Holding system and elevator installation provided with the holding system

Abstract

A holding system (16) has, for example, a holder (30), a fixing member (50), and a detector (60). The holder (30) holds an end portion of a rope (4) for suspending an object. As an example, the object is a car (1) of an elevator. The fixing member (50) is provided to a portion of the rope (4) extending from the holder (30) toward the object side. The detector (60) detects a case where the fixing member (50) relatively displaces with respect to the holder (30) in a direction along an axis of the rope (4).

Description

Technical Field

[0001] This disclosure relates to a holding system for holding the end of a rope. Background Technology

[0002] Patent Document 1 describes a device for holding the end of a rope. The device described in Patent Document 1 includes a block installed at the end of the rope. An abnormality related to the holding of the rope 4 is detected based on an electrical signal from the block.

[0003] Prior art literature

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent No. 5572756 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In the device described in Patent Document 1, a block is installed at the end of the rope. Therefore, if the rope does not slip as it would detach from the device, no abnormality will be detected. The device described in Patent Document 1 is a technology primarily for detecting rope breakage, and suffers from poor detection accuracy in detecting abnormalities related to rope retention.

[0008] This disclosure was made to solve the problems described above. The object of this disclosure is to provide a holding system for holding the end of a rope and capable of detecting abnormalities related to rope holding with high precision.

[0009] Solution for solving the problem

[0010] The holding system disclosed herein includes: a retainer for retaining the end of a rope used to suspend an object; a fastener, a portion of the rope extending from the retainer toward the object; and a detector for detecting relative displacement of the fastener relative to the retainer in a direction along the axis of the rope.

[0011] The holding system disclosed herein includes: a retainer for holding the end of a rope for suspending an object; and a detector supported on the retainer for detecting relative displacement of a portion of the rope extending from the retainer toward the object relative to the retainer in a direction along the axis of the rope.

[0012] The disclosed holding system is for suspending an object using multiple ropes. This holding system includes: a first sensor unit and a second sensor unit; a rope-like member connected to the first sensor unit; and a measuring device for detecting positional changes of the second sensor unit relative to the first sensor unit. For each of the multiple ropes, a holding member is provided to hold the end of the rope; and a fixing member is provided in the rope, extending from the holding member toward the object side. The rope-like member is tensioned such that, regardless of which of the multiple ropes, if the fixing member is displaced relative to the holding member in a direction along the axis of the rope, the position of the second sensor unit relative to the first sensor unit changes.

[0013] The effects of the invention

[0014] The retaining system disclosed herein includes, for example, a retainer, a fixing member, and a detector. The retainer holds the end of a rope used for suspending an object. The fixing member is disposed in the rope, extending from the retainer toward the object. The detector detects the relative displacement of the fixing member with respect to the retainer in a direction along the axis of the rope. According to the retaining system of this disclosure, anomalies related to rope retention can be detected with high precision. Attached Figure Description

[0015] Figure 1 This is a diagram showing an example of an elevator system.

[0016] Figure 2 It is a three-dimensional diagram showing the end of a rope.

[0017] Figure 3 yes Figure 2 The cross-sectional view shown along line AA.

[0018] Figure 4 yes Figure 3 An enlarged view of section B is shown.

[0019] Figure 5 This is a front view showing an example of the holding system in Implementation 1.

[0020] Figure 6 This is a side view showing an example of the holding system of Implementation Method 1.

[0021] Figure 7 yes Figure 6 The cross-sectional view shown is along the CC line.

[0022] Figure 8 This is a cross-sectional view showing an example of the holding system in Implementation 2.

[0023] Figure 9 This is a cross-sectional view showing an example of the holding system of embodiment 3.

[0024] Figure 10 This is a cross-sectional view showing an example of the holding system in embodiment 4.

[0025] Figure 11 This is a cross-sectional view showing another example of the holding system in embodiment 4.

[0026] Figure 12 This is a cross-sectional view showing an example of the holding system in embodiment 5.

[0027] Figure 13 This is a cross-sectional view showing an example of the holding system of embodiment 6.

[0028] Figure 14 This is a side view showing an example of the holding system of embodiment 7.

[0029] Figure 15 yes Figure 14 The sectional view of the DD line shown.

[0030] Figure 16 This is a front view showing another example of the holding system in implementation 7.

[0031] Figure 17 This is a front view showing another example of the holding system in implementation 7.

[0032] Figure 18 This is the front view showing another example of a retainer.

[0033] Figure 19 yes Figure 18 The cross-sectional view of the EE line shown. Detailed Implementation

[0034] The following detailed description is based on the accompanying drawings. Repetitive descriptions have been simplified or omitted where appropriate. In the drawings, the same reference numerals denote the same or equivalent parts.

[0035] Implementation Method 1

[0036] Figure 1 This diagram illustrates an example of an elevator system. The elevator system includes a car 1 and a counterweight 2. The car 1 moves up and down in a hoistway 3. The counterweight 2 also moves up and down in the hoistway 3. The hoistway 3 is a vertically extending space formed within the building. The car 1 and counterweight 2 are suspended in the hoistway 3 by ropes 4.

[0037] A pair of guide rails 5 are vertically installed in the lifting path 3. The movement of the car 1 is guided by the guide rails 5. A pair of guide rails 6 are vertically installed in the lifting path 3. The movement of the counterweight 2 is guided by the guide rails 6.

[0038] The winch 7 has a drive sheave 8, a motor 9, and a brake 10. The drive sheave 8 is fixed to the drive shaft of the motor 9. The brake 10 keeps the drive sheave 8 stationary. A rope 4 is wound around the drive sheave 8 and a guide sheave 11. When the drive sheave 8 rotates due to the motor 9, the car 1 moves by means of the rope 4. The winch 7 is an example of a device for driving the car 1. Elevator systems may have multiple ropes 4, but... Figure 1 To simplify the description, only one rope is shown.

[0039] Control device 12 controls winch 7. The movement of car 1 is controlled by control device 12.

[0040] Figure 1 An elevator system using a 1:1 rope winding method was used as an example for illustration. Figure 1 In the example shown, a machine room 13 is provided above the elevator shaft 3. The winch 7 and control device 12 are located in the machine room 13. The deflector wheel 11 is rotatably mounted in the machine room 13. Alternatively, the winch 7 and control device 12 may be located within the elevator shaft 3. The winch 7 may be located at the top of the elevator shaft 3 or in the pit of the elevator shaft 3. A 2:1 rope winding method may also be used in the elevator system.

[0041] The car 1 includes a car compartment 14 and a car frame 15. The car compartment 14 forms a space for passengers to sit in. The car frame 15 supports the car compartment 14. Figure 1 In the example shown, one end 4a of rope 4 is connected to the car frame 15 via retaining system 16. The other end 4b of rope 4 is connected to the frame (not shown) of counterweight 2 via retaining system 17. When the elevator system uses a 2:1 rope winding method, end 4a of rope 4 is connected to the machine room 13 or the fixed body of the elevator shaft 3 via retaining system 16. End 4b of rope 4 is connected to the machine room 13 or the fixed body of the elevator shaft 3 via retaining system 17.

[0042] Figure 2 This is a three-dimensional view showing the end 4a of rope 4. Figure 3 yes Figure 2 The diagram shows a cross-sectional view along line AA. Rope 4 is a flat, ribbon-shaped rope. The width of rope 4 is greater than its thickness. As an example, the cross-section of rope 4 is rectangular.

