Position holding aid for a parking position component and method for replacing a parking position component

Abstract

Provided are a position holding aid for a landing position component and a method for replacing the landing position component, which enable easy replacement of the landing position component. The position holding aid for the landing position component of the present disclosure is provided with: a main body that is fixed to an arm component on which a landing position component is mounted, the landing position component being a component detected by a landing device provided to a car of an elevator when the car reaches a landing position; and an indicator portion that is disposed to the main body, the indicator portion being present at the same position as a reference line of the landing position component in the vertical direction when the main body is fixed to the arm component.

Description

Technical Field

[0001] This disclosure relates to a position holding accessory for a docking position component and a method for replacing the docking position component. Background Technology

[0002] Patent Document 1 discloses a method for replacing a parking position component. In this replacement method, the new parking position component can be detachably equipped with components used in the old parking position component. Therefore, the new parking position component can be detected by an old-style parking device that detects the old parking position component after being replaced with the old parking position component.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 11-278767 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] However, in the method for replacing the parking position component disclosed in Patent Document 1, the old parking position component is removed from its installation position before the new parking position component is installed. Therefore, the vertical position of the old parking position component is unknown. As a result, it is not easy to replace the parking position component.

[0008] This disclosure was made to solve the aforementioned problems. The purpose of this disclosure is to provide a positioning accessory for the parking position component that allows for easy replacement of the parking position component, and a method for replacing the parking position component.

[0009] Methods for solving problems

[0010] The position holding device for the stopping position component disclosed herein includes: a main body that is fixed relative to an arm component on which the stopping position component is mounted, in a manner that allows it to be independently attached and detached from the stopping position component, the stopping position component being a component detected by a stopping device installed in the car when the elevator car reaches the stopping position; and an indicator that is disposed on the main body, wherein when the main body is fixed to the arm component, the indicator and the reference line of the stopping position component are located at the same position in the vertical direction.

[0011] The position holding device for the stopping position component disclosed herein comprises: a main body fixed to an arm component on which the stopping position component is installed, the stopping position component being a component detected by a stopping device installed in the car when the elevator car reaches the stopping position; and an indicator portion fixed to the main body in such a manner that it exists in the same position in the vertical direction as the reference line of the stopping position component when the main body is fixed to the arm component.

[0012] The method for replacing the stop position component disclosed herein includes: a fixing step, in which the reference line of the old stop position component detected by the stop device installed in the car when the elevator car reaches the stop position and the indicator of the position holding accessory are in the same position in the vertical direction, fixing the position holding accessory to the arm component on which the old stop position component is installed; a disassembly step performed after the fixing step, in which the old stop position component is removed from the arm component; and an installation step performed after the disassembly step, in which the reference line of the new stop position component detected by the stop device and the indicator of the position holding accessory are in the same position in the vertical direction, installing the new stop position component to the arm component.

[0013] Invention Effects

[0014] According to this disclosure, the position holding aid for the parking position component includes an indicator portion disposed on the main body. When the main body is fixed to the arm component, the indicator portion and the reference line of the parking position component are located at the same position in the vertical direction. Therefore, after removing the old-style parking position component, the vertical position of the reference line of the old-style parking position component can be determined. As a result, the parking position component can be easily replaced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an elevator system using the position holding aid of the stopping position component in Implementation Method 1.

[0016] Figure 2 This is a top view of the elevator system's arm component, stop position component, and stop device, which utilizes the position holding aid of the stop position component in Embodiment 1.

[0017] Figure 3 This is a side view of the elevator system's arm component, stop position component, and stop device, which utilizes the position holding aid of the stop position component in Embodiment 1.

[0018] Figure 4 This is a schematic diagram illustrating the fixing process of the method for replacing the docking position component of the docking position component of the position holding accessory applied in Embodiment 1.

[0019] Figure 5 This is a schematic diagram illustrating the disassembly process of a method for replacing the docking position component of a docking position holding accessory that applies the docking position component in Embodiment 1.

[0020] Figure 6 This is a schematic diagram illustrating the installation process of a method for replacing the docking position component of a docking position holding accessory that applies the docking position component in Embodiment 1.

[0021] Figure 7This is a perspective view of the position holding aid for the docking position component in Embodiment 1.

[0022] Figure 8 This is a side view of the arm component of the position holding aid that is fixed with the docking position component in Embodiment 1.

[0023] Figure 9 This is a perspective view showing a modified example of the position-holding aid in Embodiment 1.

