JP6294246B2 - Elevator device and main rope inspection method - Google Patents

Description

  The present invention relates to an elevator apparatus and a method for inspecting a main rope of the elevator apparatus, and more specifically, a plurality of pulleys are arranged in a hoistway, and the main rope is spanned a plurality of times on upper and lower pulleys in the hoistway. The present invention relates to an elevator apparatus such as a machine room-less elevator, and a main rope inspection method for the elevator apparatus.

  Usually, the inspection work and inspection work of the main rope of the elevator are performed by a maintenance person riding on the elevator car and visually observing the main rope while moving the elevator car. For example, in periodic inspections of machine room-less elevators, if there is a car between the reference floor (the floor that is frequently used) and the acceleration end position, or between the deceleration start position and the reference floor, the main rope is a sheave of the hoisting machine The part which is applied to the surface, the part with scratches and the like are visually confirmed, and the most worn part is visually confirmed. In this confirmation operation, it is common to mark in advance the location of the main rope sheave at the position of the car that is thought to be most worn by each elevator, and inspect the main rope from the top of the car around the marking position. Is.

  As this type of technology, for example, a technology described in JP2013-252936A (Patent Document 1) is known. This known technique includes an important part storage unit that stores important inspection parts on a rope, and a rope position determination unit that determines a position of the rope at that time with respect to a maintenance person position where a predetermined maintenance person is present. A drive control unit for controlling a drive state for moving the rope, wherein the drive control unit obtains information on the inspection important part from the important part storage unit, and receives the rope from the rope position determination unit. The drive control unit obtains information on the position of the car, and i) when the position of the rope relative to the maintenance person position is a deceleration part over a predetermined range before and after the important inspection part, Ii) When the position of the rope with respect to the maintenance person position is the important part of the inspection, is it stopped for a predetermined time? Alternatively, the elevator rope inspection method is characterized in that the car is driven so as to move at a lower speed than the speed i).

JP 2013-252936 A

  In the known technique, when the inspection is an important part, the maintenance staff can visually check the rope efficiently by stopping the car for a predetermined time. However, in a machine room-less elevator or the like that is arranged so that a plurality of pulleys are arranged in the hoistway and the main rope is hung up and down a plurality of times in the hoistway and folded a plurality of times, it is hung over a plurality of times. It was difficult for maintenance personnel to specify on the car where the main ropes to be inspected could be inspected.

  Therefore, the problem to be solved by the present invention is to make it possible to easily identify the main rope to be inspected among the main ropes arranged so as to be stretched up and down several times in the hoistway.

In order to solve the above-mentioned problem, the present invention supports a main rope supported at both ends in a hoistway between a plurality of pulleys and a hoisting sheave and driving the hoisting sheave. In the elevator apparatus for raising and lowering the car, a mark indicating a preset portion of the main rope wound around the hoisting sheave is provided on the car .

ADVANTAGE OF THE INVENTION According to this invention, the main rope used as a check object can be easily specified among the main ropes arranged by extending up and down several times within the hoistway. Note that problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a figure showing the schematic structure of the elevator concerning one embodiment of the present invention. It is a conceptual diagram which shows the state on the cage | basket | car of the elevator apparatus shown in FIG. It is a conceptual diagram which shows an example of the inspection rope instruction | indication seal | sticker shown in FIG. It is a conceptual diagram which shows an example of a main rope inspection location arrangement | positioning seal. It is a model figure which shows the movement condition of the center point of the allowance of the sheave and the main rope at the time of a car movement. It is a figure which shows the buzzer ringing pattern which alert | reports to an operator which marking appears when marking appears. It is a flowchart (the 1) which shows the process sequence of the main rope inspection method using a main rope inspection apparatus. It is a flowchart (the 2) which shows the process sequence of the main rope inspection method using a main rope inspection apparatus. It is a figure which shows the relationship with the expansion | extension of the main rope accompanying the progress of the inspection work in one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating a schematic configuration of an elevator apparatus according to an embodiment of the present invention. In the figure, the elevator apparatus E includes a car 9 and a counterweight 5, and the car 9 and the counterweight 5 are disposed in the hoistway 1 so that the main rope 2 can move up and down.

