Inspection method of elevator main rope

Abstract

To improve the inspection workability of an elevator main rope of a machine room-less elevator.SOLUTION: An inspection method of an elevator main rope that a hoist 40 is installed at the top of a hoistway 1 comprises the steps of: stopping a car 10 at a reference floor; adding and overlaying inspection marking information M2 at an inspection point of a main rope 30 in the real world through a smart glass 100 and displaying it while stopping the car 10 at the reference floor; moving the car 10 so as to bring the car 10 closer to the inspection point of the main rope 30 and keeping chasing the car while looking at the moving inspection marking information; stopping the car 10 at a position where a line L2 connecting the smart glass 100 and the inspection point of the main rope 30 with the inspection marking information M2 added, approaches horizontal; and inspecting the neighborhood of the inspection marking information M2 as the inspection point of the main rope 30 in a stopped state of the car 10.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a method for inspecting a main rope of an elevator. [Background technology]

[0002] In an elevator, the car and the counterweight are connected by a main rope and suspended in a hoistway via a sheave. The sheave causes the main rope to bend. Since elevator cars frequently stop at reference floors, when the car stops at the reference floor, the load on the part of the main rope that is curved by the sheave becomes excessive. When inspecting the main rope, it is necessary to focus on inspecting the curved part. Since a maintenance worker inspects the main rope while riding on the car and moving the car, it is difficult to identify the curved part of the main rope. Therefore, a technology has been proposed in which a marking device is provided on a hoist placed in a pit (bottom) of the hoistway, and the device is used to mark both ends of the curved part of the main rope to identify the curved part of the main rope. Such a technology is described, for example, in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-156289 A Summary of the Invention [Problem to be solved by the invention]

[0004] The marking device sprays paint onto the main rope, so maintenance is required, such as refilling the paint and cleaning the spraying part. The marking device is installed on the hoist located in the pit (bottom) of the hoistway, so maintenance workers can carry out their work by descending into the pit.

[0005] Some elevators are machine room-less, in which the hoist and control device are miniaturized and installed in the hoistway, eliminating the need for a machine room installed on the roof. Some machine room-less elevators have a hoist installed at the top of the hoistway. In the above-mentioned machine room-less elevator, when identifying the curved part of the main rope, it is necessary to mark the main rope located at the top of the hoistway. If a marking device is installed on the hoist at the top of the hoistway using the technology described in Patent Document 1, there is a possibility that maintenance workers cannot easily perform maintenance such as refilling paint and cleaning the spraying part. For this reason, in a machine room-less elevator in which the hoist is installed at the top of the hoistway, it is difficult to identify the curved part of the main rope. In the technology described in Patent Document 1, identification of the curved part of the main rope in a machine room-less elevator in which the hoist is installed at the top of the hoistway was not considered.

[0006] An object of the present invention is to solve the above-mentioned problems and provide a technology that improves the workability of identifying curved portions of the main rope in a machine room-less elevator in which a hoist is installed at the top of the hoistway. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a method for inspecting the main rope of a machine room-less elevator, in which a hoist is installed at the top of a hoistway, and a curved portion of the main rope connecting a car and a counterweight is inspected, the curved portion being hung on a sheave of the hoist, moving the elevator car to an arbitrary position and stopping the elevator car; A step of adding and superimposing inspection marking information to an inspection point of the main rope, which is the real world through smart glasses, while the elevator car is stopped at an arbitrary position; a step of moving the car so that the car and the inspection point of the main rope approach each other while watching and following the moving inspection marking information; Stopping the elevator when a line connecting the smart glass and the inspection point of the main rope to which the inspection marking information is added approaches horizontal; a step of inspecting the vicinity of the inspection marking information as an inspection point of the main rope while the car is stopped; The present invention is characterized by comprising: Effect of the Invention

[0008] According to the present invention, it is possible to improve the workability of identifying curved portions of a main rope in a machine room-less elevator in which a hoist is installed at the top of a hoistway. [Brief description of the drawings]

