Elevator system and rope inspection method

Abstract

To provide an elevator system capable of easily inspecting a rope regardless of the setting position of a hoist.SOLUTION: An elevator system performs inspection of a rope part wound around a hoist on an inspection target floor. The elevator system comprises a calculation part, a storage part for storing an inspection position calculated by the calculation part, and a control part for moving a car based on the inspection position stored by the storage part. The calculation part calculates the inspection position to be the car stop position at the time of inspecting the rope part by using the positional information on the hoist and the positional information on the car in a state where the car stops on the inspection target floor.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention generally relates to a technique for inspecting ropes.

Background Art

[0002] In the inspection work of the main rope in an elevator without a machine room, when the car is stopped at a floor such as the reference floor (for example, a frequently used floor), an intermediate floor, etc. (hereinafter referred to as the "floor to be inspected"), the point where the main rope is wound around the sheave of the hoisting machine is set as an important inspection point, and the operator focuses on visual inspection. For the important inspection points, by previously providing a marker on the main rope wound around the sheave of the hoisting machine when the car is stopped at the floor to be inspected, the maintenance staff can inspect the important inspection points from above the car (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the hoisting machine is installed at a high place, in the technique described in Patent Document 1, it is necessary to access the hoisting machine from above the car, and it becomes difficult to provide a marker at the important inspection point of the main rope, and the inspection of the main rope cannot be easily performed.

[0005] The present invention has been made in consideration of the above points, and intends to propose an elevator system or the like that can easily inspect a rope regardless of the installation position of the hoisting machine.

Means for Solving the Problems

[0006] In order to solve such problems, in the present invention, there is provided an elevator system in which a part of a rope wound around a hoisting machine is inspected on a floor to be inspected, the inspection position of the car when the inspection of the part of the rope is performed is calculated from the position information of the hoisting machine and the position information of the car when the car stops on the floor to be inspected, a calculation unit, a storage unit that stores the inspection position calculated by the calculation unit, and a control unit that moves the car based on the inspection position stored by the storage unit are provided.

[0007] In the above configuration, for example, a maintenance worker can calculate the inspection position by setting the position information of the hoisting machine and the car, and stop the car at the inspection position. Therefore, there is no need to access the hoisting machine and provide a marker in advance at the inspection location, and the rope can be inspected regardless of the installation position of the hoisting machine. Further, according to the above configuration, for example, even if no marker is provided on the rope, the car is automatically stopped at the inspection position, so that the maintenance worker can inspect the rope.

Effect of the Invention

[0008] According to the present invention, an elevator system with high convenience can be realized. Problems, configurations, and effects other than those described above will be clarified by the description of the following embodiments.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0010] (I) First Embodiment Hereinafter, an embodiment of the present invention will be described in detail. However, the present invention is not limited to the embodiments.

[0011] In the elevator system of this embodiment, the inspection position is calculated using an equation in which the relationship between the stop position of the car at the floor to be inspected and the stop position of the car where the inspection point of the main rope passes above the car (the stop position of the car where the inspection work of the main rope is performed, hereinafter referred to as the "inspection position") is formulated. This elevator system automatically stops the car at the inspection position based on the position information of the car managed by the control unit that controls the operation of the car.

[0012] According to the above configuration, the maintenance staff can automatically stop the car at the inspection position from above the car by setting information related to the stop position of the car at the floor to be inspected (parameters for calculating the inspection position). Since the car automatically stops at the inspection position, there is no need to perform the work of providing a marker on the main rope hanging on the sheave of the hoist (marking work) in advance, so the main rope can be inspected regardless of the installation position of the hoist. In addition, since the car automatically stops at the inspection position, the marking work can be performed from above the car, so the maintenance staff does not need to access the hoist regardless of whether the marking work is performed or not, and thus the man-hours of the maintenance staff can be reduced.

[0013] In this specification and the like, notations such as "first", "second", "third", etc. are attached to identify components, and they do not necessarily limit the number or order. Also, the numbers for identifying components are used for each context, and the numbers used in one context do not necessarily indicate the same configuration in other contexts. Further, it does not prevent a component identified by a certain number from also having the functions of a component identified by another number.

[0014] Next, embodiments of the present invention will be described with reference to the drawings. The following description and drawings are examples for explaining the present invention, and for the sake of clarity of explanation, appropriate omissions and simplifications have been made. The present invention can also be implemented in various other forms. Unless otherwise particularly limited, each component may be in a single or plural number.

[0015] In the following description, in the drawings, the same elements are given the same numbers, and the description will be omitted as appropriate. Also, when describing without distinguishing between the same type of elements, the common part (excluding the branch number) of the reference signs including the branch number is used, and when distinguishing between the same type of elements for description, the reference signs including the branch number may be used. For example, when describing without particularly distinguishing the boarding areas, it may be described as "boarding area 102", and when distinguishing each boarding area for description, it may be described as "lowest floor boarding area 102-1", "middle floor boarding area 102-2".

[0016] FIG. 1 is a diagram showing a schematic configuration of an elevator system 100 according to this embodiment. In the elevator system 100, a car 110 is provided in a hoistway 101.

