the horizontal plane portion of the first bracket 101. Therefore, the first bracket 101 is connected to the crosshead 50 so that its position can be adjusted horizontally and in a direction perpendicular to the movement direction of the mover 34.

[0057] The diameter of the circular holes through which the bolts 105 pass in the first bracket 101 and the third bracket 110 is set to a value that keeps the positional deviation between the first bracket 101 and the third bracket 110 below an allowable value, i.e., a value that substantially eliminates positional deviation. Therefore, by tightening the bolts, the third bracket 110 is fixedly abutted against a predetermined position in the first bracket 101 where the hole through which the bolt 105 passes is provided.

[0058] 4, the vertical flat portion of the third bracket 110 and the vertical flat portion of the second bracket 102 are connected to each other by a bolt 104b. The bolt 104b passes through an elongated hole 103b in the vertical flat portion of the second bracket 102 and is screwed into the vertical flat portion of the third bracket 110. The bolt 104b may also pass through a hole in the third bracket 110 and be further screwed into a nut.

[0059] The longitudinal direction of the elongated hole 103b is perpendicular to the axial direction of the feed screw 36 and the moving direction of the mover 34 in each of the vertical plane portions of the third bracket 110 and the second bracket 102. Furthermore, the longitudinal direction of the elongated hole 103b is perpendicular to the longitudinal directions of the elongated hole 103a in the base plate 40 and the elongated hole 103c in the horizontal plane portion of the first bracket 101 in each of the vertical plane portions of the first bracket 101 and the third bracket 110. Therefore, the first bracket 101 and the second bracket 102 are connected to each other via the third bracket 110 so that their positions can be adjusted along the direction perpendicular to the base plate 40.

[0060] The mounting positions of the mover actuation unit 35 and the mechanism units (36, 37, 39-42, 55) of the electric actuator relative to the crosshead 50 are set by the screw-in positions of the bolts 104a, 104b, and 104c, and can be adjusted in three mutually perpendicular directions by the elongated holes 103a, 103b, and 103c. That is, the relative positions of the mover 34 and the mover actuation unit 35, which are independently mechanically connected to the crosshead 50, can be adjusted in three mutually perpendicular directions. This allows the mover actuation unit 35 of the electric actuator to be positioned so that the mover 34 is accurately held in the standby position and returns to the standby state after actuation. This improves the operational reliability of the electric actuator, and therefore the operational reliability of the electric emergency stop device.

[0061] The position adjustment direction set by the elongated holes 103a, 103b, and 103c can be changed by changing the longitudinal direction of each elongated hole (the same applies to Example 2 described later).

[0062] In Example 1, the third bracket 110 allows the movable member operating part 35 of the electric actuator 10 to be accurately positioned relative to the movable member 34 when installing the elevator, even in a narrow space, as described below.

[0063] FIG. 5 is an exploded view showing the state of the electric operating device when the elevator system is installed.

[0064] The electric actuator of Example 1 is assembled at the manufacturing site before being transported to the installation site, and then attached to the crosshead 50 using the first to third brackets (101, 102, 110) as shown in Figures 3 and 4.

[0065] At this time, the mounting positions of the mover operating unit 35 and the mechanism units (36, 37, 39-42, 55) mounted on the base unit 40 relative to the crosshead 50 are adjusted in three mutually perpendicular directions by the elongated holes 103a, 103b, 103c through which the bolts 104a, 104b, 104c pass, respectively. This positions the mover operating unit 35 relative to the mover 34 mounted on the crosshead 50 so that the electric actuator operates reliably.

[0066] The electric actuator of Example 1 is assembled at the manufacturing site, attached to the crosshead 50, and then disassembled into a plurality of parts (three in FIG. 5) by the means described below, as shown in FIG. 5.

[0067] The bolt 105 and nut 106 are unscrewed to separate the first bracket 101 and the third bracket 110. At this time, the first bracket 101 remains fixed to the crosshead 50 by the bolt 104c. The third bracket 110 remains fixed to the second bracket 102 by the bolt 104b. The base plate 40, to which the mover operating unit 35 and the mechanism units (36, 37, 39-42, 55) are attached, remains fixed to the second bracket 102 by the bolt 104.