[0043] To simplify the explanation, such as Figure 2The diagram shows the X, Y, and Z axes. The X-axis extends along the width of the rope 4. The Y-axis extends along the thickness of the rope 4. The Z-axis extends along the length of the rope 4. The X-axis is orthogonal to both the Y and Z axes. The Y-axis is orthogonal to the Z-axis. The car 1 is suspended by the rope 4, and tension along the Z-axis acts on the rope 4. Furthermore, when the rope 4 is wound around the drive winch 8, the rotation axis of the drive winch 8 is parallel to the X-axis. That is, the rope 4 bends around the X-axis when passing through the drive winch 8.

[0044] like Figure 3 As shown, the rope 4 includes a support member 18 and a covering member 19. The support member 18 supports the load acting on the rope 4. The support member 18 mainly supports the load acting on the rope 4 along the Z-axis direction. Figure 3 In the example shown, the cross-section of the support member 18 is flat. The width of the support member 18 is larger than its thickness. However, the cross-sectional shape of the support member 18 is not limited to this. Figure 3 The shape shown.

[0045] Figure 4 yes Figure 3 The enlarged view of section B is shown. The support member 18 has multiple high-strength fibers 20 and a resin matrix 21. The high-strength fibers 20 are reinforcing fibers such as carbon fiber or glass fiber, and are provided to achieve both lightweight and high strength. The high-strength fibers 20 are arranged along the Z-axis. The high-strength fibers 20 are bonded together by the resin matrix 21.

[0046] The cover 19 serves to protect the support member 18 from external environmental loads and physical loads. External environmental loads include loads caused by heat and humidity. Physical loads include loads caused by contact with the drive sheave 8 and the deflector sheave 11. The cover 19 also serves to provide the stable traction required for the rope 4. The cover 19 is disposed on the support member 18 in a manner that covers the entire circumference of the support member 18.

[0047] Figure 5 This is a front view showing an example of the holding system 16 in implementation method 1. Figure 6 This is a side view showing an example of the holding system 16 in embodiment 1. Figure 7 yes Figure 6 The cross-sectional view along the CC line is shown. Retention system 17 is the same as retention system 16. Hereinafter, retention system 16 will be described in detail, while the description of retention system 17 will be omitted as appropriate.

[0048] The following description describes an example where rope 4 is suspended from a fixed body in the machine room 13 via retaining system 16. That is, the Z-axis is vertically arranged. Rope 4 extends downward from retaining system 16 and is wound around the return wheel (not shown) of car 1 below retaining system 16. For the example where rope 4 extends upward from retaining system 16, its description is omitted as appropriate.

[0049] The holding system 16 includes a connector 25, a retainer 30, a fastener 50, and a detector 60.

[0050] The retainer 30 holds the end 4a of the rope 4. The retainer 30 is connected to the component 22 via the connector 25. The component 22 is fixed to the fixture of the machine room 13.

[0051] The retainer 30 includes a housing 31, a wedge 32, and a wedge 33. The housing 31 includes a support plate 34, a support plate 35, a receiving member 36, and a receiving member 37. The support plates 34 and 35 are arranged facing each other. The receiving member 36 is plate-shaped and is disposed between the support plates 34 and 35. The receiving member 37 is plate-shaped and is disposed between the support plates 34 and 35. The receiving members 36 and 37 are arranged facing each other. The distance between the receiving members 36 and 37 narrows as they face downwards.

[0052] A through hole 34a is formed in the upper part of the support plate 34. A through hole 35a is formed in the upper part of the support plate 35. Additionally, a through hole 22a is formed in the member 22. Figures 5 to 7 In the example shown, the connector 25 includes a bolt 26 and a nut 27. The bolt 26 passes through through holes 34a, 22a, and 35a. By fastening the nut 27 to the end of the bolt 26, the retainer 30 is connected to the member 22. For example, the bolt 26 is a hinged bolt. The bolt 26 can also be a shoulder bolt. As another example, the connector 25 may also include an unthreaded pin.

[0053] A space 31a with openings at the top and bottom is formed at the center of the outer casing 31. The space 31a is surrounded by a support plate 34, a support plate 35, a receiving member 36, and a receiving member 37. A rope 4 is arranged to pass through the space 31a. The rope 4 is arranged orthogonally to the support plates 34 and 35 within the space 31a. That is, one surface 4c of the rope 4 is arranged facing the surface 36a of the receiving member 36 within the space 31a. Surface 36a is the surface that forms the space 31a. The other surface 4d of the rope 4 is arranged facing the surface 37a of the receiving member 37 within the space 31a. Surface 37a is the surface that forms the space 31a.

[0054] With rope 4 positioned in space 31a, wedge 32 is inserted between rope 4 and receiving member 36. When wedge 32 is positioned between rope 4 and receiving member 36, it is supported on receiving member 36 with its surface 32a in contact with rope 4. With rope 4 positioned in space 31a, wedge 33 is inserted between rope 4 and receiving member 37. When wedge 33 is positioned between rope 4 and receiving member 37, it is supported on receiving member 37 with its surface 33a in contact with rope 4.

[0055] The wedge 32 is subjected to a downward force from the rope 4 suspending the car 1. The surface 36a of the receiving member 36 is inclined in a manner that approaches the rope 4 downwards. Therefore, the wedge 32 is subjected to a force from the surface 36a toward the direction of approaching the rope 4 due to the downward force from the rope 4. That is, the wedge 32 is pressed against the rope 4 by the receiving member 36.

[0056] Similarly, wedge 33 is subjected to a downward force from the rope 4 suspending the car 1. The surface 37a of the receiving member 37 is inclined in a manner that approaches the rope 4 downwards. Therefore, wedge 33 is subjected to a force from the surface 37a toward the rope 4 due to the downward force from the rope 4. That is, wedge 33 is pressed against the rope 4 by the receiving member 37. Thus, the rope 4 is subjected to a compressive force in the thickness direction by wedges 32 and 33. The rope 4 is securely held by the retainer 30 by being clamped by wedges 32 and 33.

[0057] Furthermore, the coefficient of friction between wedge 32 and rope 4 along surface 4c is greater than the coefficient of friction between wedge 32 and receiving member 36 along surface 36a. The coefficient of friction between wedge 33 and rope 4 along surface 4d is greater than the coefficient of friction between wedge 33 and receiving member 37 along surface 37a.

[0058] As described above, the rope 4 comprises high-strength fibers 20. To prevent fiber buckling, it is preferable that the rope 4 is not forcibly bent within the retainer 30. Figure 7 In the example shown, the end 4e of rope 4 protrudes upward between wedges 32 and 33. The portion of rope 4 protruding upward between wedges 32 and 33 (the portion on the end 4e side) is not wrapped around any other component, nor is it forcibly changed direction.

[0059] The fixing member 50 is fixed to the rope 4 adjacent to the retaining member 30. The fixing member 50 is located in the portion of the rope 4 extending from the retaining member 30 towards the car 1. The portion extending towards the car 1 refers to the part that acts under tension by suspending the car 1. Figures 5 to 7In the example shown, this part is the portion of rope 4 that extends downward from retainer 30. Fixture 50 is positioned directly below retainer 30.

[0060] The fastener 50 includes a block 51, a block 52, and a bolt 53. The blocks 51 and 52 are arranged facing each other in a manner that clamps the rope 4 in the middle, and are connected by the bolt 53. The blocks 51 and 52 clamp the rope 4 from both sides, thereby the fastener 50 is securely fixed to the rope 4.

[0061] Figures 5 to 7 This illustrates a preferred example of using bolts 53 to secure blocks 51 and 52 to rope 4. By using bolts 53, the fixed positions of blocks 51 and 52 can be easily readjusted. However, components other than bolts 53 can also be used to secure blocks 51 and 52 to rope 4.