  A plurality of first to third main rope portions 2a, 2b, and 2c are set on the main rope 2 (generally a plurality of ropes), and are between the counterweight pulley 6, the top pulley 4, the sheave 8, and the lower pulley 18 And is supported between the support structures 3 at both ends. The counterweight pulley 6 is for driving the counterweight 5 with the main rope 2. The top pulley 4 is installed at the top of the hoistway 1, and the sheave 8 is installed below the hoistway 1 and transmits the driving force of the hoisting machine 7 driven by a motor (not shown) to the main rope 2. The car lower pulley 18 is arranged at the lower part of the car 9 and supports the car 9 and raises or lowers the car 9 via the sheave 8 by driving the hoisting machine 7.

  The main rope 2 is marked 10 when the car 9 is on an arbitrary floor. Reference numeral 11 denotes a hook of the sheave 8 and the main rope 2, and reference numeral 12 denotes a center point of the hook 11.

  On the ceiling plate 30 of the car 9, a so-called car top 31 is provided with a car handrail 14 for preventing the maintenance person 13 from dropping into the hoistway 1. On the car top 31, a car buzzer 17 for informing the maintenance staff 13 of information is further installed. In the figure, reference numeral 15 denotes the height from the car handrail 14 to the center point 12 of the hook 11 and reference numeral 16 denotes a main rope inspection range in which the maintenance staff 13 inspects the main rope 2 when working on the car. Show. The main rope inspection range 16 is set to, for example, about 500 mm above and below the center point 12, that is, a range of about 1 m centering on the center point 12.

  A control panel 23 as a control device for controlling the operation of the elevator is arranged in the hoistway 1, and an IND box 24 is installed at the lowest floor landing. A first communication cable 25 is wired from the control panel 23 to the IND box 24, and the maintenance tool 26 is connected to the first communication cable 25 via the second communication cable 27 to communicate with the control panel 23. It can be carried out. An appliance box 28 is further installed on the car 31 so that it can communicate with the control panel 23 via a third communication cable 29. For example, a portable personal computer can be used as the maintenance tool 26. The control panel 23 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory) and a RAM (Random Access Memory) or other storage devices (not shown), and is stored in a ROM or HDD (Hard Disc Drive). The program is expanded in the RAM or HDD, and the processing defined by the program is executed while using these storage devices as buffers to control each unit. Note that an ASIC (Applied Specific Integrated Circuit) may be used instead of the CPU.

  The maintenance staff 13 can communicate with the control panel 23 via the third communication cable 29 by connecting the maintenance tool 26 to the instrument box 28 via the second communication cable 27 when working on the car. It is. Thus, when a mark marked in advance on the car appears on the main rope 2, the maintenance tool 26 is used to register the car position where the marking can be checked from the car top 31 in the storage unit (not shown) in the control panel 23. be able to.

  In the figure, the landing (floor) drawn on the right side of the hoistway shows the lowest floor landing 19, the lowest floor + first floor landing 20, and the intermediate floor landing 21, and reference numeral 22 denotes a car from the lowest floor landing 19. The acceleration distance when 9 departs and the deceleration distance when the car 9 arrives at the lowest floor hall 19 from another floor (not shown) are shown.

  FIG. 2 is a conceptual diagram showing a state of the elevator car 31 shown in FIG. A car upper handrail 14 is provided on the car ceiling plate 30 that is on the upper surface of the car 9. In the figure, it can be seen that the main rope 2 on which the first, second and third main rope portions 2a, 2b, 2c are set is stretched on the car 31. The first main rope portion 2 a is a portion of the main rope 2 that hangs on the car lower pulley 18. The second main rope portion 2 b is a portion of the main rope 2 that hangs on the counterweight pulley 6. The third main rope portion 2 c is a portion of the main rope 2 that hangs on the sheave 8.

  In the figure, a first marking 121 appearing on the third main rope portion 2c, a second marking 122 appearing on the right side of the second main rope portion 2b, and a third marking 123 appearing on the left side of the second main rope portion 2b are shown. Has been. The third marking 123 is the center point of the hook of the second main rope portion 2b hanging on the sheave 8 when the car 9 is stopped on the first floor (reference floor). The second marking 122 is the center point of the hooking allowance of the second main rope portion 2b hanging on the sheave 8 when the car 9 is stopped on the second floor (reference floor + 1 floor). The first marking 121 is the amount of the third main rope portion 2c hanging on the sheave 8 when the car 9 is stopped on the fourth floor (middle floor (for example, all seven floors)). The center point. The first to third markings 121, 122, and 123 correspond to the center point 12 in FIG.