[0068] The bolts 105 are passed through holes in the third bracket 110 and screwed onto the nuts 106. The bolts 105 may also be passed through holes in the first bracket 101 and screwed onto the nuts 106. The bolts 105 and nuts 106 may also be transported to the installation site in a state where they are removed from the first bracket 101 and the third bracket 110.

[0069] Furthermore, by passing the bolt 105 through the hole in the third bracket 110 and screwing it into the nut 106, at the installation site, the bolt 105 only needs to be passed through the hole in the first bracket 101 out of the holes in the first bracket 101 and the third bracket 110, which makes it easier to assemble the electric actuator at the installation site.

[0070] In this embodiment, the mover 34 is detached from the operating lever 11. However, the mover 34 may remain attached to the operating lever 11 if damage to the mover 34 and the operating lever 11 can be reliably prevented during transportation from the manufacturing site to the installation site.

[0071] By the above-mentioned disassembly means, the electric operating device is disassembled into the following first to third parts as shown in FIG.

[0072] The first part is a first bracket 101 that is fixed to the crosshead 50 by a bolt 104c. The operating lever 11 is rotatably attached to an operating shaft 19 that is fixed to the crosshead 50.

[0073] The second part is made up of the second bracket 102 and the third bracket 110, which are fixed to each other by the bolt 104b. The base plate 40 is fixed to the second bracket 102 by the bolt 104a.

[0074] The third part is the mover 34 .

[0075] The first to third parts are carried to the installation site, and the electric actuator is assembled. At this time, the movable element 34 is attached to the operating lever 11, and the first bracket 101 is connected to the third bracket 110 with the bolt 105 and the nut 106, thereby connecting the first part and the second part.

[0076] As described above, the diameter of each circular hole of the first bracket 101 and the third bracket 110, through which the bolt 105 passes, is set to a size that prevents substantial misalignment between the first bracket 101 and the third bracket 110. Therefore, when the first bracket 101 of the first part and the third bracket 110 of the second part are connected and fixed, the first bracket 101 and the second bracket 102 are aligned with each other by the third bracket 110. This recreates the state when assembled at the manufacturing site, i.e., the state in which the mover operating portion 35 is positioned relative to the mover 34 attached to the crosshead 50.

[0077] This allows the electric actuator to be assembled without having to align the mover 34 and the mover operating portion 35 in the narrow space at the installation location.

[0078] FIG. 6 is a structural diagram of the elevator car and its surroundings according to the second embodiment of the present invention.

[0079] The following describes the differences from the first embodiment (FIG. 1).

[0080] An emergency stop device 200 and an electric operating device 300 for operating the emergency stop device 200 are disposed at the bottom of the car (1, 50, 51, 52). In Example 2, one emergency stop device 200 is provided on each of the left and right sides of the bottom of the car. The electric operating devices 300 are provided above the emergency stop devices 200, and one on each of the left and right sides of the bottom of the car. The electric operating devices 300 are provided on the vertical frame 51 on the car side.

[0081] FIG. 7 shows the mechanism of the electric operating device 300 in the second embodiment, and is a front view in the installed state shown in FIG.

[0082] 8 is a view taken along the arrow A in FIG.

[0083] First, the configuration and operation of the electric operating device 300 will be described with reference to FIGS.

[0084] In an emergency, a pair of wedge-shaped brake members 214 in the safety device 200 are moved from a non-braking position to a braking position above the non-braking position by the electric operator 300. In this braking position, the brake members 214 are clamped by a pair of guide members 213.

[0085] The electric actuator 300 includes a mover 302 made of a permanent magnet, and a mover operating unit 303 including an electromagnet that operates the mover 302. The mover 302 is mechanically linked to a pair of brakes 214 via an operating rod 304 and a connecting member 306.