[0062] Regarding the fastener 50, the friction between the block 51 and the rope 4 can also be increased by knurling the surface of the block 51. Similarly, the friction between the block 52 and the rope 4 can be increased by knurling the surface of the block 52.

[0063] As another example, a groove for arranging the rope 4 can also be formed in block 51 or block 52. The groove is formed along the Z-axis. When a groove is formed in block 51, block 51 can be easily positioned by simply aligning the groove with the rope 4. The groove can also be formed in both block 51 and block 52. By setting the width of the groove such that the rope 4 contacts the side of the groove when it is clamped by blocks 51 and 52, damage to the rope 4 by the fastener 50 can be suppressed.

[0064] The detector 60 detects the relative displacement of the fixing member 50 with respect to the retaining member 30 in the direction along the axis of the rope 4, i.e., along the Z-axis. The detector 60 includes a sensor unit 61, a sensor unit 62, and a measuring device 63 (in...). Figure 5 as well as Figure 6 (Not shown in the figure). The detector 60 may be supported only by the retainer 30 and the fixing member 50. The measuring device 63 may also be supported by a fixture in the mechanical chamber 13, etc.

[0065] A sensor unit 61 is disposed on a retainer 30. The sensor unit 61 includes a support arm 64, a shaft 65, and a core 66. The support arm 64 is disposed on the housing 31. As an example, the support arm 64 is disposed between a support plate 34 and a support plate 35. The support arm 64 may also be disposed on a receiving member 36 or a receiving member 37. The shaft 65 is disposed on the support arm 64. The shaft 65 extends downward from the support arm 64. The core 66 is disposed on the shaft 65. The core 66 extends downward from the shaft 65.

[0066] The support arm 64 is fixed to the housing 31, for example, using bolts. Using bolts allows for easy adjustment and replacement of the sensor unit 61. Alternatively, components other than bolts can be used to fix the support arm 64 to the housing 31.

[0067] The sensor unit 62 is mounted on the fixing member 50. As an example, the sensor unit 62 is mounted on the block 51 using bolts. By using bolts, the position of the sensor unit 62 can be easily adjusted and replaced. To fix the sensor unit 62 to the fixing member 50, other components besides bolts can also be used.

[0068] The measuring device 63 detects the change in the position of the sensor unit 62 relative to the sensor unit 61 along the Z-axis. Figures 5 to 7 This example illustrates a differential transformer type displacement sensor for detector 60. Specifically, detector 60 detects the relative displacement of core 66 and sensor section 62 along the Z-axis as a change in magnetic field. A voltage corresponding to this displacement is output from sensor section 62. Measuring device 63 measures the relative displacement of sensor section 61 and sensor section 62 along the Z-axis based on the voltage output from sensor section 62. Measuring device 63 has at least the function of outputting an abnormal signal when the measured displacement is above a threshold value.

[0069] The relative displacement of sensor unit 61 and sensor unit 62 along the Z-axis, that is, the relative displacement of retainer 30 and rope 4 along the Z-axis, may be caused by the factors shown below.

[0070] • Slippage of rope 4 at surface 32a or surface 33a

[0071] • Development of creep deformation of the covering part 19

[0072] • The movement of wedge 32 or wedge 33 along the Z-axis caused by the plastic deformation of retainer 30

[0073] • Breakage or tension variation of rope 4

[0074] Slippage of the rope 4 at surface 32a or surface 33a is an anomaly directly related to the rope 4 detaching from the retainer 30. When slippage of the rope 4 occurs in the +Z direction, it is detected by the measuring device 63 as an increase in relative displacement. When slippage of the rope 4 occurs in the -Z direction, it is detected by the measuring device 63 as a decrease in relative displacement. In addition, slippage of the rope 4 in the -Z direction may occur due to emergency stops of the car 1, etc.

[0075] Creep deformation of the cover 19 is a phenomenon in which the deformation of the cover 19 increases over time. Creep deformation of the cover 19 may occur even under a certain load applied to the rope 4. If creep deformation develops, the cover 19 may break. The breakage of the cover 19 may cause the rope 4 to detach from the retainer 30. In the example shown in this embodiment, creep deformation in the thickness direction caused by the compressive force of the wedges 32 and 33 and creep deformation in the length direction caused by tension may occur on the cover 19.

[0076] When creep deformation occurs in the thickness direction on the covering 19, the portion of the rope 4 clamped by wedges 32 and 33 thins. Therefore, wedges 32 and 33 move in the +Z direction. When creep deformation occurs in the thickness direction on the covering 19, the increase in relative displacement is detected by the measuring device 63.

[0077] When creep deformation occurs in the longitudinal direction on the cover 19, the rope 4 moves in the +Z direction relative to the retainer 30. Therefore, when creep deformation occurs in the longitudinal direction on the cover 19, the increase in relative displacement is detected by the measuring device 63.

[0078] Furthermore, when tension changes occur, the measured displacement measured by the measuring device 63 changes. The change caused by tension changes recovers within a short time, while the change in measured displacement caused by creep deformation occurs over a long period. Therefore, for example, when there are no passengers in the car 1, by measuring the relative displacement by the measuring device 63, it is possible to distinguish between changes caused by tension changes and changes caused by creep deformation.

[0079] Plastic deformation of the retainer 30 is caused by excessive stress acting on it. Plastic deformation of the retainer 30 may also occur due to improper installation. If plastic deformation occurs in the retainer 30, the holding condition of the rope 4 changes. Therefore, plastic deformation of the retainer 30 may be a cause of damage to the rope 4 or the rope 4 detaching from the retainer 30.

[0080] When the outer shell 31 undergoes plastic deformation, the shape of the space 31a changes. Therefore, when the outer shell 31 undergoes plastic deformation, the position of either wedge 32 or wedge 33 within the space 31a changes. Furthermore, when either wedge 32 or wedge 33 undergoes plastic deformation, the position of that wedge within the space 31a changes. Therefore, when the retaining member 30 undergoes plastic deformation, the change in relative displacement is detected by the measuring device 63.

[0081] When a breakage occurs in the rope 4 between the retainer 30 and the fixing member 50, the measuring device 63 detects an increase in relative displacement. On the other hand, when the rope 4 breaks at a position closer to the car 1 than the fixing member 50, the portion of the rope 4 held by the retainer 30 contracts due to the loss of tension. Therefore, when this breakage occurs, the measuring device 63 detects a decrease in relative displacement. The same detection can also be performed on damage to the rope 4 prior to its breakage.

[0082] When tension changes occur on rope 4, the elongation of rope 4 changes. Therefore, when tension changes occur on rope 4, the change in relative displacement is detected by measuring device 63.

[0083] Thus, according to the example shown in this embodiment, anomalies related to the retention of rope 4 can be detected with high precision.

[0084] Furthermore, even when the fastener 50 is fixed to the end 4e side of the rope 4, it is possible to detect the rope 4 detaching from the retainer 30. However, there is no tension on the end 4e side of the rope 4. Therefore, even if the fastener 50 is fixed to the end 4e side of the rope 4, it is impossible to detect rope 4 breaking or the like.

[0085] As described above, when rope 4 breaks, the portion of rope 4 held by retainer 30 is no longer under tension. Therefore, it can also be assumed that when rope 4 breaks, wedges 32 and 33 will move relative to housing 31 in the -Z direction. However, in the applicant's experiment, even after the tension was released, no slippage occurred between wedges 32 and 33 and housing 31. Even when the same experiment was performed with grease applied to surfaces 36a and 37a, the results remained unchanged. Based on this experiment, it can be seen that providing a fixing member 50 in the portion of rope 4 extending from retainer 30 toward car 1 is effective for detecting rope 4 breakage.