[0009] [Figure 1] This is an overall diagram of an elevator showing the car stopped at an arbitrary position (reference floor). [Diagram 2] 1 is a system configuration diagram of an elevator according to an embodiment of the present invention. [Diagram 3] 4 is a flowchart showing a method for inspecting a main rope according to an embodiment of the present invention. [Figure 4] FIG. 13 is a diagram showing an example of the display section 100a of the smart glasses 100 as seen by a maintenance worker 90 in a state in which trajectory marking information M1 is added to the mark 22 of the counterweight 20 in the real world. [Diagram 5] 13 is a diagram showing an example of the display unit 100a of the smart glasses 100 as seen by a maintenance worker 90 in a state in which the mark 22 of the counterweight 20 in the real world approaches the front of the maintenance worker 90. [Figure 6] 13 is a diagram showing a state in which the car 10 is stopped with the mark 22 of the counterweight 20 located near the front of the maintenance worker 90. FIG. [Figure 7] FIG. 13 is a diagram showing an example of the display unit 100a of the smart glasses 100 as seen by a maintenance worker 90 in a state in which inspection marking information M2 has been added to an inspection point of the main rope 30 in the real world. [Figure 8]FIG. 13 is a diagram showing an example of the display section 100a of the smart glasses 100 as seen by the maintenance worker 90 regarding the inspection marking information M2 immediately after the hoisting machine 40 is operated. [Figure 9] FIG. 13 is a diagram showing an example of the display section 100a of the smart glasses 100 as seen by a maintenance worker 90 regarding inspection marking information M2 during the operation of the hoist 40. [Figure 10] 13 is a diagram showing an example of the display section 100a of the smart glasses 100 as seen by a maintenance worker 90 in a state in which an inspection point of the main rope 30 is close to the front of the maintenance worker 90. FIG. [Figure 11] FIG. 13 is a diagram showing a state in which a maintenance worker 90 continues to follow moving inspection marking information M2 added to an inspection point on the main rope 30 through smart glasses 100. [Figure 12] 13 is a diagram showing a state in which inspection marking information M2 added to an inspection point on the main rope 30 approaches the front of a maintenance worker 90. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The present invention is directed to a machine room-less elevator in which a hoist is installed at the top of the hoistway. Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In principle, identical elements are given the same reference numerals in all drawings. Also, explanations of parts having the same functions will be omitted. Note that the configurations described below are merely examples, and it is not intended that the embodiments of the present invention be limited to the specific embodiments described below.

[0011] FIG. 1 is an overall configuration diagram of an elevator showing a state in which a car is stopped at an arbitrary position (reference floor). In the elevator shaft 1, there are provided a car 10 that moves vertically in the elevator shaft 1, a counterweight 20 that moves vertically relative to the car 10, a hoist 40 that raises and lowers the car 10 and the counterweight 20 via a main rope 30, and a control device 50 that controls the hoist 40 in response to a destination floor button in the car 10. The control device 50 is electrically connected to the car 10 via a tail cord 60, and electrically connected to the hoist 40 via a communication line 70. The car 10 and the counterweight 20 are connected by the main rope 30.

[0012] The hoisting machine 40 of this embodiment is installed at the top of the elevator shaft 1. The hoisting machine 40 is equipped with a sheave 41 around which the main rope 30 is hung, and the car 10 and the counterweight 20 are raised and lowered by the electric motor rotating the sheave 41.

[0013] Both ends of the main rope 30 are fixed to the upper part of the hoistway 1. One end of the main rope 30 extends from above downward, is hung on a pulley 11 at the bottom of the car 10, and is then hung on a sheave 41 of the hoisting machine 40. The other end of the main rope 30 extends from above downward, is hung on a pulley 21 at the top of the counterweight 20, and is then hung on the sheave 41 of the hoisting machine 40.

[0014] In an elevator, during non-operating hours, such as at night, the car 10 is stopped at a reference floor. The reference floor is an arbitrary position, such as the first or second floor. Since the elevator car 10 frequently stops at the reference floor, when the car is stopped at the reference floor, the load on the portion of the main rope 30 that is curved by the sheave 41 becomes excessive. When inspecting the main rope 30, it is necessary to focus on inspecting the curved portion hung on the sheave 41. A method for identifying the curved portion of the main rope 30 (the inspection point of the main rope 30) will be described below.