[0086] One end of the operating rod 304 is rotatably connected to the mover 302. The other end of the operating rod 304 is rotatably connected to one of the pair of brakes 214.

[0087] The mover 302, the mover operating portion 303, and the operating rod 304 are located on one of the left and right sides of the guide rail 4. The mover 302 is located between the mover operating portion 303 and the guide rail 4. The brake 214 to which the operating rod 304 is connected is located on one of the left and right sides of the guide rail 4 together with the mover 302, the mover operating portion 303, and the operating rod 304.

[0088] The pair of brakes 214 are connected to each other via a connecting member 306. The connecting member 306 is connected to each brake 214 by a connecting pin. This allows the pair of brakes 214 to operate as a unit. The operating rod 304 is rotatably connected to one of the pair of brakes 214 via the connecting pin. The operating rod 304 extends upward from the connection portion with the brake 214 and is rotatably connected to a movable element 302 located directly above the brake 214 to which the operating rod 304 is connected.

[0089] When the safety device 200 is in an inoperative state, the permanent magnet portion of the mover 302 is attracted to the electromagnet portion of the mover operating portion 303. Therefore, the mover 302 is separated from the guide rail 4, and there is a gap between the mover 302 and the guide rail 4. Therefore, the mover 302, together with the operating rod 304, can rotate around the connection portion between the brake member 214 and the operating rod 304, and the mover 302 can move between the mover operating portion 303 and the guide rail 4.

[0090] Under normal circumstances, the brake 214 is located in a non-braking position at the bottom of the safety device 200, away from the guide member 213. The permanent magnet portion of the mover 302 is attracted to the electromagnet portion of the mover operating portion 303 by an electromagnetic force generated by the electromagnet portion. Therefore, the position of the brake 214 is maintained in the non-braking position in the safety device 200, which is fixed to the car. In other words, the brake 214 is fixed to the car via the operating rod 304.

[0091] In addition, a coil (not shown) provided in the electromagnet portion of the mover operating portion 303 is normally always energized.

[0092] As in the first embodiment, when the safety control device determines that the descending speed of the car has reached a predetermined overspeed (for example, a speed not exceeding 1.4 times the rated speed), it outputs a command signal to operate the electric operator 300. Upon receiving the command signal, the control device of the electromagnet part of the mover operating part 303 passes a current through the coil of the electromagnet part in the opposite direction to normal. As a result, the permanent magnet part of the mover 302 receives a repulsive force from the electromagnet part of the mover operating part 303 and moves from the mover operating part 303 toward the guide rail 4. Therefore, the permanent magnet part of the mover 302 is attracted to the guide rail 4 by the magnetic force of the permanent magnet part.

[0093] Therefore, the brake shoe 214 is released from its fixation to the car and is fixed to the guide rail 4 via the operating rod 304.

[0094] As the car continues to descend with the brake shoes 214 fixed to the guide rail 4, the brake shoes 214 are relatively raised from a non-braking position at the bottom of the safety device 200 to a braking position where they are sandwiched between the pair of guide members 213. At the braking position, the pair of brake shoes 214 are sandwiched between the pair of guide members 213, and therefore sandwich the guide rail 4. As a result, the frictional force generated between each brake shoe 214 and the guide rail 4 brakes the car.

[0095] Next, the state in which the electric operating device 300 is attached to the car side will be described.

[0096] 7 and 8, the electric operating device 300 is attached to the vertical frame 51 (sling) of the car via the first bracket 120, the second bracket 102b, and the third bracket 101b. The third bracket 101b and the second bracket 102b are connected by a bolt 104d. The first bracket 120 is connected to the flat side surface of the vertical frame 51 by a bolt 104f that screws into the vertical frame 51.

[0097] 7, the vertical plane portion of the first bracket 120 and the side surface portion of the vertical frame 51 are connected to each other by a bolt 104f. The bolt 104f passes through a long hole 103f in the vertical plane portion of the first bracket 120 and is screwed into the side surface portion of the vertical frame 51. The bolt 104f may also pass through a hole in the side surface portion of the vertical frame 51 and be further screwed into a nut.