[0086] In the example shown in this embodiment, since the fixing member 50 is provided in the portion of the rope 4 extending from the retainer 30 towards the car 1, the retainer 30 can be miniaturized and made lighter. Furthermore, since the fixing member 50 does not need to be installed inside the retainer 30, its installation and position adjustment can be easily performed. Moreover, in the example shown in this embodiment, the distance between the retainer 30 and the fixing member 50 can be adjusted arbitrarily. To further improve the detection accuracy of the detector 60, the fixing member 50 can also be positioned at a distance greater than a certain distance from the retainer 30.

[0087] In this embodiment, an example of a differential transformer type displacement sensor being described is used as the detector 60. As another example, the detector 60 can be a calibrated, variable resistance, optical, eddy current, ultrasonic, or capacitive displacement sensor. If it is a non-contact displacement sensor such as an optical type, damage to the displacement sensor can be prevented during earthquakes or emergency stops.

[0088] In this embodiment, an example of the measuring device 63 having the function of outputting an abnormal signal has been described. The measuring device 63 may also have the function of establishing a correlation between measured displacement and time information and storing them one by one. By having this function, the state when an abnormal signal is output can be grasped later.

[0089] The threshold for the measuring device 63 to output abnormal signals can also be set by any method. As an example, the threshold is expressed as an absolute value. To facilitate the application of this system to various elevator devices, the threshold can also be expressed as the amount of change from the normal state. The threshold can also be set based on the tension acting on the rope 4. The displacement data measured by the measuring device 63 can also be used as input for machine learning or deep learning. In this learning, other measured data such as the torque data of the motor 9 can also be used as input for further processing. This learning can also be used to detect abnormalities related to the holding of the rope 4, or to predict the lifespan of the rope 4 until an abnormality such as breakage occurs.

[0090] The measuring device 63 preferably includes a processing circuit 100, which includes a processor 101 and a memory 102 as hardware resources. The measuring device 63 performs the above-mentioned functions by having the processor 101 execute a program stored in the memory 102. The memory 102 can be a semiconductor memory or the like.

[0091] like Figure 7 As shown, the measuring device 63 may also include a processing circuit 100, which includes a processor 101, a memory 102, and dedicated hardware 103. Figure 7 This example illustrates a portion of the functions of the measuring device 63 implemented via dedicated hardware 103. All functions of the measuring device 63 can also be implemented via dedicated hardware 103. The dedicated hardware 103 can be a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

[0092] Implementation Method 2

[0093] In Embodiment 1, an example was described where the detector 60 is supported by the housing 31 and the fixing member 50. The difference between the holding system 16 in this embodiment and the example disclosed in Embodiment 1 is that the detector 60 is supported by a wedge 32 or a wedge 33 and the fixing member 50. This difference will be described in detail below. Aspects not specifically described in this embodiment are the same as those disclosed in Embodiment 1.

[0094] Figure 8 This is a cross-sectional view showing an example of the holding system 16 in embodiment 2. Figure 8 Equivalent to Figure 6 The cross-sectional view shown at the CC line. Figure 8 In the example shown, the detector 60 includes a sensor section 61, a sensor section 62, and a measuring device 63. The sensor section 61 includes a support arm 64, a shaft 65, and a core 66. The support arm 64 is disposed on the wedge 32. The shaft 65 is disposed on the support arm 64 and extends downward from the support arm 64. The core 66 is disposed on the shaft 65 and extends downward from the shaft 65.

[0095] Figure 8 This illustrates an example where the support arm 64 is located at the lower end of the wedge 32. As another example, the support arm 64 can also be fixed to the wedge 32 by forming a through hole in the support plate 34 through which it passes. The support arm 64 can also be located on the wedge 33.

[0096] In the example shown in this embodiment, even if wedges 32 and 33 move relative to the housing 31, the position of sensor section 62 relative to sensor section 61 does not change. Therefore, the measuring device 63 does not detect any abnormalities. According to the example shown in this embodiment, it is possible to detect with high precision only abnormalities that are easily directly related to the rope 4 detaching from the retainer 30.

[0097] Implementation Method 3

[0098] In Embodiment 1, an example of a holding system 16 having one detector 60 was described. The holding system 16 of this embodiment differs from the example disclosed in Embodiment 1 in that it has multiple detectors 60. This difference will be explained in detail below. Aspects not specifically described in this embodiment are the same as those disclosed in any of Embodiments 1-2.

[0099] Figure 9 This is a cross-sectional view showing an example of the holding system 16 in embodiment 3. Figure 9 Equivalent to Figure 6 The cross-sectional view shown at the CC line. Figure 9In the example shown, in addition to the connector 25, retainer 30, and fastener 50, the retaining system 16 also includes two detectors 60. In the following description, detectors of one side are marked with "-1" after reference numeral 60, and detectors of the other side are marked with "-2" after reference numeral 60. That is, the retaining system 16 includes detectors 60-1 and 60-2.

[0100] Detector 60-1 is the same as detector 60 disclosed in Embodiment 2. Detector 60-1 includes sensor section 61-1, sensor section 62-1, and measuring device 63-1. Sensor section 61-1 includes support arm 64-1, shaft 65-1, and core 66-1. Support arm 64-1 is disposed on wedge 32. Support arm 64-1 may also be disposed on wedge 33.

[0101] The sensor unit 62-1 is mounted on the block 51 of the fixing member 50. The measuring device 63-1 detects the change in the position of the sensor unit 62-1 relative to the sensor unit 61-1 along the Z-axis.

[0102] Detector 60-2 is identical to detector 60 disclosed in Embodiment 1. Detector 60-2 includes sensor section 61-2, sensor section 62-2, and measuring device 63-2. Sensor section 61-2 includes shaft 65-2 and core 66-2. Furthermore, in... Figure 9 In the example shown, the sensor unit 61-2 does not have a support arm 64. Figure 9 In the example shown, shaft 65-2 is directly disposed on housing 31. As an example, shaft 65-2 is disposed at the lower end of receiving member 37.

[0103] The sensor unit 62-2 is mounted on the block 52 of the fixing member 50. The measuring device 63-2 detects the change in the position of the sensor unit 62-2 relative to the sensor unit 61-2 along the Z-axis.

[0104] In the example shown in this embodiment, the relative displacement λ1 between the wedge 32 and the fixing member 50 is measured by the measuring device 63-1. The relative displacement λ2 between the outer shell 31 and the fixing member 50 is measured by the measuring device 63-2. Based on the difference between the relative displacement λ1 and the relative displacement λ2, the relative displacement λ3 between the wedge 32 and the outer shell 31 can be calculated.

[0105] As shown in this embodiment, any anomaly that is directly related to the rope 4 detaching from the retainer 30 can be detected based on the relative displacement λ1. Furthermore, changes in the retaining state that may be precursors to an anomaly can be distinguished from the anomaly itself based on the relative displacement λ3. Therefore, anomaly detection and prediction can be performed with high accuracy.

[0106] Furthermore, in the example shown in this embodiment, an example of obtaining the relative displacement λ3 through calculation has been described. The relative displacement λ3 can also be directly measured using detector 60-1 or detector 60-2.

[0107] Implementation Method 4

[0108] The detection method of the detector 60 in the holding system 16 of this embodiment differs from the example disclosed in Embodiment 1. This difference will be described in detail below. Aspects not specifically described in this embodiment are the same as those disclosed in any of Embodiments 1 to 3.

[0109] Figure 10 This is a cross-sectional view showing an example of the holding system 16 in embodiment 4. Figure 10 Equivalent to Figure 6 The cross-sectional view shown at the CC line. Figure 10 In the example shown, detector 60 includes support 67, support 68, linear sensor 69, and measuring device 63.