[0017] The car 110 is a box-shaped structure for carrying people, objects, etc., and stops at the landing 102 according to operations such as the operation of the call button by a person or the operation of the maintenance tool 104 by the maintenance staff 103. As the landings 102, a plurality of landings 102 are provided, such as the lowest floor landing 102-1, the intermediate floor landing 102-2, the top floor landing 102-3, etc. On the ceiling plate 111 of the car 110, that is, on the so-called above-car 112, a car handrail 113 is provided to prevent the maintenance staff 103 from falling into the hoistway 101. In addition, an instrument box 114 to which the maintenance tool 104 operated by the maintenance staff 103 can be connected is installed on the above-car 112. As the maintenance tool 104, for example, a portable personal computer can be used. Note that an above-car buzzer or the like for notifying the maintenance staff 103 of information may be installed on the above-car 112.

[0018] In addition, the elevator system 100 includes a counterweight 120. In the hoistway 101, the car 110 and the counterweight 120 are arranged to be movable up and down by a main rope 130.

[0019] Typically, there are a plurality of main ropes 130, which are spanned over a counterweight pulley 140, a top pulley 150, a capstan 161 of the hoisting machine 160, and a below-car pulley 170, and are supported by a support structure 105 (main rope support part) at the top of the hoistway 101. One or more markers 131 indicating inspection points may be provided on the main rope 130. For example, the area between the upper marker 131-1 and the lower marker 131-2 is an inspection range (an example of an inspection point) where the maintenance staff 103 inspects the main rope 130 on the above-car 112. In the present embodiment, the part where the wear of the main rope 130 is considered to progress most is described as the part between the markers 131. This is because the part of the main rope 130 that is hung on the capstan 161 when the car 110 stops at the floor to be inspected is hung on the capstan 161 most frequently in the acceleration and deceleration range of the car 110.

[0020] The balance weight pulley 140 is a pulley installed on the balance weight 120 to drive the balance weight 120 with the main rope 130. The top pulley 150 is installed at the top of the hoistway 101. As the top pulley 150, a car-side top pulley 150-1 and a balance weight-side top pulley 150-2 are provided. The hoist 160 is installed in the hoistway 101 and hoists and lowers the car 110 and the balance weight 120 in a ropeway manner via the main rope 130. The sheave 161 transmits the driving force of the hoist 160 to the main rope 130. The under-car pulley 170 is disposed at the lower part of the car 110, supports the car 110, and raises and lowers the car 110 via the sheave 161 by the drive of the hoist 160.

[0021] Note that in FIG. 1, an example is shown in which the hoist 160 and the sheave 161 are installed at a position higher than the floor level of the lowest landing 102-1. However, they may be installed lower or higher, and there is no limit on the height at which they are installed in the hoistway 101.

[0022] Also, in the hoistway 101, a control panel 180 as a control device for controlling the operation of the car 110 is disposed, and an IND box 190 is installed at the lowest landing 102-1. A first communication cable 181 is wired from the control panel 180 into the IND box 190. The maintenance tool 104 is connected to the first communication cable 181 via a second communication cable 182 and can communicate with the control panel 180. Thereby, the maintenance staff 103 can perform the work of setting parameters for calculating the inspection position in the landing 102 to the control panel 180 via the maintenance tool 104.

[0023] In addition, the first communication cable 181 is connected to the instrument box 114 on the car top 112 via the third communication cable 183. When the maintenance tool 104 is connected to the instrument box 114 via the second communication cable 182, it can communicate with the control panel 180. Thereby, the maintenance staff 103 can issue an instruction to the control panel 180 via the maintenance tool 104 from the car top 112 to stop the car 110 at the inspection position and perform marking operations such as attaching the marker 131 to the inspection point, inspection operations on the inspection point, and the like.

[0024] Regarding the hardware resources of the control panel 180, although the illustration is omitted, the control panel 180 includes, for example, processors such as a CPU (Central Processing Unit), MPU (Micro Processing Unit), and GPU (Graphics Processing Unit), and storage devices such as a ROM (Read Only Memory), RAM (Random Access Memory), and HDD (Hard Disc Drive). The functions of the control panel 180 (such as the calculation unit 180-1, storage unit 180-2, control unit 180-3, interface unit 180-4, etc.) may be realized, for example, by a processor reading a program stored in the ROM, HDD, etc. into the RAM and executing it (software), or by hardware such as a dedicated circuit, or by a combination of software and hardware. Note that one function of the control panel 180 may be divided into multiple functions, or multiple functions may be combined into one function. In addition, a part of the functions of the control panel 180 may be provided as another function, or may be included in other functions. Also, a part of the functions of the control panel 180 may be realized by another computer capable of communicating with the control panel 180.

[0025] The calculation unit 180-1 calculates the inspection position, which is the stop position of the car 110 when the main rope 130 is inspected. The storage unit 180-2 stores the inspection position calculated by the calculation unit 180-1. The control unit 180-3 moves the car 110 based on the inspection position stored by the storage unit 180-2. The interface unit 180-4 can communicate with the maintenance tool 104 via the first communication cable 181 or without passing through the first communication cable 181.