[0098] The longitudinal direction of the elongated hole 103f is perpendicular to the movement direction of the mover 302 within the vertical plane portion of the first bracket 120. Therefore, the first bracket 120 is connected to the side surface portion of the vertical frame 51 so that its position can be adjusted along the direction perpendicular to the movement direction of the mover 302.

[0099] As shown in Figure 7, the vertical flat surface portion of the first bracket 120 and the vertical flat surface portion of the third bracket 101b are connected to each other by bolts 107, and are fixed to the vertical frame 51 by screwing the bolts 107 into the vertical frame 51.

[0100] The diameter of the circular holes in the first bracket 120 and the third bracket 101b through which the bolts 107 pass is set to a value such that the misalignment between the first bracket 120 and the third bracket 101b is within an allowable value, i.e., such that there is virtually no misalignment. Therefore, by tightening the bolts, the third bracket 101b is fixedly abutted against a predetermined position in the first bracket 101 where the hole through which the bolts 107 pass is provided.

[0101] 7, the horizontal plane portion of the third bracket 101b and the horizontal plane portion of the second bracket 102b are connected to each other by a bolt 104d. The bolt 104d passes through a long hole 103d in the horizontal plane portion of the second bracket 102b and is screwed into the horizontal plane portion of the third bracket 101b located above the horizontal plane portion of the second bracket 102b. The bolt 104d may also pass through a hole in the horizontal plane portion of the third bracket 101b and be further screwed into a nut.

[0102] The longitudinal direction of the elongated hole 103d is perpendicular to the movement direction of the mover 302 in each horizontal plane portion of the third bracket 101b and the second bracket 102b. The longitudinal direction of the elongated hole 103d is also perpendicular to the longitudinal direction of the elongated hole 103f in the vertical plane portion of the first bracket 120. Therefore, the third bracket 101b and the second bracket 102b are connected to each other so that their positions can be adjusted along the direction perpendicular to the movement direction of the mover 302 and the longitudinal direction of the elongated hole 103f in each horizontal plane portion of the third bracket 101b and the second bracket 102b.

[0103] An electric actuator 300 including a mover 302 and a mover operating section 303 for operating the mover 302 is placed on the horizontal plane section of the second bracket 102b and connected to this horizontal plane section by a bolt 104e.

[0104] 7, the bolt 104e passes through a long hole 103e in the horizontal plane portion of the second bracket 102b and is screwed into the bottom of the electric actuator 300. The bolt 104e may also pass through the bottom of the electric actuator 300 and be further screwed into a nut.

[0105] The longitudinal direction of the elongated hole 103e is parallel to the movement direction of the mover 302. Therefore, the electric actuator 300 and the second bracket 102b are connected so that their positions can be adjusted relative to each other along the movement direction of the mover 302.

[0106] The mounting position of the electric operator 300 relative to the vertical frame 51 is set by the screw-in positions of the bolts 104d, 104e, and 104f, and can be adjusted in three mutually perpendicular directions by the elongated holes 103d, 103e, and 103f. That is, the movable element operating unit 303 connected to the vertical frame 51 is not mechanically linked to the movable element operating unit 303, and the relative position of the movable element 302, which is mechanically linked to the pair of brakes 214 in the safety device 200, can be adjusted in three mutually perpendicular directions. This allows the movable element operating unit 303 of the electric operator 300 to be positioned so that the movable element 302 is accurately held in the standby position and accurately operated. This improves the operational reliability of the electric operator 300, and therefore the operational reliability of the safety device 200.

[0107] In Example 2, the third bracket 101b allows the movable member operating part 303 of the electric actuator to be accurately positioned relative to the movable member 302 when installing the elevator, even in a narrow space, as described below.

[0108] The electric actuator of Example 2 is assembled at the manufacturing site before being transported to the installation site, and then attached to the vertical frame 51 using the first to third brackets (101b, 102b, 120) as shown in Figures 7 and 8.