  In the present embodiment, the description will be made assuming that the portion where the wear of the main rope 2 is most likely to proceed is the portion of the first to third markings 121, 122, 123. This is the central point 12 of the allowance for the second and third main rope portions 2b, 2c hanging on the sheave 8 when the car 9 is stopped on the first floor, the second floor, and the fourth floor. This is because the first to third markings 121, 122, and 123 are most frequently applied to the sheave 8 in the acceleration / deceleration region of the car 9.

  Further, a first inspection rope instruction seal 37 pointing to the third main rope portion 2c in which the first marking 121 appears is attached to the handrail portion on the upper portion of the car upper handrail 14 as a mark. Similarly, the second inspection rope indicating seal 38 indicating the second main rope portion 2b in which the second marking 122 appears and the third inspection rope indicating seal 39 indicating the second main rope portion 2b in which the third marking 123 appears are good at the car. Affixed to the slide 14. In FIG. 2, all of the first to third markings 121, 122, and 123 are shown. However, this is shown for ease of explanation, and the first to third markings 121, 122, 123 are illustrated. Not all appear in the same basket position.

  FIG. 3 is a conceptual diagram showing an example of the inspection rope instruction seal, and shows an enlarged appearance of the first inspection rope instruction seal 37. The first inspection rope instruction seal 37 is an inspection rope instruction arrow 41 indicating the instruction direction of the third main rope portion 2c to be inspected, and a car position notation number indicating the inspection point at which position the car 9 is inspected. 42 is provided. The car position notation number 42 of the inspection rope instruction seal 37 is entered as 1 with a circled number. This number means that the third main rope portion 2c at the portion of the first marking 121 can be inspected from the passenger car 9 at an intermediate position between the third and fourth floors. That is, the relationship between the stop position of the car 9 and the main rope portions 2b and 2c to be inspected is defined in advance for each number. According to this notation, the maintenance staff 13 confirms the number on the first inspection rope instruction seal 37, and if the car 9 is moved to an intermediate position between the 3rd and 4th floors, the car from the car 31 on the car 9 It can be known that the third main rope portion 2c at the site of the first marking 121 can be inspected. Although not shown here, the second and third inspection rope indicating seals 38 and 39 are also configured in the same manner, and the position of the car to be inspected can be known by the car position notation number written in the circled numbers. Yes. In addition, other symbols such as a, b, c, etc. may be used without using numbers, and the combination of the main rope and stop position, etc., is easy to understand in field work. If there is enough.

  FIG. 4 is a conceptual diagram showing an example of a main rope inspection location arrangement seal. The main rope inspection location arrangement seal 43 is such that each main rope portion 2b, 2c pointed to by the first to third inspection rope indicating seals 37, 38, 39 is hung on either the counterweight 5 or the sheave 8 of the hoisting machine 7. It is a seal provided separately indicating whether the main rope is attached. The main rope inspection location arrangement seal 43 indicates where the first to third inspection rope instruction seals 37, 38, 39 are arranged on the car 31. Since the car position notation numbers 42 of the first to third inspection rope instruction seals 37, 38, 39 are respectively entered in the main rope inspection point arrangement seal 43, all the inspection rope instruction seals 37, 38, The pasting position on the top 31 of the car 39 can be grasped. Reference numerals 2a ', 2b', 2c 'shown on the main rope inspection location arrangement seal 43 in FIG. 4 indicate the positions of the first to third main rope portions 2a, 2b, 2c, respectively. Reference numerals 5 ′ and 7 ′ indicate the position of the counterweight 5 in the former and the position of the hoisting machine 7 in the latter, respectively.

  The main rope inspection location arrangement seal 43 is affixed to a place where the maintenance staff 13 does not step on the car, for example, the appliance box 28, and the first to third inspection rope indication seals 37, 38, 39 are peeled off. Even if they are lost, if the inspection rope instruction direction 41 and the car position notation number 42 shown on the main rope inspection point arrangement seal 43 are confirmed, the first to third inspection rope instruction seals 37, 38, 39 are pasted again. Can be easily attached. In FIG. 3, the seal 37 is illustrated as a means for instructing the inspection rope. However, the embodiment is not limited to the seal as long as it can be installed on the car handrail 14. It is also possible to use a band in which the position notation number 42 is written. As a means for instructing the inspection rope, any means can be used as long as it can be fixed to the car handrail 14 and the maintenance staff 13 can surely visually recognize the notation.