[0026] FIG. 2 is a diagram for explaining parameters for calculating the inspection position.

[0027] Here, in the elevator system 100, a first main rope section 201, a second main rope section 202, and a third main rope section 203 are set. As the first main rope section 201, it is set from the sheave 161 to the car-side top pulley 150-1. As the second main rope section 202, it is set from the sheave 161 to the counterweight-side top pulley 150-2. As the third main rope section 203, it is set from the counterweight pulley 140 to the counterweight-side top pulley 150-2. Also, on the main rope 130, a suspension point 204 and a center point 205 are set. The suspension point 204 is the suspension point between the sheave 161 and the main rope 130 at the stop position of the car 110 on the floor where the inspection target is located. The center point 205 is a point indicating the center of the suspension point 204. In this embodiment, the position where the center point 205 of the suspension point 204 of the main rope 130 is easily visible (for example, the position where the center point 205 coincides with the vicinity of the chest height of the maintenance staff 103) is described as a position where the inspection work is easy.

[0028] When the car 110 moves from the lowest floor landing 102-1 to the highest floor landing 102-3, the center point 205 of the suspension point 204 moves on the first main rope section 201, the second main rope section 202, and the third main rope section 203. Therefore, while the maintenance staff 103 rides on the car top 112 and operates the car 110, the state of the main rope 130 can be inspected.

[0029] Next, an equation for calculating the inspection position will be described. The following (Equation 1) to (Equation 4) are equations for specifying in which main rope section among the first main rope section 201, the second main rope section 202, and the third main rope section 203 the inspection point (for example, the center point 205) is located. When the parameter X satisfies (Equation 1), it is specified that the inspection point is in the first main rope section 201. When the parameter X satisfies (Equation 2) and (Equation 3), it is specified that the inspection point is in the second main rope section 202. When the parameter X satisfies (Equation 4), it is specified that the inspection point is in the third main rope section 203.

[0030]

Number

[0031]

Number

[0032]

Number

[0033]

Number

[0034] In this way, it is specified in which main rope section the inspection point is located from the positional relationship of the equipment related to the lifting of the car 110 (equipment related to the elevator such as the car 110, the top pulley 150, the sheave 161, etc.).

[0035] The following (Equation 5) to (Equation 7) are equations for calculating the inspection position. When it is specified that there is an inspection point in the first main rope section 201, (Equation 5) is used to calculate the inspection position (parameter Y). When it is specified that there is an inspection point in the second main rope section 202, (Equation 6) is used to calculate the inspection position (parameter Y). When it is specified that there is an inspection point in the third main rope section 203, (Equation 7) is used to calculate the inspection position (parameter Y).

[0036] [Number]

[0037] [Number]

[0038] [Number]

[0039] Here, the parameters related to (Equation 1) to (Equation 7) are shown below. H1: The height from the floor level of the lowest floor landing 102-1 to the lower end of the hoist 160 H2: The height from the lower end of the hoist 160 to the core of the sheave 161 H3: The height from the core of the sheave to the point where the main rope 130 exits the hoist 160 H4: The height from the core of the counterweight side top pulley 150-2 to the top of the hoistway 101 H5: The height from the floor of the car 110 to the upper car railing 113 + α α: The height from the upper car railing 113 to the center point 205 when a marker 131 is provided on the main rope 130 D1: The diameter of the sheave 161 D2: The diameter of the counterweight side top pulley 150-2 ST: The stroke (the height from the floor level of the lowest floor landing 102-1 to the floor level of the highest floor landing 102-3) OH: Overhead (height from the floor level of the top landing 102-3 to the top of the hoistway 101) X: Height from the floor level of the bottom landing 102-1 to the floor surface of the car 110 when the car 110 stops at the floor to be inspected Y: Height from the floor level of the bottom landing 102-1 to the floor surface of the car 110 when the center point 205 is at the same height as the height from the floor surface of the car 110 to the upper handrail 113 of the car + α L1: Length of the main rope 130 from the sheave 161 to the top pulley 150-1 on the car side L2: Length of the main rope 130 hanging on the sheave 161 L3: Length of the main rope 130 from the sheave 161 to the top pulley 150-2 on the counterweight side L4: Length of the main rope 130 hanging on the top pulley 150-2 on the counterweight side L5: Length of the main rope 130 from the top pulley 150-2 on the counterweight side to the counterweight pulley 140

[0040] Thus, from the positional relationship of the devices related to the elevation of the car 110, the position (inspection position) of the car 110 when the center point 205 of the bearing of the main rope 130 on the floor to be inspected passes the position of the handrail 113 + α on the upper part of the car is calculated.

[0041] Figure 3 is a diagram showing an example of the configuration inside the hoistway 101 when viewed from above the hoistway 101.