[0024] Figure 10 This is a schematic diagram illustrating the fixing process of the method for replacing the docking position component of the docking position component of the position holding accessory applied in Embodiment 2.

[0025] Figure 11 This is a schematic diagram illustrating the installation process of a method for replacing the docking position component of a docking position holding accessory that applies the docking position component in Embodiment 2. Detailed Implementation

[0026] The accompanying drawings illustrate the manner in which this disclosure is carried out. Furthermore, in the various figures, identical or equivalent parts are labeled with the same reference numerals. Repetitive descriptions of these parts have been appropriately simplified or omitted.

[0027] Implementation method 1.

[0028] Figure 1 This is a schematic diagram of an elevator system using the position holding aid of the stopping position component in Implementation Method 1.

[0029] exist Figure 1 In the elevator system, shaft 1 runs through all floors of a building (not shown). Machine room 2 is located directly above shaft 1. Multiple landings 3 are located on each floor of the building. Multiple landings 3 are located opposite shaft 1.

[0030] The traction machine 4 is located inside the machine room 2. The main rope 5 is wound around the traction machine 4.

[0031] The car 6 is located inside the hoistway 1. The car 6 is suspended on one side of the main rope 5. The counterweight 7 is located inside the hoistway 1. The counterweight 7 is suspended on the other side of the main rope 5.

[0032] Although not shown, the guide rail 8 is constructed by connecting multiple rails using multiple connecting components. The guide rail 8 is fixed inside the hoistway 1 by multiple guide rail brackets 8a. The length direction of the guide rail 8 faces the vertical direction. The guide rail 8 is adjacent to the car 6.

[0033] Multiple arm components 9 are mounted on the guide rail 8 via mounting components 9a. Each arm component 9 is mounted one-to-one on a specific landing station 3. Depending on the configuration of the connecting components and guide rail brackets 8a on the guide rail 8, the arm components 9 are installed at different vertical distances relative to their respective landing stations 3. For example, each arm component 9 extends horizontally from the guide rail 8 in a direction opposite to that of each landing station 3.

[0034] Multiple docking position components 10 are respectively disposed on multiple arm components 9. Since the vertical distance between the arm component 9 and the corresponding floor 3 is different in each of the multiple arm components 9, the multiple docking position components 10 are disposed at different positions relative to each of the multiple arm components 9 corresponding to the multiple floor 3.

[0035] A stopping device 11 is provided on the upper part of the car 6. The stopping device 11 is disposed at the end of the guide rail 8 in the car 6. The stopping device 11 is disposed relative to the guide rail 8 in the direction in which the plurality of arm members 9 extend from the guide rail 8.

[0036] The control device 12 is located in the machine room 2. The control device 12 is electrically connected to the traction machine 4 and the docking device 11 via wired or wireless means.

[0037] Control device 12 sends a drive command to traction machine 4. Traction machine 4 rotates based on the command from control device 12. Main rope 5 moves in response to the rotation of traction machine 4. Car 6 and counterweight 7 move in opposite directions in response to the movement of main rope 5. Car 6 is guided by guide rail 8 during movement. Car 6 stops at the landing 3 at the target floor.

[0038] When the car 6 approaches the target floor 3, the stopping device 11 approaches the stopping position component 10 corresponding to that floor 3. In this case, the stopping device 11 detects the relative position of the car 6 with respect to the stopping position component 10. The stopping device 11 sends the information about the relative position of the car 6 with respect to the stopping position component 10 to the control device 12. The control device 12 uses the information about the relative position of the car 6 with respect to the stopping position component 10 to control the traction machine 4 so that the position of the car 6 becomes the stopping position of the floor 3. As a result, the car 6 arrives at the stopping position of the floor 3.

[0039] Next, use Figure 2 and Figure 3 The method for detecting the relative position of the car 6 with respect to the stopping position component 10 by the stopping device 11 will be described.

[0040] Figure 2 This is a top view of the elevator system's arm component, stop position component, and stop device, which utilizes the position holding aid of the stop position component in Embodiment 1. Figure 3This is a side view of the elevator system's arm component, stop position component, and stop device, which utilizes the position holding aid of the stop position component in Embodiment 1.

[0041] Figure 2 The arm component 9, the stopping position component 10, and the stopping device 11 indicate when the car 6 approaches the stopping position of the floor 3.

[0042] The docking position component 10 is a sheet metal. The docking position component 10 includes a mounting plate 13, a reference plate 14, and a centerline 15.

[0043] Mounting plate 13 is mounted on the inner side of arm component 9 facing the shaft 1.