  FIG. 5 is a model diagram showing the movement of the center points (first to third markings) 121, 122, 123 of the hook 11 of the sheave 8 and the main rope 2 when the car is moving. Taking the 7th floor machine room-less elevator from the 1st floor to the 7th floor as an example, the car 9 is stopped on the 1st floor (reference floor), 2nd floor (reference floor +1), 4th floor (intermediate floor) How the first to third markings 121, 122, 123, which are the center points of the hook 11 of the sheave 8 and the main rope 2 in the car, move from the first floor to the seventh floor of the car 9. Indicates whether to move.

  As described above, the third marking 123 is the center point of the hook 11 of the sheave 8 and the main rope 2 in a state where the car 9 is stopped on the first floor (reference floor). The second marking 122 is a center point of the hook 11 of the sheave 8 and the main rope 2 in a state where the car 9 is stopped on the second floor (reference floor + 1 floor). The first marking 121 is the center point of the hook 11 of the sheave 8 and the main rope 2 in a state where the car 9 is stopped on the fourth floor (intermediate floor). In the figure, the first to third states from the left correspond to each other.

  When the car 9 moves from the first floor to the seventh floor, the first to third markings 121, 122, 123, which are the center points of the allowance 11, are taken from the second and third main rope portions 2b, 2c that are applied to the sheave 8. The second and third main rope portions 2b and 2c are engaged with the top pulley 4 and the counterweight pulley 6. Therefore, when the maintenance staff 13 rides on the car 31 and operates the car 9, while checking the positions of the first to third markings 121, 122, 123, the maintenance staff 13 uses the arrow described at the right end of FIG. The state of the main rope 2 can be checked at the position (floor).

  That is, when inspecting the first marking 121, the car 9 is positioned at an intermediate position between the third and fourth floors. When checking the second marking 122, the car 9 is positioned at an intermediate position between the 6th and 7th floors. When inspecting the third marking 123, the car 9 is positioned at an intermediate position between the 5th and 6th floors. Thereby, the part of the 2nd and 3rd main rope part 2b, 2c to which the 1st thru | or 3rd marking 121,122,123 was attached | subjected can be inspected.

  FIG. 6 is a diagram showing a ringing pattern of the buzzer 17 that notifies the operator which marking appears when the first to third markings 121, 122, 123 appear. In the present embodiment, the first to third markings 121, 122, and 123 that are marked in advance by the maintenance staff 13 during the work on the car appear at which arrow position (floor) described at the right end of FIG. 5. It is registered in a storage unit (not shown) in the control panel 23. At the time of the inspection work after the next time, the car 9 is automatically stopped at that position. At the time of automatic stop, the car buzzer 17 notifies the maintenance staff 13 which marking appears in a plurality of ringing patterns.

  For example, in the case of the car position where the third marking 123 which is the center point of the hook 11 of the sheave 8 and the main rope 2 in a state where the car 9 is stopped on the reference floor, the buzzer with the car position number 1 A ring pattern (single tone) is repeated for a certain period of time. Thereby, the maintenance staff 13 can know that the inspection can be performed at the position of the first inspection rope instruction seal 37. In the case of the car position where the second marking 122 which is the center point of the hook 11 of the sheave 8 and the main rope 2 in a state where the car 9 is stopped at the standard floor + 1 floor, the car position notation number 2 The buzzer ring pattern (two single notes) is repeated for a certain time. Thereby, the maintenance staff 13 can know that the inspection can be performed at the position of the second inspection rope instruction seal 38. Further, in the case of the car position where the first marking 121 which is the center point of the hook 11 of the sheave 8 and the main rope 2 in the state where the car 9 is stopped on the intermediate floor, the buzzer with the car position number 3 A ringing pattern (three single notes) is repeated for a certain period of time. Thereby, the maintenance staff 13 can know that the inspection is possible at the position of the third inspection rope instruction seal 39.

  In this manner, the maintenance staff 13 recognizes the position where the car 9 is registered by distinguishing the buzzer ringing pattern, and the first to third inspection rope instruction seals 37 attached to the car handrail 14. , 38, 39, the main rope 2 to be inspected can be determined and inspected from the inspection rope instruction direction 41 by searching for a seal that matches the inscription number of the car position notation number 42.