[0109] At this time, the mounting position of the mover operating part 303 mounted on the second bracket 102b relative to the vertical frame 51 is adjusted in three mutually perpendicular directions by the elongated holes 103d, 103e, and 103f through which the bolts 104d, 104e, and 104f pass, respectively. This positions the mover operating part 303 relative to the mover 302 so that the electric actuator operates reliably.

[0110] The electric operating device of the second embodiment is assembled at the manufacturing site, attached to the vertical frame 51, and then disassembled into a plurality of parts (two in the second embodiment) by the means described below.

[0111] The bolt 107 is unscrewed from the vertical frame 51 to release the connection between the first bracket 120 and the third bracket 101b. In other words, the first bracket 120 and the third bracket 101b are separated. At this time, the first bracket 120 remains fixed to the vertical frame 51 by the bolt 104f. The third bracket 101b remains fixed to the second bracket 102b by the bolt 104d. The mover operating part 303 remains fixed to the second bracket 102b by the bolt 104e.

[0112] By the above-mentioned disassembly means, the electric operating device is disassembled into the following first and second parts.

[0113] The first part is a first bracket 120 that is fixed to the vertical frame 51 by a bolt 104f.

[0114] The second part is the third bracket 101b and the second bracket 102b, which are fixed to each other by a bolt 104d. The mover operating part 303 is fixed to the second bracket 102b by a bolt 104e.

[0115] The third part is the mover 34 .

[0116] The first and second parts are carried to the installation site, and the electric actuator is assembled. At this time, the first bracket 120 and the third bracket 101b are connected by the bolts 107.

[0117] As described above, the diameter of each circular hole in the first bracket 120 and the third bracket 101b through which the bolt 107 passes is set to a size that will prevent substantial misalignment between the first bracket 120 and the third bracket 101b. Therefore, when the first bracket 120 and the third bracket 101b are connected and fixed, the state in which they are assembled at the manufacturing site, that is, the state in which the mover operating portion 303 is positioned relative to the mover 302, is reproduced.

[0118] This makes it possible to assemble the electric actuator without performing the work of aligning the mover 302 and the mover operating portion 303 in the narrow space at the installation location.

[0119] An elevator apparatus according to a third embodiment of the present invention will be described with reference to FIGS.

[0120] In the third embodiment, the configuration of the car and the safety device is the same as that of the first embodiment (FIGS. 1 and 2).

[0121] FIG. 9 shows a mechanism of the electric operating device in the third embodiment, and is a front view in the installed state of FIG.

[0122] FIG. 10 shows the mechanism of the electric operating device in the third embodiment, and is a rear view in the installed state of FIG.

[0123] FIG. 11 is a view taken along the line AA in FIGS. 9 and 10. FIG.

[0124] 9 to 11, the safety device is in a non-braking state, and the electric operating device is in a standby state, i.e., the elevator system is in a normal operating state.

[0125] The configuration and operation of the electric actuator in the third embodiment are the same as those in the first embodiment.

[0126] Next, the state in which the electric operating device 10 is attached to the car side will be described.

[0127] 9 to 11 , the electric operator is attached to the crosshead 50, which constitutes the upper frame of the car, via a first bracket 101, a second bracket 102, and a third bracket 130. The first bracket 101 and the second bracket 102 are connected by a bolt 104b. The second bracket 102 and the third bracket 130 are connected by a bolt 108. The first bracket 101 is connected to the lower flat portion of the crosshead 50 by a bolt 104c that screws into the crosshead 50.

[0128] 10 , the third bracket 130 is an L-shaped member that abuts against a corner of the flat portion of the first bracket 101 that is perpendicular to the crosshead 50, thereby aligning the first bracket 101 and the second bracket 102 with each other. In other words, the first bracket 101 and the second bracket 102 are aligned with each other by the shoulder rest provided by the third bracket 130.

[0129] 9 to 11, the base plate 40, on which the mover operating unit 35 that operates the mover 34 is provided, is placed on a horizontal plane portion of the second bracket 102 and is connected to this plane portion by a bolt 104a. The bolt 104a passes through an elongated hole 103a in the base plate 40 and is screwed into the second bracket 102. The bolt 104a may also pass through a hole in the second bracket 102 and be further screwed into a nut.

