JP2011051752A - Rope inspection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rope inspection device easily, quickly and accurately detecting a slight deformation of a rope. <P>SOLUTION: The rope inspection device includes: a first plate member 5 having a face 4 that faces five ropes 1 having a reference diameter, and five juxtaposed recessed grooves 3 on the face 4, having a half-cylindrical surface of a larger diameter than the reference diameter of the individual ropes 1; a second plate member 6 including a face 13 holding five ropes in cooperation with the face 4 of the plate member 5, and five recessed grooves 18 juxtaposed on the face 13, and having a half-cylindrical surface of a larger diameter than the reference diameter; and fastening members 7 and 8 fastening the plate members 5 and 6, with the face 4 of the plate member 5 and the face 13 of the plate member 6 butted against each other. The fastening members 7 and 8 align and fasten the five recessed grooves 3 of the face 4 of the plate member 5, and the five recessed grooves 18 of the face 13 of the plate member 6. Five cylindrical spaces for respectively inserting the ropes 1 are formed by groove surfaces, formed by a pair of the opposing recessed grooves 3 and 18. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a rope inspection jig.

  The elevator car is supported by a wire rope. The wire rope has a cord and a plurality of strands provided around the cord, and these strands are formed by twisting a plurality of strands. The strands are subject to fatigue due to bending and extension when the strands pass through the sheave. Wear due to relative sliding between the strands, wear of the outer rope layer due to contact between the strands and the groove wall surface of the sheave, corrosion due to contact with the atmosphere, and the like also occur. In the entire wire rope, when tension is applied to the wire rope, a radial compression force is applied from the strand to the core side, the diameter of the rope is reduced, and the twisted strands are stretched. Abnormal bending of the rope during installation (kinks, bending at the angle of other products, etc.) or abnormalities in the rope manufacturing process may cause the diameter to collapse or expand. The diameter of a part of the rope may expand at the joints of the heart rope. Use of the wire rope over time causes breakage of the strands, wear on the outer periphery of the wire rope, damage due to kinks, and the like.

  In the work for maintenance and management of the elevator, the presence or absence of these disconnections, wear, kinks, etc. is inspected. The outermost diameter of the rope is measured using a caliper or the like, and the degree of damage is determined by comparing the measured value with a predetermined reference value. In the inspection, a rope deformation detector (rope inspection jig) for detecting deformation (deformation) of the elevator wire rope is used.

  FIG. 5 is an overall configuration diagram of a conventional machine room-less elevator. As shown in FIG. 5, the machine room-less elevator 50 includes a guide rail 51 provided in the hoistway, a car 52 that moves up and down along the guide rail 51, and a hoisting machine provided on the guide rail 51. 53 and a counterweight 54 connected to the car 52 via a main rope 1 made of wire. The main rope 1 is stretched between a car 52, a hoisting machine 53 and a counterweight 54.

  Conventionally, when detecting the presence or absence of deformation of an elevator wire rope, an operator 55 rides on the roof of a car 52 from a floor landing and operates an operating device in a work scaffold area provided with a safety fence at the edge. Then, the elevator operation mode is switched to the inspection operation mode. The control device raises the car 52 to the top in the hoistway at a low speed by the inspection operation, and stops the car 52. The worker 55 inspects the main rope within the inspectable range such as visual inspection, palpation, and measurement of the outermost diameter of the main rope 1 using calipers. The inspectable range is an inspected range in the full length direction of the main rope 1 in which the operator 55 can perform palpation and measurement with a caliper in a state where the arm 55 is standing in the work scaffolding region and arms are extended.

  After inspecting the main rope 1 within the inspectable range at the top, the worker 55 lowers the car 52 at a low speed while finely adjusting the speed. The worker 55 stops the car 52 at a height position facing the inspection target range of the main rope 1 below the inspection target range of the main rope 1 that has been inspected, and moves the main rope 1 in the next inspection target range. inspect. The worker repeats such work until the car 52 reaches the lowermost part of the hoistway.

  When the elevator has a machine room, an operator performs inspections such as visual inspection, palpation, and measurement of the outer diameter of the rope in the machine room.

  Conventionally, a rope gauge that detects the deformation of the main rope in a short time has been proposed (see Patent Document 1). The rope gauge described in Patent Document 1 is provided with a notch portion into which the rope is inserted into the rope gauge body.