  FIG.7 and FIG.8 is a flowchart (the 1 and the 2) which shows the process sequence of the main rope inspection method using a main rope inspection apparatus. 7 and 8 show a series of procedures in both figures.

  Steps S1 to S9 in FIG. 7 are procedures of the first work for registering the first to third markings 121, 122, and 123 at the time of the first car work. Steps S10 to S17 in FIG. 8 are procedures in the case where the main rope is periodically inspected after the first time after the first work is completed.

  First, in step S1, the maintenance person 13 enters a pit (not shown) arranged at the lower part of the hoistway 1 and moves the car 9 to an arbitrary floor (first floor [reference floor]) by low speed operation.

  In step S2, markings 10 are applied to both ends of the main rope 2 hanging on the sheave 8 of the hoisting machine 7.

  When there are a plurality of inspection locations of the main rope 2, the car 9 is moved again to an arbitrary floor (2, 4th floor), and the marking 10 is applied to the main rope 2 in the same manner. If there are a plurality of markings, the color or the mark is changed so that each marking 10 can be distinguished.

  Next, the process proceeds to step S3, where it is checked whether all the markings 10 are completed. If the marking is not completed in this check, the process returns to step S2, and the processes of steps S2 and S3 are repeated. Then, when all the markings 10 are completed, the process proceeds to step S4, where the maintenance tool 26 is connected to the IND box 24 on the lowest floor and the second communication cable 27 is connected, and the car position is registered from the maintenance tool 26 to the control panel 23. Set the allowed mode and enable registration.

  When the process of step S4 ends, the process proceeds to step S5. In step S <b> 5, the maintenance person 13 gets on the car 31 on the car 9 and moves to the top of the hoistway 1 at a low speed. When the movement is completed, in step S6, the car 9 is moved downward by low-speed driving, and when the marking 10 appears, the car 9 is stopped. At this time, the stop position is a center point between the markings 10, that is, a position where the center point 12 of the hook 11 of the sheave 8 and the main rope 2 is easily inspected, for example, the center point 12 and the chest height of the maintenance staff 13. Stop at a position that matches the vicinity. This position is a position where the inspection work is easy.

  After stopping at a position where the inspection work is easy, one of the first to third markings 121, 122, 123 is applied to the center point 12 between the markings 10 in step S7. Then, the maintenance tool 26 is connected to the instrument box 28 via the second communication cable 27. Thereafter, the car position of any one of the first to third markings 121, 122, 123 is registered in the storage unit of the control unit 23. When a plurality of markings appear within a certain range at the time of registration, the registration is set so that registration is impossible when the maintenance tool 26 tries to register in the storage unit of the control unit 23. That is, a signal is transmitted from the control panel 23 to the maintenance tool 26 by communication so that registration is impossible.

  Then, in step S8, any one of the first to third inspection rope indicating seals 37, 38, 39 indicating where the main rope 2 where the first to third markings 121, 122, 123 appear is arranged, Affixed to a predetermined position of the car handrail 14. At this time, the first to third inspection rope instruction seals 37, 38, 39 are directed to the target inspection rope instruction direction 41 in the target direction, and when there are a plurality of markings to be registered, which marking The car position notation number 42 is selected and pasted so that it can be distinguished.

  In step S9, it is confirmed whether or not all of the first to third markings 121, 122, 123 have been registered. If registration is not completed, the process returns to step S6 and steps S6 to S9 are performed until registration is completed. repeat. When registration is completed, the process proceeds to step S10.

  The processing from step S1 to step S9 in FIG. 7 is the first operation for registering the marking 10.

  When the initial work is completed, as shown in FIG. 8, the maintenance staff 13 performs a main rope inspection on the car 31 after the registration of the marking position is completed.

  That is, in step S10, the maintenance person 13 connects the maintenance tool 26 to the IND hox 24 on the lowest floor via the communication cable 27, communicates with the storage unit of the control panel 23, and registers in the initial operation of FIG. An inspection operation mode for controlling the traveling pattern of the elevator is set so as to stop the car 9 at the set position. When the inspection operation mode is set, the car 9 is stopped at the registered position only when driving at low speed and driving downward.