[0130] The longitudinal direction of the elongated hole 103a is parallel to the axial direction of the feed screw 36 and the movement direction of the mover 34. Therefore, the base plate 40 and the second bracket 102 are connected so that their positions can be adjusted relative to each other along the movement direction of the mover 34.

[0131] 11 , the horizontal plane portion of the first bracket 101 is connected to the lower plane portion of the crosshead 50 by a bolt 104c. The bolt 104c passes through an elongated hole 103c in the horizontal plane portion of the first bracket 101 and is screwed into the lower plane portion of the crosshead 50.

[0132] The longitudinal direction of the elongated hole 103c is perpendicular to the axial direction of the feed screw 36 and the movement direction of the mover 34 within the horizontal plane portion of the first bracket 101. Furthermore, the longitudinal direction of the elongated hole 103c is perpendicular to the longitudinal direction of the elongated hole 103a in the base plate portion 40 within the horizontal plane portion of the first bracket 101. Therefore, the first bracket 101 is connected to the crosshead 50 so that its position can be adjusted horizontally and in a direction perpendicular to the movement direction of the mover 34.

[0133] 11 , the vertical flat portion of the first bracket 101 and the vertical flat portion of the second bracket 102 are connected to each other by a bolt 104b. The bolt 104b passes through a long hole 103b in the vertical flat portion of the second bracket 102 and is screwed into the vertical flat portion of the first bracket 101. Note that the bolt 104b may also pass through a hole in the first bracket 101 and be further screwed into a nut.

[0134] The longitudinal direction of the elongated hole 103b is perpendicular to the axial direction of the feed screw 36 and the moving direction of the mover 34 in each of the vertical plane portions of the first bracket 101 and the second bracket 102. Furthermore, the longitudinal direction of the elongated hole 103b is perpendicular to the longitudinal directions of the elongated hole 103a in the base plate 40 and the elongated hole 103c in the horizontal plane portion of the first bracket 101 in each of the vertical plane portions of the first bracket 101 and the second bracket 102. Therefore, the first bracket 101 and the second bracket 102 are connected to each other so that their positions can be adjusted along the direction perpendicular to the base plate 40.

[0135] The mounting positions of the mover actuation unit 35 and the mechanism units (36, 37, 39-42, 55) of the electric actuator relative to the crosshead 50 are set by the screw-in positions of the bolts 104a, 104b, and 104c, and can be adjusted in three mutually perpendicular directions by the elongated holes 103a, 103b, and 103c. That is, the relative positions of the mover 34 and the mover actuation unit 35, which are independently mechanically connected to the crosshead 50, can be adjusted in three mutually perpendicular directions. This allows the mover actuation unit 35 of the electric actuator to be positioned so that the mover 34 is accurately held in the standby position and returns to the standby state after actuation. This improves the operational reliability of the electric actuator, and therefore the operational reliability of the electric emergency stop device.

[0136] The position adjustment direction set by the elongated holes 103a, 103b, and 103c can be changed by changing the longitudinal direction of each elongated hole.

[0137] In Example 3, the third bracket 130 allows the movable member operating part 35 of the electric actuator to be accurately positioned relative to the movable member 34 when installing the elevator, even in a narrow space, as described below.

[0138] FIG. 12 is an exploded view showing the state of the electric operating device when the elevator system is installed.

[0139] The electric actuator of Example 3 is assembled at the manufacturing site before being transported to the installation site, and then attached to the crosshead 50 using the first to third brackets (101, 102, 130) as shown in Figures 9 to 11.

[0140] At this time, the mounting positions of the mover operating unit 35 and the mechanism units (36, 37, 39-42, 55) mounted on the base plate unit 40 relative to the crosshead 50 are adjusted in three mutually perpendicular directions by the elongated holes 103a, 103b, and 103c through which the bolts 104a, 104b, and 104c pass, respectively. This positions the mover operating unit 35 relative to the mover 34 mounted on the crosshead 50 so that the electric actuator operates reliably. Furthermore, the third bracket 130 is fixedly connected to the second bracket 102 by the bolts 108 while abutting against the corners of the first bracket 101.