[0110] The support portion 67 is provided on the retainer 30. Figure 10 In the example shown, the support portion 67 is disposed between the support plate 34 and the support plate 35 of the housing 31. The support portion 67 may also be disposed on the receiving member 36 or the receiving member 37. The support portion 67 may also be disposed on the wedge 32 or the wedge 33.

[0111] The support portion 68 is provided on the fastener 50. As an example, the support portion 68 is provided on the block 51 using bolts.

[0112] A linear sensor 69 is disposed between the support portion 67 and the support portion 68. Figure 10 In the example shown, the upper end of the linear sensor 69 is fixed to the support 67. The lower end of the linear sensor 69 is fixed to the support 68. The linear sensor 69 is arranged vertically along the Z-axis.

[0113] The measuring device 63 measures the deformation of the linear sensor 69. That is, the detector 60 detects the change in force (deformation) acting on the linear sensor 69 by taking the relative displacement along the Z-axis between the support portion 67 fixed to the holder 30 and the support portion 68 fixed to the fixing member 50 as the change in the force (deformation) acting on the linear sensor 69.

[0114] The linear sensor 69 can be any component as long as the measuring device 63 can measure the change in applied force. As an example, a wire can be used as the linear sensor 69. In this case, the measuring device 63 measures the change in wire deformation caused by the change in applied force as a change in resistance. As another example, a steel wire with a deformation meter attached can also be used as the linear sensor 69. An optical fiber can also be used as the linear sensor 69. A spring component can also be used as the linear sensor 69, and the measuring device 63 measures the magnitude of the spring's reaction force.

[0115] As a simple example, the measuring device 63 can also detect only the breakage of the linear sensor 69. In this case, a conductor is used as the linear sensor 69. The measuring device 63 measures the conduction state of the linear sensor 69. In this example, the material and thickness of the linear sensor 69 are selected so that the linear sensor 69 breaks when the relative displacement between the retainer 30 and the fixing member 50 reaches a threshold. According to this example, miniaturization and cost reduction of the retaining system 16 can be achieved.

[0116] Figure 11 This is a cross-sectional view showing another example of the holding system 16 in embodiment 4. Figure 11 Equivalent to Figure 6 The cross-sectional view shown at the CC line. Figure 11 In the example shown, the linear sensor 69 includes a wire 70, a wire 71, a socket 72, and a socket 73. The wire 70 is fixed to the support portion 67. The wire 70 extends downward from the support portion 67. The socket 72 is provided at the lower end of the wire 70.

[0117] The wire 71 is fixed to the support portion 68. The wire 71 extends upward from the support portion 68. A socket 73 is provided at the upper end of the wire 71. By connecting the socket 73 to the socket 72, the wires 70 and 71 are arranged in a straight line along the Z-axis.

[0118] exist Figure 11 In the example shown, if connector 73 is connected to connector 72, the measuring device 63 detects that the linear sensor 69 is in a conductive state. When connector 73 is disconnected from connector 72, the measuring device 63 detects that the linear sensor 69 is in a non-conductive state. If... Figure 11 The example shown makes it easy to set the threshold mentioned above.

[0119] The detector 60 in this embodiment can also be used in detector 60-1 or detector 60-2 disclosed in embodiment 3. The detector 60 in this embodiment can also be used in both detector 60-1 and detector 60-2.

[0120] Implementation Method 5

[0121] The detector 60 of the holding system 16 in this embodiment differs from the example disclosed in Embodiment 1. This difference will be described in detail below. Aspects not specifically described in this embodiment are the same as those disclosed in any of Embodiments 1 to 4.

[0122] Figure 12 This is a cross-sectional view showing an example of the holding system 16 in embodiment 5. Figure 12 Equivalent to Figure 6 The cross-sectional view shown at the CC line. Figure 12 In the example shown, the detector 60 includes a sensor unit 61, a sensor unit 62, and a measuring device 63.

[0123] The sensor unit 61 is disposed on the retaining member 30. The sensor unit 61 includes a support arm 64, a shaft 65, and a receiving member 74. The support arm 64 is disposed on the housing 31. Figure 12 In the example shown, the support arm 64 is disposed between the support plate 34 and the support plate 35. The support arm 64 may also be disposed on the receiving member 36 or the receiving member 37. The support arm 64 may also be disposed on the wedge 32 or the wedge 33.

[0124] A shaft 65 is disposed on a support arm 64. The shaft 65 extends downward from the support arm 64. The shaft 65 passes through a through hole 62a formed in the sensor portion 62, and its lower end is disposed inside the sensor portion 62. A receiving member 74 is disposed at the lower end of the shaft 65. The width of the receiving member 74 is larger than the width of the through hole 62a. That is, the receiving member 74 cannot pass through the through hole 62a.

[0125] The measuring device 63 detects the change in position of the sensor unit 62 relative to the sensor unit 61 along the Z-axis. If the detector 60 is a differential transformer type displacement sensor, then the receiving member 74 is a core.

[0126] exist Figure 12 In the example shown, when the fixing member 50 moves a certain distance away from the retaining member 30, the receiving member 74 of the sensor section 61 contacts the sensor section 62 from below. Thus, the detector 60 bears a portion of the force acting on the rope 4. The detector 60 can also bear the entire force acting on the rope 4.

[0127] In the example shown in this embodiment, the sensor unit 62 is supported by the sensor unit 61 by the fixing member 50 moving a certain distance away from the retaining member 30. The force acting on the rope 4 can be reduced by the detector 60, thereby preventing the rope 4 from detaching from the retaining member 30. In addition, even if the rope 4 does detach from the retaining member 30, it can be prevented from falling.

[0128] In the example shown in this embodiment, sensor units 61 and 62 are required to have the function of bearing the force acting on the rope 4. Therefore, high-strength materials are preferably used as materials for sensor units 61 and 62. As an example, ferrous materials such as carbon steel, high-strength steel, rolled steel, stainless steel, and structural alloy steel, as well as plated steel based on these materials, can also be used as materials for sensor units 61 and 62. As another example, materials such as aluminum, magnesium, titanium, brass, and copper, as well as alloy materials, can also be used as materials for sensor units 61 and 62.

[0129] In this embodiment, an example of the measuring device 63 detecting the change in relative displacement between sensor section 61 and sensor section 62 has been described. As another example, the measuring device 63 can also measure the conduction state of sensor section 61 and sensor section 62.

[0130] In this embodiment, an example of the detector 60 bearing the force acting on the rope 4 has been described. As another example, the retaining system 16 may be further supplemented with a mechanism that bears a portion of the force acting on the rope 4 when the fixing member 50 moves a certain distance away from the fixing member 30.

[0131] Implementation Method 6

[0132] The detector 60 of the holding system 16 in this embodiment differs from the example disclosed in Embodiment 1. This difference will be described in detail below. Aspects not specifically described in this embodiment are the same as those disclosed in any of Embodiments 1 to 5.

[0133] Figure 13 This is a cross-sectional view showing an example of the holding system 16 in embodiment 6. Figure 13 Equivalent to Figure 6 The cross-sectional view shown at the CC line. Figure 13 In the example shown, the retaining system 16 includes a connector 25, a retainer 30, and a detector 60. The retaining system 16 does not include a fixing element 50.

[0134] exist Figure 13 In the example shown, detector 60 detects the relative displacement of the portion of the rope 4 extending from retainer 30 toward car 1 relative to retainer 30 in the direction along the axis of rope 4, i.e., along the Z-axis. Detector 60 includes a sensor unit 75 and a measuring device 63. Detector 60 may be supported solely by retainer 30. The measuring device 63 may also be supported by a fixed structure in the machine room 13, etc.