  Further, the current registration status registered in the first work is displayed on the maintenance tool 26. Thereby, it is possible to know the position of the car 9 at the time of registration or the position of the car 9 at the time of marking, for example, the reference floor or the intermediate floor. Although the position of the car 9 at the time of marking can be changed, in this case, it is necessary to return to the initial work, confirm the marking again on the car 31 and register the position of the car 9 again. .

  In step S11, the maintenance person 13 gets on the car top 31 of the car 9, and moves to the top of the hoistway 1 at a low speed. At this time, since the inspection operation mode becomes invalid during low-speed upward driving, the car 9 does not stop.

  In step S12, the maintenance worker 13 drives the car 9 downward at a low speed, and checks the equipment in the hoistway 1 (not shown) to a position where the car 9 automatically stops.

  If the car 9 does not automatically stop in step 13, the process returns to step 12 and the check in step S13 is executed. If the car 9 is automatically stopped in step S13, the process proceeds to step 14. If the buzzer does not sound or missed in step 14, in step 15, it moves upward by a fixed distance by low speed operation, and the processing from step S12 to step S14 is executed again.

  If the buzzer sounds in step 14, the process proceeds to step 16. For example, as shown in FIG. 6, the buzzer sound is divided into buzzer sound intervals and timbres so that the maintenance staff 13 can distinguish according to the stop location. In the unlikely event that it is missed, the buzzer sound can be confirmed by moving downward a certain distance in step 15 and then operating again in step S12. Note that the buzzer can be substituted by a sound such as an announcement or the like, and the maintenance staff 13 may be notified by using a microphone sound or a screen display (not shown) of the maintenance tool 26 by signal output to the maintenance tool 26.

  In step S16, the first to third inspection rope instruction seals 37, 38, 39 attached to predetermined positions on the car 31 of the car 9 are confirmed, and the first to third inspection rope instruction seals 37, 38, 39 are confirmed. 39, the inspection rope instruction direction 41 and the car position notation number 42 are confirmed, and the main rope 2 (second and third main rope portions 2b, 2c) to be inspected is determined. Then, the predetermined main rope inspection range 16 centering on the first to third markings 121, 122, 123 of the determined main rope 2 is inspected. Next, in step S17, it is determined whether or not the inspection of all locations registered in advance is completed. If not, the process returns to step S12 and the subsequent processing is repeated. Then, the work is completed when the inspection of all the locations registered in advance is completed.

  When the inspection work is performed according to the above procedure, the elevator car 9 stops only when it arrives at a pre-registered position while the maintenance worker 13 operates and works, so that maintenance in the original work in the tower The point of the main rope 2 can be made efficiently without breaking the work flow line of the worker 13.

  FIG. 9 is a diagram showing a relationship with the elongation of the main rope accompanying the progress of the inspection work in the present embodiment. As in FIG. 5, taking the 7th floor machine room-less elevator from the first floor to the seventh floor as an example, the sheave 8 when the car 9 is moved from the second floor to the fourth floor at the first work and the next work. And the movement of the center point 12 (122, 122a) of the hook 11 of the main rope 2 are compared.

  In FIG. 9, the center point of the hook 11 of the sheave 8 and the main rope 2 at the first work is denoted by reference numeral 122, and the center point of the hook 11 of the sheave 8 and the main rope 2 at the next work is denoted by reference numeral 122a. Each is shown. Further, the extension amount of the main rope 2 from the first work to the next work is denoted by reference numeral 52, and the movement distance when the car 9 is moved from the second floor to the fourth floor at the first work and the next work is denoted by reference numeral 53. Each is shown.

  In FIG. 9, (1) is the first inspection location, (2) is the first inspection location registration position, (3) is the next inspection location, and (4) is the next inspection location registration location. As can be seen from FIG. 9, the center points 122, 122a of the allowance 11 change as shown in (1) and (3) at the first and next inspection locations, and the main rope 2 from the first work to the next work is changed. It appears as the amount of elongation 52.

  However, the positional relationship between the position of the car 9 registered on the car 31 at the time of the first work and the center point 122a of the hook 11 of the main rope 2 and the sheave 8 at the next work is the same as the car 9 at the time of the first work. Is the same because the moving distance 53 when the car moves from the second floor to the fourth floor and the moving distance 54 when the car 9 moves from the second floor to the fourth floor at the next work are equal. Therefore, the elongation of the main rope 2 does not affect the inspection method described in this embodiment.