[0044] The reference plate 14 extends perpendicularly from the end of the mounting plate 13 in the direction opposite to that of the arm component 9.

[0045] Centerline 15 is set horizontally on the surface of reference plate 14. Centerline 15 is set at the center position in the length direction of reference plate 14.

[0046] The docking device 11 has multiple detectors 16. The multiple detectors 16 are arranged vertically. Figure 2 One of a plurality of detectors 16 is shown. Each detector 16 includes a base 16a, a detection section 16b, and a detection section 16c. The base 16a is provided such that it protrudes from the car 6 towards the guide rail 8 on the horizontal projection plane. The detection section 16b extends vertically from one end of the base 16a in the horizontal direction toward the side opposite to the car 6. The detection section 16c extends vertically from the other end of the base 16a in the horizontal direction toward the side opposite to the car 6.

[0047] The detector 16 generates a magnetic field between the detection section 16b and the detection section 16c.

[0048] When the car 6 approaches the stopping position of the landing 3, the detector 16 of the stopping device 11 is positioned opposite the stopping position component 10 corresponding to the landing 3. The end of the reference plate 14 on the stopping device 11 side is located between the detection section 16b and the detection section 16c. The reference plate 14 causes a change in the magnetic field between the detection section 16b and the detection section 16c. The stopping device 11 detects the relative position of the reference plate 14 with respect to the stopping device 11 by detecting this change in the magnetic field. Based on the relative position of the reference plate 14 with respect to the stopping device 11, the stopping device 11 detects the relative position of the car 6 with respect to the stopping position component 10.

[0049] like Figure 3As shown, when the car 6 stops at the docking position of the landing 3, the upper end of the reference plate 14 is located between detection sections 16b and 16c in the detector 16 disposed on the upper part of the docking device 11. Similarly, the lower end of the reference plate 14 is located between detection sections 16b and 16c in the detector 16 disposed on the lower part of the docking device 11. Furthermore, the centerline 15 of the reference plate 14 is located between detection sections 16b and 16c in the detector 16 disposed on the middle part of the docking device 11.

[0050] Next, use Figures 4 to 6 The method for replacing the docking position component 10 will be described. For example, the method for replacing the docking position component 10 includes a fixing process, a disassembly process, and an installation process.

[0051] Figure 4 This is a schematic diagram illustrating the fixing process of the method for replacing the docking position component of the docking position component of the position holding accessory applied in Embodiment 1. Figure 5 This is a schematic diagram illustrating the disassembly process of a method for replacing the docking position component of a docking position holding accessory that applies the docking position component in Embodiment 1. Figure 6 This is a schematic diagram illustrating the installation process of a method for replacing the docking position component of a docking position holding accessory that applies the docking position component in Embodiment 1.

[0052] exist Figure 4 In the above, the old parking position component 10a is the parking position component 10 before replacement. The old parking position component 10a has a centerline 15a.

[0053] The position holding aid 20 has a main body component 21 as the main body and an indicator component 22 as the indicator.

[0054] For example, the main body component 21 is a steel plate. The main body component 21 has a contact surface 21a. The contact surface 21a is the side surface of the main body component 21.

[0055] The indicating member 22 is a magnetic plate. For example, the shape of the indicating member 22 is an arrow. The indicating member 22 can be magnetically fixed to the surface of the main body member 21. The indicating member 22 has an indicating point 22a. For example, the indicating point 22a is the tip of an arrow. However, the indicating member 22 can be of any shape as long as it has the indicating point 22a.

[0056] In the fixing process, the main body component 21 is positioned so that the contact surface 21a contacts the old docking position component 10a without gap. The main body component 21 is then fixed at this position to the surface of the arm component 9 on which the old docking position component 10a is mounted.

[0057] Next, on the surface opposite to the surface where the arm component 9 is mounted, align the indicator point 22a of the indicator component 22 with the center line 15a, which serves as the reference line for the old docking position component 10a, at the same height in the vertical direction. Secure the indicator component 22 to the main body component 21 by attaching it to the main body component 21 at this location.

[0058] Next, the disassembly process will begin. For example... Figure 5 As shown, during the disassembly process, the old docking position component 10a is removed from the arm component 9.

[0059] Then, the installation process begins. Figure 6 In this context, the new parking position component 10b is the replaced parking position component 10. The new parking position component 10b has a centerline 15b.