[0135] The sensor unit 75 is disposed on the retainer 30. The sensor unit 75 includes a support block 76, a support arm 77, and a roller 78. The support block 76 is disposed on the housing 31. Figure 13 In the example shown, the support block 76 is disposed between the support plate 34 and the support plate 35. The support block 76 may also be disposed on the receiving member 36 or the receiving member 37. The support block 76 may also be disposed on the wedge 32 or the wedge 33.

[0136] A support arm 77 is disposed on a support block 76. The support arm 77 extends downward from the support block 76. A roller 78 is rotatably disposed on the support arm 77. The roller 78 is in contact with the surface 4c of the rope 4 directly below the retainer 30. The roller 78 rotates when the rope 4 moves relative to the retainer 30 in the direction along the Z-axis. The measuring device 63 measures the amount of rotation of the roller 78. That is, based on the amount of rotation of the roller 78, the measuring device 63 measures the relative displacement of the portion of the rope 4 extending from the retainer 30 toward the car 1 side with respect to the retainer 30.

[0137] The retaining system 16 shown in this embodiment does not include the fastener 50. Therefore, the number of parts in the retaining system 16 can be reduced. In addition, the installation of the four-way rope retaining system 16 can be easily performed.

[0138] Figure 13 The detector 60 is an example of a rotation sensor. That is, the sensor unit 75 includes a roller 78. As another example, the sensor unit 75 may also include a camera. In this case, the measuring device 63 tracks the pattern on the surface 4c of the rope 4 based on the camera image, thereby measuring the relative displacement between the rope 4 and the retainer 30.

[0139] Implementation Method 7

[0140] Figure 14 This is a side view showing an example of the holding system 16 in embodiment 7. Figure 14 It is equivalent to Figure 6 The image. Figure 15 yes Figure 14 The cross-sectional view of the DD line is shown. Furthermore, aspects not specifically described in this embodiment are the same as in any of the examples disclosed in embodiments 1 to 6.

[0141] In addition to the connector 25, retainer 30, fixing member 50, and detector 60, the retaining system 16 also includes pulleys 79 and 80. Pulley 79 is rotatably mounted on fixing member 50 via support arm 81. Figure 14 and Figure 15 In the example shown, support arm 81 is disposed on block 52. Support arm 81 extends upward from block 52. Pulley 79 is disposed at the upper end of support arm 81. Pulley 79 is positioned above the fixing member 50.

[0142] The pulley 80 is rotatably mounted on the retainer 30 via the support block 82 and the support arm 83. The support block 82 is mounted on the support plate 34 of the housing 31. The support block 82 protrudes from the support plate 34. The support block 82 may also be mounted on the receiving member 36 or the receiving member 37. The support block 82 may also be mounted on the wedge 32 or the wedge 33. The support arm 83 is provided to extend downward from the end of the support block 82. The pulley 80 is located at the lower end of the support arm 83. The pulley 80 is positioned below the retainer 30.

[0143] The detector 60 includes a sensor unit 61, a rope-like member 84, a sensor unit 62, and a measuring device 63. The sensor unit 61, sensor unit 62, and measuring device 63 are the same as those disclosed in Embodiment 5. However, in… Figure 14 and Figure 15 The example shown differs from the example disclosed in Embodiment 5 in that the sensor unit 61 only has a component equivalent to the receiving member 74 and the sensor unit 61 is suspended by the rope-like member 84.

[0144] The rope-like member 84 is preferably made of steel wire. However, the rope-like member 84 is not limited to steel wire. One end of the rope-like member 84 is connected to the retainer 30 via a support block 85. The support block 85 is provided on the support plate 34 of the housing 31. The support block 85 protrudes from the support plate 34. The support block 85 may also be provided on the receiving member 36 or the receiving member 37. The support block 85 may also be provided on the wedge 32 or the wedge 33. The rope-like member 84 extends downward from the support block 85 and is wound around the pulley 79. The rope-like member 84, which folds back at the pulley 79, extends obliquely upward and is wound around the pulley 80. The rope-like member 84, which folds back at the pulley 80, extends downward, and the other end is connected to the sensor section 61.

[0145] The sensor section 62 is disposed on the block 51 of the fixing member 50. The sensor section 62 is positioned directly below the pulley 80. The portion of the rope-like member 84 extending upward from the sensor section 61 passes through the through hole 62a and is positioned along the Z-axis.

[0146] The measuring device 63 detects the change in position of sensor 62 relative to sensor 61 along the Z-axis. If detector 60 is a differential transformer type displacement sensor, then sensor 61 is the core. As another example, the measuring device 63 can also measure the conduction state between sensor 61 and sensor 62.

[0147] exist Figure 14 and Figure 15In the example shown, the rope-like member 84 of the suspended sensor section 61 is folded back by pulleys 79 and 80. Therefore, the displacement of the fixing member 50 relative to the holding member 30 can be amplified by the rope-like member 84, thereby improving the detection accuracy of the detector 60.

[0148] exist Figure 14 and Figure 15 In the example shown, one end of the rope-like member 84 is disposed on the retainer 30. As another example, one end of the rope-like member 84 may also be disposed on the fixing member 50. One end of the rope-like member 84 may also be disposed on the sensor section 62 fixed to the fixing member 50.

[0149] The following describes another example of using rope-like component 84.

[0150] Figure 16 This is a front view showing another example of the holding system 16 in embodiment 7. Figure 16 This represents an example of maintaining multiple ropes (4). Figure 16 The retaining system 16 shown includes a connector 25, a retainer 30, a fixing member 50, a detector 60, a pulley 79, and a pulley 80. The number of connectors 25, retainers 30, fixing members 50, pulleys 79, and pulleys 80 is the same as the number of ropes 4. That is, there is one connector 25, one retainer 30, one fixing member 50, one pulley 79, and one pulley 80 for each rope 4. There is only one detector 60.

[0151] Figure 16 An example of a retaining system 16 holding two ropes 4 is shown as the simplest example. (Regarding...) Figure 16 In the following description, elements related to rope 4 on the right are marked with "R" after the reference numerals. Elements related to rope 4 on the left are marked with "L" after the reference numerals. For example, retainer 30L retains rope 4L. Fixing member 50L is fixed to rope 4L directly below retainer 30L.

[0152] The detector 60 includes a sensor unit 61, a rope-like member 84, a sensor unit 62, and a measuring device 63. One end of the rope-like member 84 is connected to the retainer 30L via a support block 85L. The rope-like member 84 extends downward from the support block 85L and is wound around a pulley 79L.

[0153] A rope-like member 84 extends from pulley 79L along the Y-axis and is wound around pulley 79R. The rope-like member 84 extends obliquely upward from pulley 79R and is wound around pulley 80R. The rope-like member 84, which folds back at pulley 80R, extends downward, with one end connected to sensor section 61.

[0154] The sensor unit 62 is disposed on the block 51R of the fixing member 50R. The sensor unit 62 is positioned directly below the pulley 80R. The portion of the rope-like member 84 extending upward from the sensor unit 61 passes through the through hole 62a and is positioned along the Z-axis.

[0155] The measuring device 63 detects the position of the sensor unit 62 relative to the sensor unit 61 as it changes vertically along the Z-axis. Figure 16 In the example shown, the portion of the rope-like member 84 extending vertically from the support block 85L to the pulley 79L. Therefore, when the fixing member 50L moves downward relative to the retaining member 30L, the sensor section 61 moves upward relative to the sensor section 62. Conversely, when the fixing member 50L moves upward relative to the retaining member 30L, the sensor section 61 moves downward relative to the sensor section 62. Furthermore, the aforementioned portion of the rope-like member 84 is preferably arranged vertically.