[0141] The electric actuator of Example 3 is assembled at the manufacturing site, attached to the crosshead 50, and then disassembled into a plurality of parts (three in FIG. 5) as shown in FIG. 12 by the means described below.

[0142] The bolt 104b is released from the first bracket 101 to separate the first bracket 101 and the second bracket 102. At this time, the first bracket 101 remains fixed to the crosshead 50 by the bolt 104c. The third bracket 130 remains fixed to the second bracket 102 by the bolt 108. The base plate 40, to which the mover operating unit 35 and the mechanism units (36, 37, 39-42, 55) are attached, remains fixed to the second bracket 102 by the bolt 104a.

[0143] The bolt 104b is threadedly engaged with the first bracket 101. The bolt 104b may be passed through a hole in the first bracket 101 and threadedly engaged with a nut. Alternatively, the bolt 104b may be transported to the installation site in a state where it is detached from the first bracket 101 and the second bracket 102.

[0144] In this embodiment, the mover 34 is detached from the operating lever 11. However, the mover 34 may remain attached to the operating lever 11 if damage to the mover 34 and the operating lever 11 can be reliably prevented during transportation from the manufacturing site to the installation site.

[0145] By the above-mentioned disassembly means, the electric operating device is disassembled into the following first to third parts as shown in FIG.

[0146] The first part is a first bracket 101 that is fixed to the crosshead 50 by a bolt 104c. The operating lever 11 is rotatably attached to an operating shaft 19 that is fixed to the crosshead 50.

[0147] The second part is made up of a second bracket 102 and a third bracket 130 which are fixed to each other by a bolt 108. The base plate 40 is fixed to the second bracket 102 by a bolt 104a.

[0148] The third part is the mover 34 .

[0149] The first to third sections are then transported to the installation site, where the electric actuator is assembled. At this time, the movable member 34 is attached to the operating lever 11, and the first bracket 101 in the first section is connected to the second bracket 102 in the second section by the bolt 104b while the corner of the first bracket 101 is brought into contact with the third bracket 130.

[0150] The first bracket 101 and the second bracket 102 are aligned with each other by the shoulder rest of the third bracket 130. As a result, when the first bracket 101 in the first section and the second bracket 102 in the second section are connected and fixed, the state when assembled at the manufacturing site, that is, the state in which the mover operating part 35 is positioned relative to the mover 34 attached to the crosshead 50, is reproduced.

[0151] This allows the electric actuator to be assembled without having to align the mover 34 and the mover operating portion 35 in the narrow space at the installation location.

[0152] The present invention is not limited to the above-described first to third embodiments, and includes various modifications. For example, the above-described first to third embodiments have been described in detail to clearly explain the present invention, and the present invention is not necessarily limited to those including all of the described configurations. Furthermore, it is possible to add, delete, or replace part of the configuration of each embodiment with other configurations.

[0153] For example, the drive mechanisms (11-20) and the electric actuator 10 of the safety devices in Examples 1 and 3 may be provided in the lower or side portions of the car in addition to the upper portion. In this case, the drive mechanisms and the electric actuators are provided in structural members of the car as appropriate. Note that in Examples 1 and 3, the drive mechanisms (11-20) and the electric actuator 10 are installed below the crosshead 50. This allows the drive mechanisms (11-20) and the electric actuator 10 to be provided in the car without increasing the overhead dimensions.

[0154] The elevator system may have a machine room in which a hoist and a control panel are installed, or may be a so-called machine room-less elevator.