[0060] During the installation process, the new parking position component 10b is positioned on the surface of the main body component 21 of the arm component 9, where the position holding aid 20 is fixed, so that it contacts the contact surface 21a of the main body component 21 without gaps. At this time, the center line 15b, which serves as a reference line, is aligned with the indicator point 22a of the indicator component 22 at the same height in the vertical direction in the new parking position component 10b. The new parking position component 10b is then installed in this position.

[0061] Then, remove the position holding assist 20 from the arm component 9.

[0062] Next, use Figure 7 The main parts of the position-holding assistive device 20 will be described.

[0063] Figure 7 This is a perspective view of the position holding aid for the docking position component in Embodiment 1.

[0064] like Figure 7 As shown, the position holding accessory 20 has a fixing part 23. The fixing part 23 has a horizontal plate 24, a vertical plate 25, a holding plate 26, and an adjusting member 27.

[0065] The horizontal plate 24 extends vertically from the side of the main body 21 opposite to the side of the fixed indicator 22.

[0066] The longitudinal plate 25 extends downward from the end of the transverse plate 24 opposite to the end connected to the main body member 21 in a manner parallel to the main body member 21.

[0067] The holding plate 26 is positioned between the main body component 21 and the longitudinal plate 25.

[0068] For example, the adjusting member 27 is an externally threaded member. The adjusting member 27 extends perpendicularly through the longitudinal plate 25 toward the main body component 21. In the adjusting member 27, the end toward the main body component 21 is mounted to the gripping plate 26. The adjusting member 27 is configured to rotate freely relative to the gripping plate 26 in the direction of thread rotation. The adjusting member 27 supports the gripping plate 26.

[0069] Next, use Figure 8 This describes the method of fixing the main body component 21 to the arm component 9.

[0070] Figure 8 This is a side view of the arm component of the position holding aid that is fixed with the docking position component in Embodiment 1.

[0071] like Figure 8 As shown, the arm component 9 is positioned between the main body component 21 and the gripping plate 26. The adjusting member 27 is rotated in the screwing direction. With the adjusting member 27 rotated in the screwing direction, the adjusting member 27 and the gripping plate 26 move together relative to the longitudinal plate 25 towards the main body component 21. In this case, the main body component 21 and the gripping plate 26 clamp the arm component 9 in the horizontal direction. As a result, the main body component 21 is fixed to the arm component 9.

[0072] According to Embodiment 1 described above, the position holding accessory 20 includes a main body and an indicator. When the main body is fixed to the arm member 9, the indicator is located at the same position in the vertical direction as the reference line of the old parking position member 10a. Therefore, the position holding accessory 20 can maintain the position of the reference line of the old parking position member 10a in the vertical direction. After the old parking position member 10a is removed, the position of the reference line of the old parking position member 10a in the vertical direction can be determined. As a result, the parking position member can be easily replaced.

[0073] Furthermore, the indicator section is the indicator member 22. With the main body fixed to the arm member 9, the indicator member 22 is fixed to the main body in such a way that it exists in the same position as the reference line of the old docking position member 10a. Therefore, it is easy to make the position of the indicator member 22 match the position of the reference line of the old docking position member 10a.

[0074] Furthermore, when the position holding accessory 20 is installed on the arm member 9, it makes seamless contact with the old docking position member 10a. In this case, in the projection plane onto the surface of the arm member 9 where the old docking position member 10a is installed, the angle between the position holding accessory 20 and the arm member 9 is equal to the angle between the old docking position member 10a and the arm member 9. Therefore, the position holding accessory 20 is able to maintain the angle between the old docking position member 10a and the arm member 9 in the projection plane.

[0075] Furthermore, in the projection plane projected in the vertical direction, the angle between the docking position member 10 and the arm member 9 is always the same. In the projection plane projected in the direction in which the arm member 9 extends from the guide rail 8, the angle between the docking position member 10 and the arm member 9 is always the same. Therefore, the position holding aid 20 only needs to contact the old docking position member 10a at two or more different positions in the vertical direction when installed on the arm member 9. In this case, the position holding aid 20 can maintain the angle between the old docking position member 10a and the arm member 9 in the projection plane projected onto the surface of the arm member 9 where the old docking position member 10a is mounted.

[0076] Furthermore, the method for replacing the docking position component includes a fixing process, a disassembly process, and an installation process. Therefore, the new docking position component 10b can be installed on the arm component 9 such that the vertical position of the reference line of the new docking position component 10b is equal to the vertical position of the reference line of the old docking position component 10a during the fixing process. As a result, the docking position component can be easily replaced.