[0042] As shown in Figure 3, the main rope 130 is arranged so as to surround the car 110. The main rope 130-1 indicates the main rope 130 in the first main rope section 201, the main rope 130-2 indicates the main rope 130 in the second main rope section 202, and the main rope 130-3 indicates the main rope 130 in the third main rope section 203. According to such an arrangement, the operator can perform the marking work on the main rope 130 in any main rope section from the upper part 112 of the car.

[0043] FIG. 4 is a diagram showing an example of a processing flow related to the calculation of the inspection position.

[0044] In S401, the maintenance staff 103 sets parameters related to the inspection position. For example, the maintenance staff 103 connects the maintenance tool 104 to the IND box 190 via the second communication cable 182, and operates the maintenance tool 104 to set the parameters used for calculating the inspection position in the control unit 180-3 of the control panel 180. When there are multiple floors to be inspected, the maintenance staff 103 can set the parameter X for each floor to be inspected.

[0045] In S402, the control panel 180 identifies the main rope section where there is an inspection point. For example, the control panel 180 uses the parameters set in S401 to determine which of (Equation 1) to (Equation 4) is satisfied, and for each floor to be inspected, identifies in which of the first main rope section 201, the second main rope section 202, and the third main rope section 203 the inspection point of the floor to be inspected is located.

[0046] In S403, the control panel 180 calculates the inspection position. For example, for the floors to be inspected that have not been processed, the control panel 180 selects the equation corresponding to the main rope section identified in S402 from among (Equation 5) to (Equation 7), inputs the parameters set in S401 into the selected equation, and calculates the parameter Y.

[0047] In S404, the control panel 180 stores the main rope section and the inspection position. For example, the control panel 180 stores by associating the information indicating the first main rope section 201, the second main rope section 202, or the third main rope section 203 with the information indicating the inspection position corresponding to the main rope section.

[0048] In S405, the control panel 180 determines whether the inspection positions have been calculated for all the floors to be inspected. If the control panel 180 determines that the inspection positions have been calculated for all the floors to be inspected, the process ends. If it determines that the inspection positions have not been calculated for any of the floors to be inspected, the process moves to S403.

[0049] FIG. 5 is a diagram showing an example of a processing flow related to the marking operation.

[0050] In S501, the maintenance staff 103 moves to the top of the hoistway 101. For example, the maintenance staff 103 gets on the car top 112 from the landing 102, connects the maintenance tool 104 to the instrument box 114 via the second communication cable 182, and operates the maintenance tool 104 to move to the top of the hoistway 101 at a low speed.

[0051] In S502, the maintenance staff 103 operates the maintenance tool 104 to set the inspection mode for the control unit 180-3 of the control panel 180. The inspection mode is a mode for controlling the running pattern of the car 110 so as to stop the car 110 at the inspection position. When the inspection operation mode is set, for example, the control panel 180 performs control to stop the car 110 at the inspection position stored in the control panel 180 when driving downward at a low speed.

[0052] In S503, the maintenance staff 103 moves the car 110 to the inspection position. For example, the maintenance staff 103 operates the maintenance tool 104 (presses a button, icon, etc. for moving to the next inspection position) to move the car 110 downward at a low speed until it automatically stops at the inspection position stored in the control panel 180.

[0053] In S504, the maintenance staff 103 reads from the maintenance tool 104 the main rope section including the inspection point. For example, when the car 110 stops at the inspection position, information indicating the main rope section (the main rope 130 to be marked) corresponding to the inspection position is displayed on the maintenance tool 104. For example, a screen showing the configuration when looking down at the hoistway 101 as shown in FIG. 3 is displayed on the maintenance tool 104, and in the screen, an image showing the main rope 130 to be marked (the main rope 130-1 of the first main rope section 201, the main rope 130-2 of the second main rope section 202, or the main rope 130-3 of the third main rope section 203) is highlighted and displayed.

[0054] Note that the method of outputting information indicating the main rope 130 to be marked is not limited to the above description. For example, when the car 110 stops at the inspection position, the buzzer on the car may notify the maintenance staff 103 of which main rope section the inspection point appears in according to a predetermined ringing pattern.

[0055] According to the above configuration, the maintenance staff 103 can know which of the first main rope section 201, the second main rope section 202, or the third main rope section 203 can be inspected.

[0056] In S505, the maintenance staff 103 provides the marker 131 at the inspection point of the main rope 130 read from the maintenance tool 104 in S504. At this time, the maintenance staff 103 may provide the marker 131 so as to indicate the inspection range. The inspection range is set, for example, about 500 mm above and below the center point 205, that is, in a range of about 1 m centered on the center point 205.

[0057] In S506, the maintenance staff 103 checks whether the marking work has been carried out for all the floor levels to be inspected. If the maintenance staff 103 has carried out the marking work for all the floor levels to be inspected, the marking is terminated. If the maintenance staff 103 has not carried out the marking work for all the floor levels to be inspected, the process proceeds to S503, and the marking work for the next floor level to be inspected is carried out.

[0058] FIG. 6 is a diagram showing an example of the process by the control panel 180 related to the marking work. The process is started, for example, when the maintenance staff 103 operates the maintenance tool 104 in S503.