  FIG. 6 is a view of a conventional rope gauge as viewed from above. FIG. 6 shows a cross-sectional structure in which a rope is inserted into three stepped notches having different widths. The portions 57 and 58 of the rope gauge main body 56 clamp the rope 59, and the deformation of the rope 59 is detected by the distance between these two end faces. In this state, the rope gauge body 56 is moved up and down along the rope 59 to check whether or not the rope gauge body 56 is caught. When the rope gauge 56 is caught, it is determined that the portion of the rope 59 has been deformed. When the rope gauge 56 is not caught, the insertion direction is shifted by 90 degrees with respect to the same rope 59 portion, the rope 59 is inserted again between the portions 57 and 58, and the rope gauge body 56 is moved up and down along the rope 59. move. After the inspection that the rope 59 has not been deformed, the car 52 is lowered at a low speed, and the operation of detecting the deformation of the rope is repeated in the same manner as the above method for the range of the inspection target of the next rope 59. .

JP 2004-333474 A

  However, in deformation detection methods such as visual inspection, palpation, and measurement using calipers, it takes a very long time to detect a slight deformation of the main rope. In visual inspection, when a long wire rope is inspected, it takes a lot of work time. In palpation, if the wire of the main rope is broken, there is a risk of injury to the fingers.

  Further, in the above-described prior art, since the distance between the respective end faces of the two long portions 57 and 58 is detected as a basic measure, when trying to accurately detect the presence or absence of deformation of the rope 59, It is necessary to insert the rope gauge body 56 into the same portion of the rope 59 and change the direction of insertion to move the rope gauge body 56 up and down several times. Since the rope gauge main body 56 is moved up and down in the longitudinal direction of the rope 59, the inspection work takes time.

  The present invention has been made in consideration of such points, and an object thereof is to provide a rope inspection jig capable of easily and quickly detecting even a slight deformation of a rope.

  In order to solve such a problem, according to an aspect of the present invention, a surface facing a plurality of ropes having a reference diameter is provided, and each of the surfaces has a half diameter larger than the reference diameter of the ropes. A first plate member provided with a plurality of concave grooves having a cylindrical surface; and a surface for sandwiching the plurality of ropes in a pair with the surface of the first plate member. A second plate member having a plurality of concave grooves having a semi-cylindrical surface having a diameter larger than the diameter, the surface of the first plate member, and the surface of the second plate member are abutted to each other. A fastening member that fastens the plate member and the second plate member, and the fastening member positions a plurality of concave grooves on the surface of the first plate member and a plurality of concave grooves on the surface of the second plate member, respectively. A plurality of ropes are inserted through the groove surfaces of a pair of opposed concave grooves. Rope inspection jig and a space of the tubular is formed is provided.

  Further, according to another aspect of the present invention, the first plate member having a surface facing a plurality of ropes having a reference diameter, and the plurality of the first plate member embedded in parallel with the surface of the first plate member, A plurality of first semi-cylindrical bodies having a semi-cylindrical shape having an inner diameter larger than the reference diameter of the rope, each semi-cylindrical surface facing the ropes, and the surface of the first plate member; A second plate member having a surface sandwiching the plurality of ropes in pairs, and a second plate member embedded in parallel with the surface of the second plate member, and paired with the plurality of first semi-cylindrical bodies. A plurality of second semi-cylindrical bodies having a semi-cylindrical shape having an inner diameter larger than the reference diameter of the plurality of ropes, each semi-cylindrical surface facing the ropes, and the first plate member The first plate member and the second plate member are joined by abutting the surface of the second plate member and the surface of the second plate member. A fastening member for binding, and each fastening member has a peripheral edge of the semi-cylindrical surface of the plurality of first semi-cylindrical bodies and a peripheral edge of the semi-cylindrical surface of the plurality of second semi-cylindrical bodies, respectively. A plurality of cylindrical spaces through which each rope is inserted are formed by combining the positions of the first and second semi-cylindrical bodies that are fastened together and aligned with the semi-cylindrical surfaces of the second semi-cylindrical bodies. A rope inspection jig characterized by the above is provided.

  According to the present invention, a slight deformation of a rope can be accurately and easily detected.