[0156] Similarly, in Figure 16 In the example shown, the portion of the rope-like member 84 from the pulley 80R to the sensor section 61 extends vertically. Therefore, when the fixing member 50R moves downward relative to the retaining member 30R, the sensor section 61 moves upward relative to the sensor section 62. When the fixing member 50R moves upward relative to the retaining member 30R, the sensor section 61 moves downward relative to the sensor section 62.

[0157] That is, regardless of whether the fixing member 50L is displaced relative to the retaining member 30L in the direction along the Z-axis, or whether the fixing member 50R is displaced relative to the retaining member 30R in the direction along the Z-axis, the detector 60 can detect the abnormality. If it is... Figure 16 The example shown can detect and maintain related anomalies by using a single detector 60 on multiple ropes 4. Additionally, in Figure 16 In the example shown, the measuring device 63 can also measure the conduction state of the sensor unit 61 and the sensor unit 62.

[0158] exist Figure 16 In the example shown, one end of the rope-like member 84 is disposed on the retainer 30L. As another example, one end of the rope-like member 84 may also be disposed on the fixing member 50L. In this case, the rope-like member 84 extends from the pulley 80R along the Y-axis and is wound around the pulley 80L. The rope-like member 84, folded back on the pulley 80L, extends downwards, with one end connected to the fixing member 50L.

[0159] In addition, as mentioned above, Figure 16A simple example of the retaining system 16 holding two ropes 4 is shown. The retaining system 16 can also hold three or more ropes 4. For example, in the case where the car 1 is suspended by three ropes 4, retainers 30 and fixing members 50 are provided for each of the three ropes 4. The rope member 84 is stretched in such a way that, regardless of which of the three ropes 4, the fixing member 50 is displaced relative to the retainer 30 in a direction along the axis of that rope 4, and the position of the sensor part 62 relative to the sensor part 61 changes in a direction along the Z-axis.

[0160] For example, in Figure 16 A third set of retainers 30 and fixing members 50 is provided between retainers 30L and retainers 30R. In this case, such as Figure 16 As shown, the rope-like member 84 extends from the pulley 79L along the Y-axis and is successively wound around the central pulley 79, the central pulley 80, and the pulley 79R. The same applies when the holding system 16 holds four or more ropes 4.

[0161] Figure 17 This is a front view showing another example of the holding system 16 in embodiment 7. Figure 17 An example is shown where the rope 4 extends upward from the retainer 30. That is, in Figure 17 In the example shown, the "part extending from the retainer 30 toward the car 1 side" in rope 4 is the part that extends upward from the retainer 30.

[0162] Figure 17 The holding system 16 shown includes a connector 25, a holder 30, a fixing member 50, a detector 60, a pulley 79, and a pulley 86.

[0163] The fixing member 50 is positioned directly above the retaining member 30, adjacent to it. The pulley 79 is rotatably mounted on the fixing member 50 via a support arm 81. Figure 17 In the example shown, support arm 81 is disposed on block 52. Pulley 86 is rotatably disposed on fixing member 50 via support arm 81 and support arm 87. Pulley 79 and pulley 86 are positioned above fixing member 50.

[0164] The detector 60 includes a sensor unit 61, a rope-like member 84, a sensor unit 62, and a measuring device 63. The sensor unit 61, sensor unit 62, and measuring device 63 are... Figure 15 The examples published in China are the same.

[0165] One end of the rope-like member 84 is connected to the retainer 30 via the support block 85. The rope-like member 84 extends upward from the support block 85 and is wound around the pulley 79. The rope-like member 84 extends from the pulley 79 along the Y-axis and is wound around the pulley 86. The rope-like member 84, which folds back at the pulley 86, extends downward, and the other end is connected to the sensor section 61.

[0166] The sensor section 62 is disposed on the block 51 of the fixing member 50. The sensor section 62 is positioned directly below the pulley 86. The portion of the rope-like member 84 extending upward from the sensor section 61 passes through the through hole 62a and is positioned along the Z-axis.

[0167] The measuring device 63 detects the position of the sensor unit 62 relative to the sensor unit 61 as it changes vertically along the Z-axis. Figure 17 In the example shown, the rope-like member 84 of the suspension sensor unit 61 is folded back by pulleys 79 and 86. Therefore, the displacement of the fixing member 50 relative to the retaining member 30 can be detected by the rope-like member 84.

[0168] In embodiments 1 to 7, the retaining mechanism of the retainer 30 is described using the example of clamping the rope 4 by means of wedges 32 and 33. Hereinafter, examples of other retaining mechanisms that can be used for the retainer 30 will be described.

[0169] Figure 18 This is a front view showing another example of retainer 30. Figure 19 yes Figure 18 The cross-sectional view of the EE line shown. Figure 18 and Figure 19 The retainer 30 shown includes a plate 41, a plate 42 and a plurality of bolts 43.

[0170] A through hole 41a is formed in the upper part of the plate 41. A through hole 42a is formed in the upper part of the plate 42. The bolt 26 passes through the through holes 22a, 41a, and 42a. The retainer 30 is connected to the component 22 by fastening the nut 27 to the end of the bolt 26.

[0171] exist Figure 18 and Figure 19 In the example shown, rope 4 is positioned between plate 41 and plate 42. With rope 4 positioned between plate 41 and plate 42, plate 41 and plate 42 are fastened together using bolt 43, thereby securely holding rope 4 to retainer 30. Surface 41b of plate 41 contacts surface 4c of rope 4. Plate 41 is pressed against rope 4 by bolt 43. Similarly, surface 42b of plate 42 contacts surface 4d of rope 4. Plate 42 is pressed against rope 4 by bolt 43.

[0172] Figure 18 and Figure 19 The retainer 30 shown is Figures 5 to 7 Compared to the retainer 30 shown, it has fewer parts. Therefore, miniaturization and weight reduction of the retainer 30 are easier. Furthermore, in Figure 18 and Figure 19 In the shown retainer 30, the displacement of wedges 32 and 33 relative to the outer casing 31 need not be considered. In the examples shown in the various embodiments, the following can also be used... Figure 18 and Figure 19 The retainer 30 shown.

[0173] Figures 5 to 7 The retainer 30 shown and Figure 18 and Figure 19 The retaining members 30 shown all retain the rope 4 by clamping it from both sides. Wedges 32 and 33 are examples of components that contact the rope 4. Receiving members 36 and 37 are examples of components that press the contacting members onto the rope 4. The housing 31, which includes receiving members 36 and 37, can also be considered as the pressing member. Similarly, plates 41 and 42 are examples of components that contact the rope 4. Bolt 43 is an example of a component that presses the contacting member onto the rope 4.

[0174] In each embodiment, an example of a rectangular cross-section for the rope 4 is described. This is one example. The cross-section of the rope 4 can also be circular. Furthermore, metal materials such as steel wire can be used as the support member 18 for the rope 4. The rope 4 may also lack the covering member 19 and only have the support member 18.

[0175] In each embodiment, a preferred example of using the rope 4 in an elevator has been described. For example, as the lift of the elevator increases, the weight of the rope 4 increases. This increased weight of the rope 4 hinders the miniaturization and cost reduction of equipment such as the winch 7. A flat, ribbon-shaped rope 4 containing reinforcing fibers such as carbon fiber is suitable for achieving both lightweight and high strength. However, such a rope 4 cannot be bent at a very small curvature to avoid fiber buckling. Therefore, when using such a rope 4, it is not feasible to employ existing retaining mechanisms that form loops at the ends of the rope 4 and place wedges on the inner side of the loops to prevent detachment.