[0015] 2 is a system configuration diagram of an elevator according to an embodiment of the present invention. In order to identify the portion of the main rope 30 that is curved by the sheave 41 (the inspection point of the main rope 30), smart glasses 100 are used in this embodiment. The smart glasses 100 are glasses-type wearable terminals that are worn on the head of a maintenance worker 90.

[0016] The smart glasses 100 are configured by overlapping a transparent lens unit and a display unit, and add digital information to the real world that is actually being viewed. The smart glasses 100 of this embodiment include a marking control unit 101 that displays marking information as digital information by overlapping it on the real world, a marking trajectory storage unit 102 that stores the trajectory of the marking in accordance with the lifting and lowering operation of the car 10 or the counterweight 20, and an elevator control information acquisition unit 103 that acquires elevator control information of the control device 50 via the elevator control information sharing unit 12 of the car 10.

[0017] The control device 50 is equipped with an elevator control unit 51 that controls the elevator in general, including controlling the hoisting machine 40.

[0018] The car 10 includes an elevator control unit 51 of the control device 50 and an elevator control information sharing unit 12 that shares elevator control information between the elevator control information acquisition unit 103 of the smart glasses 100. The elevator control information acquisition unit 103 and the elevator control information sharing unit 12 are connected wirelessly.

[0019] The maintenance worker 90 carries an information terminal device 110 and is wirelessly connected to the elevator control information sharing unit 12. The maintenance worker 90 uses the information terminal device 110 to give instructions to move and stop the car 10.

[0020] Fig. 3 is a flowchart showing a main rope inspection method according to an embodiment of the present invention. Fig. 4 is a diagram showing an example of the display unit 100a of the smart glasses 100 as seen by the maintenance worker 90 in a state in which the trajectory marking information M1 is added to the mark 22 of the counterweight 20 in the real world. Fig. 5 is a diagram showing an example of the display unit 100a of the smart glasses 100 as seen by the maintenance worker 90 in a state in which the mark 22 of the counterweight 20 in the real world approaches the front of the maintenance worker 90. Fig. 6 is a diagram showing a state in which the car 10 is stopped with the mark 22 of the counterweight 20 coming close to the front of the maintenance worker 90.

[0021] When inspecting the main ropes 30, the maintenance worker 90 needs to get on top of the car 10. The maintenance worker 90 uses the information terminal device 110 to instruct the car 10 to be moved from the elevator platform to a position where the maintenance worker 90 can get on top of the car 10. Upon receiving the information from the information terminal device 110, the elevator control unit 51 controls the hoist 40 to move the car 10 from the elevator platform to a position where the maintenance worker 90 can get on top of the car 10. Then, the maintenance worker 90 gets on top of the car 10 from the elevator platform (step S301: process in which the maintenance worker 90 gets on top of the car 10).

[0022] Next, the maintenance worker 90, while riding on the car 10, uses the information terminal device 110 to instruct the car 10 to stop at an arbitrary position so that the counterweight 20 is located at the top. Upon receiving the information from the information terminal device 110, the elevator control unit 51 controls the hoisting machine 40 to stop the car 10 at an arbitrary position with the counterweight 20 located at the top (step S302: a process of stopping the car 10 at an arbitrary position so that the counterweight 20 is located at the top with the maintenance worker 90 riding on the car 10). The state in which the counterweight is located at the top and the car 10 is stopped at an arbitrary position is as shown in FIG. 1.

[0023] The maintenance worker 90 looks at the mark 22 of the counterweight 20, which is the real world through the smart glasses 100 (L1 in FIG. 1), and instructs the maintenance worker 90 to touch the mark 22 to add trajectory marking information M1. Upon receiving the instruction from the maintenance worker 90, the marking control unit 101 of the smart glasses 100 adds the trajectory marking information M1 to the mark 22 of the counterweight 20, which is the real world, and displays it superimposed on the display unit 100a (step S303: a process of adding the trajectory marking information M1 to the mark of the counterweight 20, which is the real world through the smart glasses 100, and displaying it superimposed).