(A) is a front view of the rope inspection jig which concerns on the 1st Embodiment of this invention, (b) is a side view of the rope detection jig. (A) is a top view of the rope inspection jig which concerns on the 2nd Embodiment of this invention, (b) is a front view of the rope inspection jig. (A) is a top view of the rope inspection jig which concerns on the 3rd Embodiment of this invention, (b) is a front view of the rope inspection jig. It is the longitudinal cross-sectional view of the semi-cylindrical body which looked at the opposing surface from the surface of the 2nd board | plate material. It is a whole block diagram of the conventional elevator without a machine room. It is the figure which looked at the conventional rope gauge from the upper part.

  Hereinafter, a rope inspection jig according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. In the drawings, the same portions are denoted by the same reference numerals, and redundant description is omitted.

(First embodiment)
The rope inspection jig according to the first embodiment of the present invention is a rope deformation detector that detects deformation of the main rope 1 (rope) of the rope type elevator shown in FIG. A plurality of, for example, five main ropes 1 hang down from the hoisting machine 53 of FIG. 5, and an operator 55 standing on the car roof attaches the rope deformation detector to the main rope 1 to inspect the main rope 1. Like to do.

  FIG. 1A is a top view of the rope deformation detector. In the figure, a cross section of the main ropes 1 when the five main ropes 1 are cut along a plane orthogonal to the respective rope length directions is shown. FIG.1 (b) is a front view of the rope deformation | transformation detection tool 2, and the rope deformation | transformation detection tool 2 seen from the arrow A direction of Fig.1 (a) is shown. The same reference numerals in FIG. 1A and FIG. 1B denote the same elements. FIG. 1B shows an example of a state in which a fastening tool such as bolts has been removed.

  The rope deformation detector 2 includes two detection plates 5 (first plate members) and detection plates 6 provided with five concave grooves 3 for inserting the five main ropes 1 on the bottom surfaces 4 and 13 respectively. (Second plate member) and bolts 7 and 8 (fastening members) for fastening the detection plates 5 and 6 in a state where the bottom surfaces 4 and 13 of the detection plates 5 and 6 are abutted with each other.

  The main rope 1 whose cross section is shown has, for example, a core rope formed by twisting or knitting fiber or metal core rope, and a steel wire as a strand is twisted around the core rope. 6 or 8 strands are arranged. Each main rope 1 has a determined reference diameter.

  The detection plate 5 includes a bottom surface 4 facing the five main ropes 1, a top surface 9 facing the bottom surface 4, an upper surface 10 facing the top of the hoistway, a lower side (not shown) facing the hoistway bottom, and hoistway walls. And left and right side surfaces 11 and 12 facing each other. Five concave grooves 3 each having a semi-cylindrical surface larger than the reference diameter of the main rope 1 are juxtaposed on the bottom surface 4.

  The detection plate 6 has a bottom surface 13 facing each main rope 1, a top surface 14 facing the bottom surface 13, an upper surface 15 facing the top of the hoistway, a lower side (not shown) facing the bottom of the hoistway, and faces the hoistway walls. Left and right side surfaces 16 and 17 are provided. The bottom surface 13 is paired with the bottom surface 4 of the detection plate 5 and sandwiches the five main ropes 1. On the bottom surface 13, five concave grooves 18 each having a semi-cylindrical surface larger than the reference diameter of the main rope 1 are juxtaposed.

  Further, a protruding portion 19 that protrudes toward the detection plate 6 in the normal direction of the bottom surface 4 is provided at one end portion in the direction in which the five concave grooves 3 are arranged side by side on the bottom surface 4 of the detection plate 5. . Each position of the groove 3 of the detection plate 5 and the groove 18 of the detection plate 6 is adjusted by bringing the detection plate 6 into contact with the protruding portion 19.

  Bolts 7 and 8 are fastening members that abut the bottom surface 4 of the detection plate 5 and the bottom surface 13 of the detection plate 6 to fasten the detection plate 5 and the detection plate 6. The bolts 7 are screwed into the bolts 22 inserted into the through holes 20 and 21 formed in the detection plates 5 and 6, respectively, and formed with threads on both ends, and the threads on both ends of the bolt 22. It has two wing nuts 23. The bolts 8 are screwed into the bolts 26 that are inserted into the through holes 24 and 25 formed in the detection plates 5 and 6, respectively, and are threaded at both ends, and the threads at both ends of the bolt 26. It has two wing nuts 27 and a double nut 28 (separation preventing member) for sandwiching the plate-shaped detection plates 5 and 6 having a thickness and fixing the bottom surfaces 4 and 13 to each other.