[0077] Furthermore, in the fixing process, the position holding accessory 20 is installed on the arm member 9 in a manner that ensures seamless contact with the old docking position member 10a. In the installation process, the new docking position member 10b is installed in a manner that ensures seamless contact with the position holding accessory 20. Therefore, in the projection plane onto the arm member 9 of the surface on which the old docking position member 10a is installed, the new docking position member 10b can be installed on the arm member 9 such that the angle formed by the new docking position member 10b and the arm member 9 is equal to the angle formed by the old docking position member 10a and the arm member 9. Additionally, the position holding accessory 20 only needs to contact the old docking position member 10a at two or more different locations in the vertical direction. The position holding accessory 20 only needs to contact the new docking position member 10b at two or more different locations in the vertical direction.

[0078] Alternatively, the method of replacing the position holding accessory 20 and the stopping position component can also be applied to elevators without a machine room 2 and where the traction machine 4 and control device 12 are located in the lower or upper part of the hoistway 1.

[0079] In addition, for example, the docking device 11 may also use a light sensor to detect the relative position of the reference plate 14 with respect to the docking device 11.

[0080] Furthermore, in the method of replacing the docking position component, the edge constituting the lower surface of the docking position component 10 or the edge constituting the upper surface of the docking position component 10 may be used as the reference line of the docking position component 10.

[0081] Next, use Figure 9 This section describes a variation of the position-holding aid 20 in Embodiment 1.

[0082] Figure 9 This is a perspective view showing a modified example of the position-holding aid in Embodiment 1.

[0083] like Figure 9 As shown, the main body component 21 has an elongated hole 30. The elongated hole 30 is provided along the length direction of the main body component 21.

[0084] The indicating member 22 includes a bolt 31. The bolt 31 has a threaded portion. The threaded portion of the bolt 31 passes through the indicating member 22. The threaded portion of the bolt 31 is inserted into the inside of the elongated hole 30. For example, with the threaded portion of the bolt 31 inside the elongated hole 30, it is fixed to the elongated hole 30 by a nut (not shown).

[0085] The indicator component 22 is fixed to the main body component 21 through the elongated hole 30 and the bolt 31.

[0086] As shown in the modified example, the indicator component 22 can also be fixed to the main component 21 by means of bolts 31 and nuts or other tools.

[0087] Implementation method 2.

[0088] Figure 10 This is a schematic diagram illustrating the fixing process of the method for replacing the docking position component of the docking position component of the position holding accessory applied in Embodiment 2. Figure 11 This is a schematic diagram illustrating the installation process of replacing the docking position component of the positioning accessory that uses the docking position component in Embodiment 2. Furthermore, parts that are the same as or equivalent to those in Embodiment 1 are labeled with the same reference numerals. Descriptions of these parts are omitted.

[0089] like Figure 10 As shown, the position holding aid 40 includes a main body component 41 as the main body and an indicator part 42.

[0090] For example, the main body component 41 has the same structure as the main body component 21 in Embodiment 1.

[0091] For example, the indicator portion 42 is the end of the main body component 41. The indicator portion 42 has an indicator point 42a. For example, the indicator point 42a is a corner of the lower surface of the indicator portion 42. However, for example, the indicator point 42a may also be a corner of the upper surface of the indicator portion 42.

[0092] In Implementation 2, the method for replacing the docking position component includes a fixing process, a disassembly process, and an installation process.

[0093] During the fixing process, the main body component 41 is configured to make seamless contact with the old docking position component 10a. At this time, the indicator point 42a of the main body component 41 is aligned with the center line 15a of the old docking position component 10a at the same height in the vertical direction. The main body component 41 is then fixed to the arm component 9 at this position by bolts.

[0094] Afterwards, although not shown in the figure, the disassembly process is carried out in the same manner as in Embodiment 1.

[0095] Then, the installation process begins. For example... Figure 11 As shown, during the installation process, the new docking position component 10b is positioned so that it contacts the main body component 41 without gaps. At this time, the centerline 15b of the new docking position component 10b is aligned with the indicator point 42a at the same height in the vertical direction. The new docking position component 10b is then installed on the arm component 9 at this position.

[0096] Then, remove the position holding assist 40 from the arm component 9.

[0097] According to Embodiment 2 described above, the indicator 42 is provided on the main body in a manner that does not change its position relative to the main body. The position holding accessory 40 is fixed to the arm member 9 in such a manner that the indicator 42 and the reference line of the old docking position member 10a exist at the same position in the vertical direction. Therefore, the position of the reference line of the old docking position member 10a can be maintained with a simple structure.