[0059] In S601, the control panel 180 determines whether it is in the inspection mode. If the control panel 180 determines that it is in the inspection mode, the process proceeds to S602. If the control panel 180 determines that it is not in the inspection mode, the process ends.

[0060] In S602, the control panel 180 moves the car 110 to the inspection position. For example, the control panel 180 uses the position information indicating the position of the car 110 managed by the control unit 180-3 to perform control to move the car 110 to the lowest inspection position closest to the said position.

[0061] In S603, the control panel 180 determines whether or not the car 110 has automatically stopped. When the control panel 180 determines that the car 110 has automatically stopped, it transfers the process to S604. When it determines that the car 110 has not automatically stopped, it returns the process to S603.

[0062] In S604, the control panel 180 notifies the maintenance tool 104 of the information indicating the main rope section corresponding to the inspection position where the automatic stop has occurred, and ends the process.

[0063] Here, the configuration of the device according to the present embodiment is not limited to the configuration shown in FIG. 1. For example, the configuration shown in FIG. 7 may be used, or other configurations may be used.

[0064] In the case of the configuration shown in FIG. 7, the control panel 180 calculates the movement amount of the car 110 until the part (inspection location) applied to the sheave 161 etc. when the car 110 is stopped becomes the same height as the height at which the main rope 130 can be inspected on the car top 112 by the movement of the car 110, from the position information of the sheave 161 etc. and the height information at which the main rope 130 can be inspected on the car top 112.

[0065] At this time, when the dimensions (diameter etc.) of the sheave 161 etc. are set, the control panel 180 can calculate the movement amount more accurately. Also, when the height of the car 110 when the car 110 is stopped is set, the control panel 180 can calculate the height of the car 110 when the inspection location becomes the same as the height at which the main rope 130 can be inspected more accurately. Also, by imposing restrictions on the main rope 130, the movable range of the car 110, etc., the control panel 180 can calculate the conditional expression for in which main rope section the above-mentioned passing occurs.

[0066] For example, when the roping method is 2:1 roping, if the moving amount of the car 110 is Z, the moving amount of the main rope 130 is 2×Z. Therefore, when the center point 205 of the load 204 of the main rope 130 passes by the position +α above the handrail 113 of the car top 112 in the state where the car 110 stops at the position +X upward from the lowest landing 102-1, the position Y of the car 110 can be calculated from X when the diameters and positional relationships of the sheave 161 and the pulley (in this example, the counterweight pulley 140) to which the main rope 130 is applied are clear. That is, by giving the diameters and positional relationships of the sheave 161 and the pulley and X, the position Y (inspection position) where the car 110 automatically stops is calculated. Further, by imposing restrictions on the movable ranges of the main rope 130 and the car 110, etc., a conditional expression for in which main rope section the above-described passing occurs can be calculated.

[0067] When the equipment related to the raising and lowering of the car 110 is arranged as shown in FIG. 7, when the diameter of the sheave 161 and the height of the sheave 161 from the lowest landing 102-1 are clear, when the car 110 moves by Z, since the moving amount of the main rope 130 is 2×Z, the position (the position from the lowest landing 102-1) after the center point 205 of the load 204 of the main rope 130 moves can be known.

[0068] For example, assume that the position of the sheave 161 is 10000 mm from the lowest landing 102-1, the diameter of the sheave 161 is 400 mm, and the car 110 moves by an amount Z = +1000 mm from the position (X = 0) of the lowest landing 102-1. At this time, the center point 205 of the load 204 of the main rope 130 moves toward the counterweight 120 side, and the moving amount is 2×1000 = 2000 mm. Therefore, the position of the center point 205 of the load 204 on the sheave 161 after the movement can be obtained as the height of the lowest landing 102-1 +10000-(2×1000 - 400×π / 4). Similarly, the position of the car 110 is the position that has moved 1000 mm from the lowest landing 102-1.

[0069] In this way, since the positions of the main rope 130 and the car 110 can be calculated, the relational expression between X and Y can be obtained from the condition that their positions are equal when they pass by each other.

[0070] Also, assuming that the movable range of the car 110 is between the lowest floor landing 102-1 and the highest floor landing 102-3, a conditional expression of 0≦Y≦ST can be obtained for the obtained Y. Therefore, it is possible to determine in which main rope section they can pass by each other from the conditional expression.

[0071] According to the present embodiment, the main rope can be easily inspected regardless of the installation position of the hoisting machine.

[0072] (II) Supplementary Note The above-described embodiment includes, for example, the following contents.

[0073] In the above-described embodiment, the case where the present invention is applied to an elevator system has been described. However, the present invention is not limited to this, and can be widely applied to various other systems, devices, methods, and programs.

[0074] Also, in the above-described embodiment, in S401, the case where the maintenance staff sets the parameters related to the inspection position has been described. However, the present invention is not limited to this. For example, before S401, some or all of the parameters related to the inspection position may be set by the maintenance staff or a person other than the maintenance staff.