  Bolts 7 and 8 fasten the five concave grooves 3 on the bottom surface 4 of the detection plate 5 and the five concave grooves 18 on the bottom surface 13 of the detection plate 6 with their positions aligned, and are opposed to each other. Three cylindrical spaces 29 into which the main ropes 1 are inserted are formed by the groove surfaces between the three and the eighteen.

  Further, five concave grooves 30 each having a semi-cylindrical surface having a diameter larger than the reference diameter of the five main ropes 1 are juxtaposed on the upper surface 9 of the detection plate 5. On the upper surface 14 of one detection plate 6, five concave grooves 31 each having a semi-cylindrical surface having a diameter larger than the reference diameter are arranged side by side. The curvature of the semicylindrical surface of each concave groove 30 is equal to the curvature of the semicylindrical surface of each concave groove 31. These detection plates 5 and 6 can be used in a state where the detection plates 5 and 6 are turned upside down and the upper surfaces 9 and 14 are butted. A space having a larger diameter than the diameter of the space 29 can be formed by fastening the semicylindrical surface of each concave groove 30 and the semicylindrical surface of each concave groove 31 together at the periphery.

  Further, when the rope deformation detection tool 2 of FIG. 1 is put in a plane, that is, in a plane including the upper surface 10 of the detection plate 5 and the upper surface 15 of the detection plate 6, the rope deformation detection tool 2 is connected to the detection plates 5 and 6. Five notches are provided in a straight line on each of the opposite sides. These notches are semicircular notches having a diameter slightly larger than the diameter of the main rope 1 made of wire for which deformation is to be detected. The rope deformation detector 2 is passed through holes in the thickness direction of the two detection plates 5 and 6 and the detection plates 5 and 6, and bolts for fixing the two detection plates 5 and 6. It is comprised by.

  One detection plate 5 has a protruding portion 19 at the end of the detection plate 5 at a position where the notch of the semicircle is exactly aligned when the edge of the other detection plate 6 is brought into contact. Is formed. Notches having a diameter different from the diameter of these notches are also formed on the long sides opposite to the long sides where the notches of the detection plates 5 and 6 are formed. The distance between the diameter centers of the two types of notches having different diameters is the same as the distance between the grooves of the main sheave attached to the hoisting machine 53 around which the main rope 1 is wound. Yes. The diameter of the notch is selected and formed so as to have a dimension substantially equal to the maximum manufacturing tolerance of the rope diameter of the main rope 1. One of the two bolts 22 and 26 has a long bolt length, and a double nut 28 is screwed to the end.

  In the deformation inspection method for the main rope 1 using the rope deformation detector 2 according to the present embodiment having such a configuration, an operator gets on the car 52 and raises the car 52 to the top of the hoistway at a low speed. The work is started with the car 52 stopped and standing on the roof of the car 52.

  Explaining how to use the rope deformation detector 2, as shown in FIG. 1, the worker 55 passes the main rope 1 of the elevator through the concave grooves 3 and 18 between the two detection plates 5 and 6. The pair of semi-cylindrical surfaces are aligned so as to be a true cylindrical surface, and the detection plates 5 and 6 are fixed by bolts 7 and 8. In this state, an operator detects the deformation of the main rope 1 by holding the both ends of the rope deformation detection tool 2 and moving the entire rope deformation detection tool 2 up and down in the longitudinal direction of the main rope 1. An operator confirms whether or not the rope deformation detection tool 2 is caught, and when the rope deformation detection tool 2 is caught, it is determined that the portion of the main rope 1 has been deformed.

  Inspections are made for broken wires, wear on the outer periphery of the main rope 1, or damage to the kink caused by twisting of the portion where the main rope 1 is folded by the sheave. Sparks may adhere to the outer periphery of the rope due to welding or the like during the manufacture of the rope, and the bulge may be partially detected.

  When deformation such as kinking or crushing occurs in the main rope 1, a part of the rope diameter of the main rope 1 increases. When the rope deformed portion passes through the cylindrical portion formed by the concave grooves 3 and 18 of the detection plates 5 and 6, the rope is caught or the resistance increases when the rope deformed detector 2 passes, so that the deformation is deformed. It can be easily detected.