[0024] As shown in Fig. 1, a maintenance worker 90 riding on the elevator 10 sees the mark 22 of the counterweight 20 through the smart glasses 100. Then, as shown in Fig. 4, the counterweight 20, the pulley 21, the mark 22, and the main rope 30 are displayed as the real world on the display unit 100a of the smart glasses 100. When the maintenance worker touches the part of the display unit 100a where the mark 22 is displayed, the trajectory marking information M1 is displayed superimposed on the real world. In this embodiment, the display unit 100a of the smart glasses 100 displays the cross-shaped trajectory marking information M1 superimposed on the mark 22 of the counterweight 20.

[0025] Returning to FIG. 3 , the maintenance worker 90 uses the information terminal device 110 to instruct the car 10 and the counterweight 20 to move in a direction to approach each other. Upon receiving the instruction from the maintenance worker 90, the elevator control unit 51 operates the hoist 40 to move the car 10 and the counterweight 20 so that they approach each other. At this time, the elevator control information acquisition unit 103 of the smart glasses 100 acquires information on the operation of the hoist 40 via the elevator control information sharing unit 12, and the marking control unit 101 activates the marking trajectory storage unit 102.

[0026] The maintenance worker 90 continues to follow the trajectory marking information M1 displayed superimposed on the mark 22 of the counterweight 20 while looking through the smart glasses 100, and instructs the car to stop when the mark 22 of the counterweight 20 comes close to the front of the maintenance worker 90 (see FIG. 6). In other words, the car 10 is stopped when the line L1 connecting the smart glasses 100 and the mark 22 of the counterweight 20 approaches horizontal. Upon receiving an instruction from the maintenance worker 90, the elevator control unit 51 stops the hoisting machine 40 (Step S304: A process of moving the car 10 in a direction in which the car 10 and the counterweight 20 approach each other, and continuing to follow the trajectory marking information M1 displayed superimposed on the mark 22 of the counterweight 20 while looking through the smart glasses 100, and stopping the car when the line L1 connecting the smart glasses 100 and the mark 22 of the counterweight 20 approaches horizontal).

[0027] When the elevator 10 stops at the position shown in Figure 6, the line of sight of the maintenance worker 90 through the smart glasses 100 (line L1 connecting the smart glasses 100 and the mark 22 on the counterweight 20) becomes horizontal, and the maintenance worker 90 sees the mark 22 on the counterweight 20 through the smart glasses 100 (see Figure 5).

[0028] The elevator control information acquisition unit 103 of the smart glass 100 acquires information that the hoist 40 has stopped via the elevator control information sharing unit 12, and the marking control unit 101 stores the movement pattern (trajectory) of the trajectory marking information M1 in the marking trajectory memory unit 102 (step S305: process of storing the movement pattern (trajectory) of the trajectory marking information M1). The smart glass 100 of this embodiment is configured to be able to acquire elevator information, and the start and stop of storage in the marking trajectory memory unit 102 is synchronized with the elevator information. Steps S301 to S305 are preliminary preparations for identifying the curved portion (inspection point) of the main rope 30.

[0029] Next, the operation of identifying the curved portion (inspection point) of the main rope will be described with reference to Figs. 3 and 7 to 12.

[0030] FIG. 7 is a diagram showing an example of the display unit 100a of the smart glasses 100 as seen by the maintenance worker 90 in a state in which the inspection marking information M2 is added to the inspection point of the main rope 30 in the real world. FIG. 8 is a diagram showing an example of the display unit 100a of the smart glasses 100 as seen by the maintenance worker 90 with respect to the inspection marking information M2 immediately after the operation of the hoist 40. FIG. 9 is a diagram showing an example of the display unit 100a of the smart glasses 100 as seen by the maintenance worker 90 with respect to the inspection marking information M2 during the operation of the hoist 40. FIG. 10 is a diagram showing an example of the display unit 100a of the smart glasses 100 as seen by the maintenance worker 90 in a state in which the inspection point of the main rope 30 has come near the front of the maintenance worker 90. FIG. 11 is a diagram showing a state in which the maintenance worker 90 continues to follow the moving inspection marking information M2 added to the inspection point of the main rope 30 through the smart glasses 100. FIG. 12 is a diagram showing a state in which the inspection marking information M2 added to the inspection point of the main rope 30 approaches the front of the maintenance worker 90.