[0075] Also, in the above-described embodiment, in S402, the case where the control panel 180 specifies the main rope section based on the parameters has been described. However, the present invention is not limited to this. For example, a person (for example, a maintenance staff) may specify and set the main rope section.

[0076] In addition, in the above-described embodiments, the output of information is not limited to display on a display. The output of information may be voice output by a speaker, output to a file, printing on a paper medium or the like by a printing device, projection on a screen or the like by a projector, or other modes.

[0077] Also, in the above description, information such as programs, tables, and files that implement each function can be placed in a memory, a storage device such as a hard disk or SSD (Solid State Drive), or a recording medium such as an IC card, SD card, or DVD.

[0078] The above-described embodiments have, for example, the following characteristic configurations.

[0079] (1) An elevator system (for example, elevator system 100) in which a portion of a rope (for example, main rope 130) wound around a hoist (for example, hoist 160) on a floor to be inspected is inspected, and based on the position information of the hoist and the position information of the car (for example, car 110) when the car stops on the floor to be inspected, a calculation unit (for example, calculation unit 180-1, control panel 180, circuit) that calculates an inspection position that is the stop position of the car when the portion of the rope is inspected, a storage unit (for example, storage unit 180-2, control panel 180, circuit) that stores the inspection position calculated by the calculation unit, and a control unit (for example, control unit 180-3, control panel 180, circuit) that moves the car based on the inspection position stored by the storage unit.

[0080] In the above configuration, for example, the maintenance staff can calculate the inspection position by setting the position information of the hoist and the car, enabling the car to stop at the inspection position. Therefore, there is no need to access the hoist and pre-provide markers at the inspection points. Regardless of the installation position of the hoist, the rope can be inspected. Also, according to the above configuration, for example, even if there is no marker provided on the rope, the car can be automatically stopped at the inspection position, so the maintenance staff can inspect the rope.

[0081] (2) A counterweight (e.g., counterweight 120) for balancing the above car and weight is provided. A first pulley (e.g., car-side top pulley 150-1) is provided on the above car side, and a second pulley (e.g., counterweight-side top pulley 150-2) is provided on the above counterweight side. Both ends of the above rope are supported at the top of the hoistway (e.g., hoistway 101). The above rope is spanned over the pulley of the above car (e.g., car-bottom pulley 170), the above first pulley, the sheave of the above hoist (e.g., sheave 161), the above second pulley, and the pulley of the above counterweight (e.g., counterweight pulley 140). The above calculation unit identifies in which of a first rope section (e.g., first main rope section 201) between the above first pulley and the above sheave, a second rope section (e.g., second main rope section 202) between the above sheave and the above second pulley, and a third rope section (e.g., third main rope section 203) between the above second pulley and the pulley of the above counterweight the above rope portion is included.

[0082] In the above configuration, it is identified which rope section the portion of the rope arranged by being spanned over a plurality of pulleys and to be inspected is located in. According to the above configuration, for example, when information indicating the first rope section, the second rope section, or the third rope section is output, the maintenance staff can easily grasp which rope to inspect.

[0083] (3) The elevator system includes an interface unit (e.g., interface unit 180-4, control panel 180, circuit) capable of communicating with a maintenance tool (e.g., maintenance tool 104). When the car moves to the inspection position by the control unit based on a movement instruction from the maintenance tool to the inspection position, the interface unit notifies the maintenance tool of information indicating the rope section specified by the calculation unit (see, for example, FIGS. 1 and 6).

[0084] According to the above configuration, for example, when a maintenance worker rides on the car and moves to the inspection position, information indicating the rope section to be inspected is displayed on the maintenance tool, so that a marker can be provided on the rope of the rope section to be inspected, and subsequent rope inspections can be easily performed.

[0085] (4) The elevator system includes an interface unit (e.g., interface unit 180-4, control panel 180, circuit) capable of communicating with a maintenance tool (e.g., maintenance tool 104). The interface unit receives from the maintenance tool information indicating the height from the floor level of the lowest landing to the lower end of the hoist (e.g., parameter H1), the height from the lower end of the hoist to the core of the sheave (e.g., parameter H2), the height from the core of the sheave to where the rope exits the outside of the hoist (e.g., parameter H3), the height from the floor surface of the car to the car handrail (e.g., parameter H5 - parameter α), and the height when the car is at the inspection position, which is the height from the car handrail to the center point indicating the engagement margin between the sheave and the rope on the floor of the inspection target floor (e.g., parameter α), and the length of the rope wound around the sheave (e.g., parameter L2). Based on the information received by the interface unit, the calculation unit specifies which of the first rope section, the second rope section, and the third rope section the rope portion is included in.

[0086] (5) The elevator system includes an interface unit (e.g., interface unit 180-4, control panel 180, circuit) capable of communicating with a maintenance tool (e.g., maintenance tool 104), and a counterweight (e.g., counterweight 120) is provided to balance the weight of the car. A first pulley (e.g., car-side top pulley 150-1) is provided on the car side, and a second pulley (e.g., counterweight-side top pulley 150-2) is provided on the counterweight side. Both ends of the rope are supported at the top of the hoistway (e.g., hoistway 101). The rope is spanned over the pulley of the car (e.g., car lower pulley 170), the first pulley, the sheave of the hoisting machine (e.g., sheave 161), the second pulley, and the pulley of the counterweight (e.g., counterweight pulley 140). The calculation unit calculates an inspection position, which is the stop position of the car when inspecting the rope portion, based on the information received by the interface unit.