[0176] According to the retention system disclosed herein, anomalies related to the retention of rope 4 can be detected with high precision. Therefore, when using a flat, ribbon-shaped rope 4 containing reinforcing fibers, this retention system can be a particularly effective component as a system for retaining the end of rope 4.

[0177] Rope 4 is not limited to ropes used in elevators. Rope 4 can be any rope used to suspend objects. For example, rope 4 can also be a rope used in cranes.

[0178] Industrial utilization potential

[0179] The holding system disclosed herein can be applied to ropes used for suspending objects.

[0180] Explanation of reference numerals in the attached figures

[0181] 1. Car, 2. Counterweight, 3. Lifting Path, 4. Rope, 4a-4b Ends, 4c-4d Surfaces, 4e End, 5-6. Guide Rails, 7. Winch, 8. Drive Sheave, 9. Motor, 10. Brake, 11. Deflector Wheel, 12. Control Device, 13. Machine Room, 14. Car Room, 15. Car Frame, 16-17. Holding System, 18. Support Components, 19. Covering Components, 20. High-Strength Fiber, 21. Resin Base Material, 22. Components, 22a. Through Hole, 25. Connecting Components, 26. Bolts, 27. Nuts, 30. Retaining Components, 31. Shell, 31a. Space, 32-33. Wedges, 32a-33a Surfaces, 34-35. Support Plates, 34a-35a. Through Holes, 36-37. Supporting Components, 36a-37a Surfaces, 41- 42 Flat plate, 41a-42a through holes, 41b-42b surfaces, 43 Bolt, 50 Fastener, 51-52 Block, 53 Bolt, 60 Detector, 61-62 Sensor unit, 62a through hole, 63 Measuring device, 64 Support arm, 65 Shaft, 66 Core, 67-68 Support unit, 69 Linear sensor, 70-71 Wire, 72-73 Socket, 74 Receiving component, 75 Sensor unit, 76 Support block, 77 Support arm, 78 Roller, 79-80 Pulley, 81 Support arm, 82 Support block, 83 Support arm, Rope-like component, 85 Support block, 86 Pulley, 87 Support arm, 100 Processing circuit, 101 Processor, 102 Memory, 103 Dedicated hardware.

Claims

1. A holding system, wherein, This holding system has the following features: A retainer is used to hold the end of a rope used to suspend an object in such a way that a compressive force is applied and clamped in the thickness direction of the rope; A fastener, securely fixed to the portion of the rope that is under tension by suspending the object; as well as The detector detects the relative displacement of the fixing member with respect to the retaining member in the direction along the axis of the rope. The detector is supported by the retainer and the fixing member, and detects the slippage of the retainer relative to the rope.

2. The holding system according to claim 1, wherein, The retaining member includes: Contact member, in contact with the rope; and The receiving component supports the contact component. The detector is fixed to at least one of the contact member and the receiving member.

3. The holding system according to claim 1 or 2, wherein, The detector has the following features: A first sensor unit is disposed on the retaining member; A second sensor unit is disposed on the fixing member; and The measuring device detects the change in the position of the second sensor relative to the first sensor in the direction along the axis.

4. The holding system according to claim 3, wherein, When the fixing member moves away from the retaining member by a certain distance, the first sensor part comes into contact with the second sensor part, and the detector bears a portion of the force acting on the rope.

5. The holding system according to claim 1 or 2, wherein, The detector has the following features: A first support portion is disposed on the retaining member; A second support portion is provided on the fixing member; A linear sensor is disposed on the first support portion and the second support portion, and is arranged along the axis; as well as A measuring device for measuring the force acting on the linear sensor.

6. The holding system according to claim 1 or 2, wherein, The detector has the following features: A first support portion is disposed on the retaining member; A second support portion is provided on the fixing member; A conductor is disposed in the first support portion and the second support portion, and is arranged along the axis; as well as A measuring device is used to measure the conductivity state of the conductor.

7. The holding system according to claim 1 or 2, wherein, The retaining member includes: A wedge-shaped contact member contacts the rope; and The pressing component presses the contact component against the rope. The pressing member has a surface that approaches the rope as it approaches the fixing member.

8. The holding system according to claim 1 or 2, wherein, The retaining member includes: A wedge-shaped contact member contacts the rope; and The pressing component presses the contact component against the rope. The pressing member has a surface that approaches the rope as it approaches the fixing member. The detector is supported by the pressing member and the fixing member.

9. The holding system according to claim 8, wherein, The retaining system also includes a second detector supported on the contact member and the fixing member, which is used to detect relative displacement of the fixing member relative to the retaining member in a direction along the axis of the rope.

10. The holding system according to claim 1 or 2, wherein, One of the retainers or the fasteners is positioned directly above the other, adjacent to it.

11. A holding system, wherein, This holding system has the following features: A retainer, for holding the end of a rope used to suspend an object; and A detector, supported by the retainer, detects the relative displacement of the portion of the rope under tension due to the suspension of the object, relative to the retainer, in a direction along the axis of the rope. The detector measures the relative displacement between the tensioned portion and the retainer by means of a sensor portion comprising a roller in contact with the rope and disposed on the retainer.

12. The holding system according to any one of claims 1, 2, 4, 9, and 11, wherein, The rope has the following features: The supporting member has a flat cross-section and includes reinforcing fibers; and A covering element that covers the supporting member.

13. A holding system for suspending an object using multiple ropes, wherein, This holding system has the following features: First sensor section and second sensor section; A rope-like component is connected to the first sensor unit; and The measuring device detects the positional change of the second sensor unit relative to the first sensor unit. Each of the plurality of ropes includes: a retainer for holding the end of the rope; and a fastener, a portion of the rope extending from the retainer toward the object. The rope-like member is tensioned such that, regardless of which of the multiple ropes, the position of the second sensor relative to the first sensor changes when the fixing member is displaced relative to the retaining member in a direction along the axis of the rope.

14. The holding system according to any one of claims 1, 2, 4, 9, 11, and 13, wherein, The object is the elevator car that moves up and down in the elevator shaft.

15. An elevator device, the elevator device comprising: The car and counterweight move in the lifting path; The rope, suspending the car and the counterweight, is wound around the drive winch pulley; and A retainer holds the end of the rope used to suspend the object including the car or the counterweight in a manner that applies a compressive force in the thickness direction of the rope and clamps it in place. in, The elevator device includes: A fastener, located directly below the retainer, is disposed on the portion extending from the retainer toward the car and is securely fixed to the portion of the rope that is under tension by suspending the object; as well as The detector detects the relative displacement of the fixing member attached to the rope relative to the retainer in the direction along the axis of the rope. The retaining member has a wedge-shaped contact member that contacts the rope. The detector is supported by the contact member and the fixing member, and detects the slippage of the contact member with the rope.

16. The elevator device according to claim 15, wherein, One of the retainers or the fasteners is positioned directly above the other, adjacent to it.

17. An elevator device, wherein, The elevator system has the following features: The car and counterweight move in the lifting path; The rope, suspending the car and the counterweight, is wound around the drive winch pulley; The retainer holds the end of the rope used to suspend the object including the car or the counterweight in such a way that a compressive force is applied in the thickness direction of the rope and it is clamped in place. A fastener, located directly below the retainer, is disposed on the portion extending from the retainer toward the car and is securely fixed to the portion of the rope that is under tension by suspending the object; as well as The detector detects the relative displacement of the fixing member with respect to the retaining member in the direction along the axis of the rope. The rope has a support member that supports the load and a covering member that covers the support member. The detector is supported by the retainer and the fixing member, and detects the sliding of the retainer against the rope and the creep deformation of the covering member.

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