[0031] In Fig. 3, a maintenance worker 90 uses an information terminal device 110 to instruct the car 10 to move to an arbitrary position (reference floor) and stop there. Upon receiving information from the information terminal device 110, the elevator control unit 51 controls the hoisting machine 40 to move the car 10 to an arbitrary position (reference floor) and stop there (step S306: process of moving the car 10 to an arbitrary position and stopping it). The state in which the car 10 has been moved to an arbitrary position (reference floor) and stopped there is as shown in Fig. 1.

[0032] The maintenance worker 90 looks at the inspection point of the main rope 30 through the smart glasses 100 (L2 in FIG. 1), and touches the position of the inspection point of the main rope 30 to instruct the addition of the inspection marking information M2. Upon receiving the instruction from the maintenance worker 90, the marking control unit 101 of the smart glasses 100 adds the inspection marking information M2 to the inspection point of the main rope 30, which is the real world, and displays it superimposed (step S307: a process of adding the inspection marking information M2 to the inspection point of the main rope 30, which is the real world through the smart glasses 100, and displaying it superimposed). The state in which the inspection marking information M2 has been added to the inspection point of the main rope is shown in FIG. 7.

[0033] As shown in Fig. 1, a maintenance worker 90 riding on the car 10 looks at the inspection points of the main rope 30 shown in Fig. 1 through smart glasses 100. Then, as shown in Fig. 7, the main rope 30 and the hoist 40 are displayed on the display unit 100a of the smart glasses 100 as the scene that is actually seen (the real world). Then, when the maintenance worker touches the part of the display unit 100a where the inspection points of the main rope 30 are displayed, the inspection marking information M2 is displayed superimposed on the scene that is actually seen. The inspection marking information M2 becomes the inspection point of the main rope 30.

[0034] Returning to FIG. 3, the maintenance worker 90 uses the information terminal device 110 to instruct the elevator to move in a direction in which the car 10 and the inspection marking information M2 (inspection point of the main rope 30) approach each other. Upon receiving the instruction from the maintenance worker 90, the elevator control unit 51 operates the hoist 40 to move the car 10 and the inspection marking information M2 so that they approach each other. At this time, the elevator control information acquisition unit 103 of the smart glasses 100 acquires information on the operation of the hoist 40 via the elevator control information sharing unit 12, and the marking control unit 101 moves the inspection marking information M2 according to the movement pattern (trajectory) of the trajectory marking information M1 stored in the marking trajectory storage unit 102 in step S304 (step S308: a process of moving the car 10 in a direction in which the inspection marking information M2 (inspection point) of the car 10 and the main rope 30 approach each other, and continuing to follow the inspection marking information M2 that moves according to the trajectory of the trajectory marking information M1 through the smart glasses).

[0035] Immediately after the hoist 40 starts operating, the inspection marking information M2 passes over the hoist 40, but as shown in Fig. 8, the inspection marking information M2 moves between the hoist 40 and the counterweight 20 and immediately moves downward. The maintenance worker 90 continues to follow the inspection marking information M2 through the smart glasses 100 in accordance with the movement of the inspection marking information M2 that moves together with the main rope 30, as shown in Figs. 9 and 11.

[0036] The maintenance worker 90 instructs the car to stop when the inspection marking information M2 comes close to the front (see FIG. 12). In other words, the car 10 is stopped when the line L2 connecting the smart glasses 100 and the inspection marking information M2 approaches horizontal. Upon receiving an instruction from the maintenance worker 90, the elevator control unit 51 stops the hoisting machine 40 (Step S309: Step of stopping the car when the line L2 connecting the smart glasses 100 and the inspection point of the main rope 30 to which the inspection marking information M2 is added approaches horizontal).

[0037] 12, the maintenance worker 90's line of sight is at position L2, and the maintenance worker 90 inspects the vicinity of the inspection marking information M2 as the inspection point of the main rope 30 (Step S310: a process of inspecting the vicinity of the inspection marking information M2 as the inspection point of the main rope at the position where the car has stopped). Through the above-mentioned process, the inspection point of the main rope 30 is identified.

[0038] According to this embodiment, even in a machine room-less elevator in which a hoist is installed at the top of the hoistway, the curved portions of the main rope 30 can be easily identified, thereby improving the efficiency of dotting the main rope 30.