[0098] In addition, the main body component 41 can also be fixed to the arm component 9 using tools such as C-clamps.

[0099] Alternatively, the indicator 42 may be located in the middle of the main body component 41. The indicator point 42a may also be located in a groove in the main body component 41. The indicator point 42a may also be located in a protrusion in the main body component 41.

[0100] Industrial availability

[0101] As described above, the position holding aid and the method for replacing the stop position component disclosed herein can be used for replacing the stop position component of an elevator.

[0102] Label Explanation

[0103] 1: Hoistway; 2: Machine room; 3: Landing station; 4: Traction machine; 5: Main rope; 6: Car; 7: Counterweight; 8: Guide rail; 8a: Guide rail bracket; 9: Boom assembly; 9a: Installation assembly; 10: Stop position assembly; 10a: Old stop position assembly; 10b: New stop position assembly; 11: Stopping device; 12: Control device; 13: Mounting plate; 14: Reference plate; 15, 15a, 15b: Centerline; 16: Detection Components; 16a: base; 16b, 16c: detection part; 20: position holding aid; 21: main body component; 21a: contact surface; 22: indicating component; 22a: indicating point; 23: fixing part; 24: horizontal plate; 25: vertical plate; 26: holding plate; 27: adjusting part; 30: elongated hole; 31: bolt; 40: position holding aid; 41: main body component; 41a: contact surface; 42: indicating part; 42a: indicating point.

Claims

1. A position holding aid for a parking position component, comprising: The main body is fixed to the arm assembly on which the old stopping position component is mounted, in a manner that allows it to be detached independently of the old stopping position component, which is a component detected by the stopping device of the elevator car when the car reaches the stopping position; and An indicator portion, disposed on the main body, is located at the same position in the vertical direction as the reference line of the old parking position component when the main body is fixed to the arm component. The indicator portion is used to indicate the position of the reference line of the old parking position component in the vertical direction when it is not removed from the arm component, so that the new parking position component is installed on the arm component after the old parking position component is removed from the arm component in such a way that the position of the reference line of the new parking position component in the vertical direction is equal to the position of the reference line of the old parking position component in the vertical direction.

2. The position holding aid for the docking position component according to claim 1, wherein, The indicator portion is disposed on the main body in a manner that does not change its position relative to the main body portion.

3. A position-holding auxiliary device for a parking position component, comprising: The main body is fixed to an arm assembly on which a previous stopping position component is installed. This previous stopping position component is a component detected by the stopping device of the elevator car when the car reaches the stopping position. An indicator is provided, which, when the main body is fixed to the arm component, is fixed in such a way that its reference line is in the same vertical direction as that of the old docking position component. The indicator is used to indicate the position of the reference line of the old docking position component in the vertical direction when it is not removed from the arm component, so that the new docking position component is installed on the arm component after the old docking position component is removed from the arm component in such a way that the position of the reference line of the new docking position component in the vertical direction is equal to the position of the reference line of the old docking position component in the vertical direction.

4. The position-holding auxiliary device for the docking position component according to any one of claims 1 to 3, wherein, The main body is fixed to the inner side of the boom assembly facing the shaft where the docking position component is mounted, and when fixed to the boom assembly, it contacts the docking position component mounted on the boom assembly at two or more different locations in the vertical direction.

5. A method for replacing a docking position component, comprising: In the fixing process, when the old stopping position component is installed on the arm component, the positioning retaining accessory is fixed to the arm component on which the old stopping position component is installed, such that when the elevator car reaches the stopping position, the reference line of the old stopping position component detected by the stopping device of the car and the indicator part of the positioning retaining accessory are in the same position in the vertical direction, and the side of the main body of the positioning retaining accessory is in contact with the old stopping position component. The disassembly process, performed after the fixing process, involves removing the old docking position component from the arm component; and In the installation process following the disassembly process, the new parking position component is installed on the arm component in such a manner that the reference line of the new parking position component detected by the parking device and the indicator part of the position holding aid are located at the same position in the vertical direction, and the side of the main body of the position holding aid is in contact with the new parking position component.

6. The method for replacing the docking position component according to claim 5, wherein, In the fixing process, the position holding accessory is fixed to the arm component by contacting the old docking position component installed on the arm component at two or more different locations in the vertical direction. In the installation process, the new docking position component is installed on the arm component in such a way that the position holding aid contacts the new docking position component fixed to the arm component at two or more different positions in the vertical direction.

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