  As described above, according to the present embodiment, the following effects can be obtained. In the following description of the effects, each part of the present embodiment corresponding to each component in the claims is shown in parentheses, or a reference symbol is attached, and the correspondence between the two is clarified.

  (1) In this embodiment, the main rope 2 supported at both ends in the hoistway 1 is bridged between the plurality of pulleys 4, 6, 18 and the hoisting sheave 8, and is wound up by the control device (control panel 23). In the elevator apparatus E that raises and lowers the car 9 supported by the main rope 2 by driving the machine sheave 8, the main rope portion (second and third) to be inspected that is wound around the hoisting sheave 8 The stop position (position shown on the right side of FIG. 5) of the car that allows visual inspection of the main rope portions 2b and 2c) from the top 31 of the car is registered in advance in the control device (control panel 23). When the car 9 stops at the stop position, the marks (inspection rope instruction seals 37, 38, 39) indicating the main rope portions (second and third main rope portions 2b, 2c) to be inspected are displayed. It was installed on the car 31. As a result, if the maintenance staff 13 sees the mark at the position where the car 9 is stopped, the main rope 2 (main main object to be inspected) out of the main ropes 2 that are arranged in the hoistway 1 in a plurality of times. The rope portions 2b, 2c) can be easily identified.

  (2) Since the mark is a seal (inspection rope indicating seals 37, 38, 39) indicating the main rope (main rope portions 2b, 2c) to be inspected, it can be easily and simply attached to a predetermined position on the car 31. The main rope portions 2b and 2c to be inspected can be easily pointed to the maintenance staff 13.

  (3) The seals 37, 38, 39 are provided with an inspection rope instruction arrow 41 indicating the direction of the main rope to be inspected, and a symbol 42 indicating the inspection location at which the car is located. , The inspection rope instruction arrow 41 is pasted toward the main rope 2 (second and third main rope portions 2b, 2c) to be inspected, so that the maintenance staff 13 inspects intuitively visually. The positions of the ropes 2a, 2b, 2c and the car 9 when checking can be grasped.

  (4) Since the seals 37, 38, 39 are attached to the car handrail 14 on the car 31 of the car 9, before the maintenance worker 13 moves up to the car 31 and starts maintenance work, It is possible to easily and reliably grasp the main rope portions 2b and 2c to be inspected and the position of the car 9 when inspecting.

  (5) Arrangement of main rope inspection points indicating whether the main rope (main rope portions 2b, 2c) indicated by the seals 37, 38, 39 is the main rope wound around the counterweight 5 or the hoisting sheave 8 Since the seal 43 is further provided, even if any of the inspection rope instruction seals 37, 38, 39 is peeled off and it is difficult for the maintenance staff 13 to check, the first to third inspection rope instruction seals 37, 38 that have been removed are removed. , 39 can be easily pasted again.

  (6) In the present embodiment, the main rope 2 supported at both ends in the hoistway 1 is bridged between the plurality of pulleys 4, 6, 18 and the hoisting sheave 8, and the control device (control panel 23). Is a method of inspecting the main rope of the elevator apparatus E that raises and lowers the car 9 supported by the main rope 2 by driving the hoisting machine sheave 8 by moving the car 9 to an arbitrary floor. A step (steps S1 and S2) of marking 10 at a predetermined position (a position away from the center 12 of the starting point) at both ends of the main rope 2 wound around, and the car 9 is moved up and down In the process of moving downward from the top of the road, the main rope 2 is monitored from the upper 31 of the car 9, and when the marking 10 is found, the car 9 is stopped, and the hoisting machine 7 is set as a car position where the marking 10 can be inspected. Driving A step (steps S6 and S7) of registering a stop position (position shown on the right side of FIG. 5) in the control device (control panel 23) to be controlled, and a main rope to be inspected when the car 9 is stopped in the step of registering And 2b, 2c and a step (step S8) of installing a mark (inspection rope indicating seals 37, 38, 39) indicating the inspection portion at a predetermined position on the car 31 (car handrail 14). It is a feature. This makes it possible to clearly indicate the main rope to be inspected and its position by means of a mark, and as a result, out of the main ropes 2 that are arranged in the hoistway 1 so as to be spanned multiple times up and down, The main rope (main rope portions 2b, 2c) and the inspection position can be easily specified.