[0155] REFERENCE SIGNS LIST 1...cab, 4...guide rail, 9...guide device, 10...electric operating device, 11...operating lever, 12...drive shaft, 13...drive spring, 14...fixed portion, 15...pressure member, 16...actuating piece, 17...connecting piece, 18...actuating piece, 19...actuating shaft, 20...actuating shaft, 21...lifting rod, 34...movable member, 35...movable member actuating portion, 36...feed screw, 37...motor, 39...feed nut, 40...base portion, 41, 42...feed screw support member, 50...crosshead, 51...vertical frame, 52...bottom frame, 55...motor fixing bracket, 101...first bracket, 101b...third bracket, 102, 102b...second bracket, 103a, 103b , 103c, 103d, 103e, 103f...long holes, 104a, 104b, 104c, 104d, 104e, 104f...bolts, 105...bolts, 106...nuts, 107, 108...bolts, 109...long holes, 110...third bracket, 120...first bracket, 130...third bracket, 200...emergency stop device, 212...operating lever, 214...brake, 216...rotating shaft, 217...link, 218...rotating shaft, 219...link, 200...casing, 220...lifting rod, 223...lifting pin, 300...electric actuator, 302...movable element, 303...movable element operating portion, 304...operating rod, 306...connecting member

Claims

1. A method for installing an elevator system comprising a car, an emergency stop device provided in the car, and an electric operator provided in the car for operating the emergency stop device, wherein the electric operator comprises a mover mechanically linked to the emergency stop device and a mover operating unit for operating the mover, comprising the steps of: attaching the electric operator to a structural member of the car via a plurality of brackets before transporting the electric operator to an installation location; the plurality of brackets including: a first bracket connected to the structural member so as to be positionably adjustable along a first direction; a second bracket connected to the mover operating unit so as to be positionably adjustable along a second direction; and a third bracket connected to the second bracket and abutting against a predetermined position of the first bracket to align the first bracket and the second bracket with respect to each other; and after the electric operator is attached to the structural member, and before transporting the electric operator to the installation location, the electric operator is attached to the structural member while maintaining the connection between the second bracket and the third bracket, a first part consisting of the first bracket connected to the structural member; and a second part consisting of the movable member operating part, the second bracket connected to the movable member operating part, and the third bracket; and connecting the first part and the second part at the installation site so that the third bracket abuts at the specified position of the first bracket.

2. A method for installing an elevator apparatus as described in claim 1, characterized in that the third bracket abuts against the specified position of the first bracket by tightening bolts.

3. A method for installing an elevator apparatus according to claim 2, characterized in that the third bracket is connected to the second bracket so as to be adjustable in position along a third direction.

4. A method for installing an elevator system as claimed in claim 1, characterized in that the first bracket and the second bracket are aligned with each other by being supported by the third bracket.

5. A method for installing an elevator apparatus according to claim 1, characterized in that the second bracket is connected to the first bracket so as to be adjustable in position along a third direction.

6. A method for installing an elevator apparatus according to claim 3 or 5, characterized in that the first direction, the second direction and the third direction are perpendicular to each other.

7. A method for installing an elevator apparatus according to claim 6, characterized in that any one of the first direction, the second direction and the third direction is a moving direction of the movable element.

8. A method for installing an elevator apparatus according to claim 1, characterized in that the structural member is an upper frame or a vertical frame of the elevator car.

9. An elevator system comprising: a car; an emergency stop device provided in the car; and an electric operator provided in the car for operating the emergency stop device, wherein the electric operator comprises a movable member mechanically linked to the emergency stop device, and a movable member operating unit for operating the movable member, wherein the electric operator is provided on a structural member of the car via a plurality of brackets, and the plurality of brackets include: a first bracket connected to the structural member so as to be positionably adjustable along a first direction; a second bracket connected to the movable member operating unit so as to be positionably adjustable along a second direction; and a third bracket connected to the second bracket and abutting a predetermined position of the first bracket to align the first bracket and the second bracket with respect to each other.

10. An elevator apparatus according to claim 9, wherein the third bracket abuts against the predetermined position of the first bracket by tightening a bolt.

11. An elevator system according to claim 9, wherein the first bracket and the second bracket are aligned with each other by a shoulder rest by the third bracket.