[0039] In this embodiment, in identifying the curved portion of the main rope 30, the process of steps S301 to S305 is executed as a preparation in advance, but the process of steps S301 to S305 may be executed every time the main rope 30 is inspected, or may be executed based on information that has been executed in the past and stored in the marking track storage unit 102. When a building has multiple elevators (for example, elevators 1 to 3), it is preferable to store tracks corresponding to each elevator in the marking track storage unit 102, and read out the track of the track marking information M1 corresponding to the elevator to be inspected when inspecting the main rope 30. Then, it is preferable to move the inspection marking information M2 according to the track of the track marking information M1 stored in advance.

[0040] The present invention is not limited to the above-mentioned embodiment, and various modifications are included. For example, the above-mentioned embodiment has been described in detail to easily explain the present invention, and is not necessarily limited to those including all of the configurations described. Also, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Also, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration. [Explanation of symbols]

[0041] 1...hoistway, 10...car, 11...pulley, 12...elevator control information sharing unit, 20...counterweight, 21...pulley, 22...marker, 30...main rope, 40...hoisting machine, 41...sheave, 50...control device, 51...elevator control unit, 60...tail cord, 70...communication line, 90...maintenance worker, 100...smart glasses, 100a...display unit, 101...marking control unit, 102...marking trajectory memory unit, 103...elevator control information acquisition unit, 110...information terminal device, M1...trajectory marking information, M2...inspection marking information

Claims

1. A method for inspecting the main rope of a machine room-less elevator, in which a hoist is installed at the top of the elevator shaft, and a curved portion of the main rope connecting the car and the counterweight that is hung on a sheave of the hoist is inspected, moving the elevator car to an arbitrary position and stopping the elevator car; A step of adding and superimposing inspection marking information to an inspection point of the main rope, which is the real world through smart glasses, while the elevator car is stopped at an arbitrary position; a step of moving the car so that the car and the inspection point of the main rope approach each other while watching and following the moving inspection marking information; Stopping the elevator when a line connecting the smart glass and the inspection point of the main rope to which the inspection marking information is added approaches horizontal; a step of inspecting the vicinity of the inspection marking information as an inspection point of the main rope while the car is stopped; 1. An elevator main rope inspection method comprising:

2. The elevator main rope inspection method according to claim 1, An elevator main rope inspection method, wherein the arbitrary position of the elevator car is a reference floor.

3. The elevator main rope inspection method according to claim 1, The method for inspecting the main rope of an elevator is characterized in that the smart glasses are worn by a maintenance worker riding on the elevator car.

4. The elevator main rope inspection method according to claim 1, 2. An elevator main rope inspection method, comprising: a step of: moving the inspection marking information according to a trajectory of trajectory marking information stored in advance;

5. A method for inspecting the main rope of a machine room-less elevator, in which a hoist is installed at the top of the elevator shaft, and a curved portion of the main rope connecting the car and the counterweight that is hung on a sheave of the hoist is inspected, a step of stopping the car at an arbitrary position so that the counterweight is positioned upward while a maintenance worker is riding on the car; A step of adding trajectory marking information to the mark of the counterweight, which is the real world through the smart glasses, and displaying the trajectory marking information superimposed thereon; A step of moving the car in a direction in which the car and the counterweight approach each other, while continuing to track trajectory marking information displayed superimposed on the mark of the counterweight through the smart glasses, and stopping the car when a line connecting the smart glasses and the mark of the counterweight approaches horizontal; storing the trajectory of the trajectory marking information; A step of moving the elevator car to a reference floor and stopping the elevator car there; A step of adding and superimposing inspection marking information to an inspection point of the main rope, which is the real world through the smart glasses, while the elevator car is stopped at a reference floor; a step of moving the car so that the car and the inspection point of the main rope approach each other while watching and tracking the inspection marking information that moves according to the trajectory of the trajectory marking information; Stopping the elevator when a line connecting the smart glass and the inspection point of the main rope to which the inspection marking information is added approaches horizontal; a step of inspecting the vicinity of the inspection marking information as an inspection point of the main rope while the car is stopped; 1. An elevator main rope inspection method comprising:

6. The elevator main rope inspection method according to claim 5, The method for inspecting the main rope of an elevator is characterized in that the smart glasses are worn by a maintenance worker riding on the elevator car.

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