  (7) Step of lowering from the top of the hoistway 1 to the registered stop position (Step S12), and after stopping at the registered stop position, the mark (inspection rope indicating seals 37, 38, 39) A step of checking the main rope 2 and the inspection portion (the portions of the markings 121, 122, 123) and inspecting the main ropes 2b, 2c to be inspected within a predetermined range (step S16). The car 9 is automatically stopped at the inspection position while the car 9 is being lowered, and the main rope portions 2b and 2c to be inspected can be inspected efficiently.

  (8) A seal (inspection rope instruction seal 37) including an inspection rope instruction arrow 41 indicating the direction of the main rope 2 to be inspected by the mark and a symbol 42 indicating the position of the car 9 at which to check. 38, 39), the maintenance staff 13 can grasp the main rope portions 2b and 2c to be inspected visually and the position of the car 9 at the time of the inspection.

  (9) Since the stop position is notified by sound (step S14), the maintenance staff 13 can recognize the stop position by sound.

  (10) Since the difference in the stop position is notified by the difference in the sound ringing pattern, the maintenance staff 13 can be notified of the stop position by the ringing pattern.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. All technical matters included in the technical idea described in the claims are defined by the present invention. It becomes the object of. The above embodiment shows a preferable example, but those skilled in the art can realize various alternatives, modifications, variations, and improvements from the contents disclosed in this specification, These are included in the technical scope described in the appended claims.

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Main rope 2a, 2b, 2c Main rope part 4 Top pulley 5 Balance weight 6 Balance weight pulley 7 Hoisting machine 8 Shear 9 Passenger car 10 Marking 12 Slide 23 Control panel (control device)
31 On the cage 37, 38, 39 Inspection rope indication seal (mark)
41 Inspection rope instruction direction (arrow)
42 Car position number (symbol)
43 Main rope inspection point arrangement seal E Elevator device

Claims (10)

An elevator that lifts and lowers a car supported by the main rope by driving a main rope supported at both ends in a hoistway between a plurality of pulleys and a hoisting sheave and driving the hoisting sheave by a control device. A device,
The stop position of the car that can be visually inspected from above the car is checked on the main rope portion to be inspected that is wound around the hoisting sheave, and the registered stop position is registered in advance. An elevator apparatus characterized in that a mark indicating the main rope to be inspected is installed on the car when the car stops on the car. The elevator apparatus according to claim 1,
The elevator apparatus, wherein the mark is a seal indicating a rope to be inspected. The elevator apparatus according to claim 2,
The seal is
An arrow indicating the direction of the main rope to be inspected;
A symbol indicating where the car is to be inspected, and
With
An elevator apparatus characterized in that the arrow is attached to the main rope to be inspected on the car. In the elevator apparatus according to claim 3,
An inspection rope indicating seal, wherein the seal is affixed to a car handrail on the car. The elevator apparatus according to any one of claims 2 to 4,
The elevator apparatus further comprising an equipment arrangement seal indicating whether the main rope pointed to by the seal is a main rope wound around a counterweight or a sheave of a hoisting machine. An elevator that lifts and lowers a car supported by the main rope by driving a main rope supported at both ends in a hoistway between a plurality of pulleys and a hoisting sheave and driving the hoisting sheave by a control device. An inspection method for the main rope of the device,
Moving the car to an arbitrary floor and marking the preset positions on both ends of the main rope wound around the hoisting sheave ;
In the process of moving the car downward from the top of the hoistway, the main rope is visually observed from above the car, and when the marking is found, the car is stopped and the car can be inspected as a car position. a step of registering a stop position hoist sheave to a control device for controlling drive,
When the car is stopped in the step of registering, a step of installing a main rope to be inspected and a mark indicating the inspection part at a predetermined position on the car;
A main rope inspection method characterized by comprising: The main rope inspection method according to claim 6,
Descending from the top of the hoistway to the registered stop position;
After stopping at the stop position, confirming the main rope to be inspected and the inspection portion by the mark, and inspecting the main rope to be inspected in a predetermined range;
A main rope inspection method characterized by comprising: The main rope inspection method according to claim 6 or 7,
A main rope inspection method, wherein the mark is a seal provided with an arrow indicating the direction of the main rope to be inspected and a symbol indicating at which position the car is inspected. The main rope inspection method according to claim 6 or 7,
A main rope inspection method characterized by notifying the stop position by sound. The main rope inspection method according to claim 9,
The main rope inspection method, wherein the difference in the stop position is notified by the difference in the ringing pattern of the sound.