[0087] According to the above configuration, for example, a maintenance worker can set the position information of the hoisting machine and the car via a maintenance tool at the inspection site.

[0088] (6) The interface unit receives, from the maintenance tool, information indicating the height from the floor level of the lowest landing to the floor surface of the car (e.g., parameter X) when the car stops at the floor to be inspected, the height from the floor level of the lowest landing to the lower end of the hoist (e.g., parameter H1), the height from the lower end of the hoist to the core of the sheave (e.g., parameter H2), the height from the floor surface of the car to the car handrail (e.g., parameter H5 - parameter α), the height when the car is at the inspection position, which is the height from the car handrail to the center point indicating the engagement point between the sheave and the rope on the floor to be inspected (e.g., parameter α), and the length of the rope wound around the sheave (e.g., parameter L2). The calculation unit calculates the inspection position, which is the stop position of the car when the inspection of the rope portion is performed, based on the information received by the interface unit when the rope portion is in the first rope section between the first pulley and the sheave or in the second rope section between the sheave and the second pulley.

[0089] According to the above configuration, for example, when the rope portion to be inspected is in the first rope section or the second rope section among the ropes arranged by being passed over a plurality of pulleys, the inspection position can be calculated.

[0090] (7) The interface unit receives, from the maintenance tool, information indicating the height from the floor level of the lowest landing to the floor surface of the car (e.g., parameter X) when the car stops at the floor to be inspected, the height from the center of the second pulley to the top of the hoistway (e.g., parameter H4), the height from the floor surface of the car to the car handrail (e.g., parameter H5 - parameter α), the height when the car is at the inspection position, which is the height from the car handrail to the center point indicating the engagement point between the sheave and the rope on the floor to be inspected (e.g., parameter α), the height from the floor level of the lowest landing to the floor level of the top landing (e.g., parameter ST), the height from the floor level of the top landing to the top of the hoistway (e.g., parameter OH), the length of the rope wound around the sheave (e.g., parameter L2), the length of the rope from the sheave to the second pulley (e.g., parameter L3), and the length of the rope wound around the second pulley (e.g., parameter L4). When the rope portion is in the third rope section between the second pulley and the balance weight pulley, the calculation unit calculates the inspection position, which is the stop position of the car when the inspection of the rope portion is performed, based on the information received by the interface unit.

[0091] According to the above configuration, for example, when the rope portion to be inspected is in the third rope section among the ropes laid over a plurality of pulleys, the inspection position can be calculated.

[0092] (8) A balance weight (e.g., balance weight 120) for balancing the car and the weight is provided, the hoisting machine is provided at a position higher than the floor level of the top landing, and both ends of the rope are supported at the top of the hoistway (e.g., hoistway 101).

[0093] According to the above configuration, for example, even if the hoisting machine is not provided at the lowest floor, a maintenance worker can easily inspect the rope.

[0094] (9) Based on the position information of the hoisting machine, the dimension information of the sheave of the hoisting machine (for example, parameter D1), and the position information of the car when the car stops on the floor to be inspected, the calculation unit calculates the inspection position, which is the stop position of the car when the inspection of the rope portion is performed (see, for example, FIG. 7).

[0095] According to the above configuration, for example, the calculation unit can more accurately calculate the movement amount of the inspection location by using the dimension information of the sheave.

[0096] (10) Based on the position information of the hoisting machine, the height information of the car (for example, parameter H5), and the position information of the car when the car stops on the floor to be inspected, the calculation unit calculates the inspection position, which is the stop position of the car when the inspection of the rope portion is performed (see, for example, FIG. 7).

[0097] According to the above configuration, for example, the maintenance staff can set the inspection position at a height that is easy to inspect by setting the desired height.

[0098] Also, regarding the above-described configuration, within the scope not exceeding the gist of the present invention, it may be appropriately changed, recombined, combined, or omitted.

[0099] It should be understood that the items included in the list in the form of "at least one of A, B, and C" can mean (A), (B), (C), (A and B), (A and C), (B and C), or (A, B, and C). Similarly, the items listed in the form of "at least one of A, B, or C" can mean (A), (B), (C), (A and B), (A and C), (B and C), or (A, B, and C).

Explanation of Reference Numerals

[0100] 100... elevator system, 110... car, 130... main rope, 160... hoist, 180... control panel.

Claims

1. An elevator system for inspecting a portion of a rope wound around a hoisting machine on a floor to be inspected, a calculation unit that calculates an inspection position, which is a stop position of the car when the inspection of the rope portion is performed, from the position information of the hoisting machine indicating the installation position of the hoisting machine and the position information of the car when the car stops on the floor to be inspected, a storage unit that stores the inspection position calculated by the calculation unit, a control unit that moves the car based on the inspection position stored by the storage unit, An elevator system comprising:

2. A counterweight is provided to balance the car, a first pulley is provided on the car side, and a second pulley is provided on the counterweight side, both ends of the rope are supported at the top of the hoistway, the rope is spanned over the pulley of the car, the first pulley, the sheave of the hoisting machine, the second pulley, and the pulley of the counterweight, the calculation unit identifies in which of a first rope section between the first pulley and the sheave, a second rope section between the sheave and the second pulley, and a third rope section between the second pulley and the pulley of the counterweight the rope portion is included, The elevator system according to claim 1.

3. Comprising an interface unit capable of communicating with a maintenance tool, when the car is moved to the inspection position by the control unit based on a movement instruction to the inspection position from the maintenance tool, the interface unit notifies the maintenance tool of information indicating the rope section identified by the calculation unit, The elevator system according to claim 2.

4. Comprising an interface unit capable of communicating with a maintenance tool, the interface unit receives from the maintenance tool information indicating the height from the floor level of the lowest landing to the lower end of the hoisting machine, the height from the lower end of the hoisting machine to the center of the sheave of the sheave, the height from the center of the sheave to where the rope exits the hoisting machine, the height from the floor surface of the car to the car handrail, the height when the car is at the inspection position, which is the height from the car handrail to the center point indicating the engagement margin between the sheave and the rope on the floor to be inspected, and the length of the rope wound around the sheave, Based on the information received by the interface unit, the calculation unit determines which of the first rope section, the second rope section, and the third rope section the rope portion is included in. The elevator system according to claim 2.

5. Comprising an interface unit capable of communicating with a maintenance tool, A counterweight is provided to balance the weight of the car, A first pulley is provided on the car side, and a second pulley is provided on the counterweight side, Both ends of the rope are supported at the top of the hoistway, The rope is spanned over the pulley of the car, the first pulley, the drum of the hoist, the second pulley, and the pulley of the counterweight. Based on the information received by the interface unit, the calculation unit calculates the inspection position, which is the stop position of the car when the rope portion is inspected. The elevator system according to claim 1.

6. The interface unit receives from the maintenance tool information indicating the height from the floor level of the lowest landing to the floor surface of the car when the car stops at the floor to be inspected, the height from the floor level of the lowest landing to the lower end of the hoist, the height from the lower end of the hoist to the center of the drum of the drum, the height from the floor surface of the car to the handrail of the car, the height when the car is at the inspection position, which is the height from the handrail of the car to the center point indicating the engagement allowance between the drum and the rope on the floor to be inspected, and the length of the rope wound around the drum. When the rope portion is in the first rope section between the first pulley and the drum or in the second rope section between the drum and the second pulley, based on the information received by the interface unit, the calculation unit calculates the inspection position, which is the stop position of the car when the rope portion is inspected. The elevator system according to claim 5.

7. The interface unit receives, from the maintenance tool, information indicating the height from the floor level of the lowest landing to the floor surface of the car when the car stops at the floor to be inspected, the height from the center of the second pulley to the top of the hoistway, the height from the floor surface of the car to the upper car railing, the height when the car is at the inspection position, which is the height from the upper car railing to the center point indicating the engagement point of the sheave and the rope on the floor to be inspected, the height from the floor level of the lowest landing to the floor level of the highest landing, the height from the floor level of the highest landing to the top of the hoistway, the length of the rope wound around the sheave, the length of the rope from the sheave to the second pulley, and the length of the rope wound around the second pulley. When the rope portion is in the third rope section between the second pulley and the counterweight pulley, the calculation unit calculates the inspection position, which is the stop position of the car when the inspection of the rope portion is performed, based on the information received by the interface unit. The elevator system according to claim 5.

8. A counterweight for balancing the car is provided. The hoisting machine is provided at a position higher than the floor level of the highest landing. Both ends of the rope are supported at the top of the hoistway. The elevator system according to claim 1.

9. The calculation unit calculates the inspection position, which is the stop position of the car when the inspection of the rope portion is performed, from the position information of the hoisting machine, the dimension information of the sheave of the hoisting machine, and the position information of the car when the car stops at the floor to be inspected. The elevator system according to claim 1.

10. The calculation unit calculates the inspection position, which is the stop position of the car when the inspection of the rope portion is performed, from the position information of the hoisting machine, the height information of the car, and the position information of the car when the car stops at the floor to be inspected. The elevator system according to claim 1.

11. The position information of the hoisting machine includes at least information representing the installation position of the hoisting machine in the height direction within the hoistway. The elevator system according to claim 1.

12. A rope inspection method for inspecting a portion of a rope wound around a hoist on a floor to be inspected, wherein a calculation unit calculates an inspection position, which is a stop position of the car when the inspection of the rope portion is performed, from the position information of the hoist representing the installation position of the hoist and the position information of the car when the car is stopped on the floor to be inspected, a storage unit stores the inspection position calculated by the calculation unit, and a control unit moves the car based on the inspection position stored by the storage unit. The rope inspection method includes the above steps.

Images