  The detection plates 5 and 6 are not thin plates but have a thickness. Although it is difficult to detect this deformation of the main rope 1 that has been deformed beyond the maximum rope diameter tolerance using a thin plate, since the detection plates 5 and 6 are both thick, Compared to, it is easier to detect rope deformation.

  The protruding portion 19 is formed at a position where two opposing semi-cylindrical surfaces are just aligned when the detection plate 6 is brought into contact with the protruding portion 19. After the detection plate 6 is brought into contact with the protruding portion 19 during the operation of detecting the rope deformation, the detection plates 5 and 6 are fixed by using bolts 7 and 8 so that the combined concave grooves 3 and 18 are connected to each other. Can be easily formed into a true cylinder, and workability can be improved. The joint surface between the detection plates 5 and 6 has a stepped shape so that a semi-cylindrical space 29 can be easily formed.

  In addition, by forming the concave grooves 30 and 31 in advance for other rope diameters, two elevators having different rope diameters can be inspected. There is no need to prepare two types of rope deformation detectors 2 for each rope diameter, which is efficient.

  Moreover, since the long bolt is used for the bolts 8 and the double nut 28 is provided in the edge part of this bolt, the bolts 8 are the main ropes 1 to the two detection plates 5 and 6. These detection plates 5 and 6 can work so as not to be completely separated when, for example, is inserted. By preventing the detection plates 5 and 6 from being separated, workability at the time of rope insertion is improved. A wing nut is used as a fixing nut, and consideration is given so that an operator can fix the detection plates 5 and 6 without using a tool or the like.

  Therefore, according to the rope deformation detection tool 2, it is possible to detect the deformation of the rope in a short time in the operation of detecting the deformation of the main rope 1 as compared with the case of measurement by visual observation, palpation, calipers or the like. It becomes like this.

  Conventionally, a rope palpation or the like has been performed using a rope gauge provided with a notch. However, according to the rope deformation detection tool 2, compared to the case where a rope is palpated using a conventional example, finger injury is reduced. Can be prevented. In contrast to the conventional rope gauge, the rope deformation detector 2 can inspect a plurality of main ropes 1 at the same time, and can detect the circumferential direction on the outer peripheral surface of these main ropes 1 at a time, so that a detection omission is detected. It can be prevented from occurring, and the rope deformation can be detected in a shorter time. The workability of attaching the rope deformation detector 2 is good and the service life is long. Since the two plate-like members are connected, there is no possibility of dropping one of the detection plates 5 and 6.

  That is, the rope inspection jig according to the present embodiment can be detected easily and quickly, and a slight deformation of the rope can be accurately detected. Compared with the inspection method when using visual inspection, palpation, calipers, etc., it is not performed by an abnormality detection method based on the operator's touch, but the rope deformation detector 2 and the main rope 1 are physically brought into contact with each other. Therefore, a constant detection accuracy can be maintained regardless of the operator's sense. By using a material with high hardness for the rope contact portion, it is possible to continue using the same rope deformation detector 2 for a long time without causing a decrease in detection accuracy due to wear.

(Second Embodiment)
In order to prevent the two detection plates 5 and 6 from being separated, the fastening member can be formed of a member different from the bolt. The rope inspection jig according to the second embodiment of the present invention is also a rope deformation detection tool that detects deformation of the main rope 1 of the rope type elevator.

  FIG. 2A is a top view of the rope inspection jig according to the present embodiment. FIG. 2B is a front view of the rope inspection jig, and shows the rope inspection jig viewed from the direction of arrow B in FIG. The same reference numerals in FIG. 2A and FIG. 2B denote the same elements. The above-mentioned symbols represent the same elements. FIG. 2B shows an example of a state in which the fastener has been removed.

  The rope deformation detector 2A has a detection plate 5A (first plate member), a detection plate 6A (second plate member), a bottom surface 4 of the detection plate 5A, and a bottom surface 13 of the detection plate 6A in a state of abutting each other. , 6A are provided with a hinge 32, a hook portion 33, and a locking portion 34. The hinge 32, the hook part 33, and the locking part 34 function together as a fastening member. The hinge 32 has a pair of plate-like attachment pieces rotatably attached via a pivot. One attachment piece is attached to the side surface 12 of the detection plate 5A so that the pivot is parallel to the rope length direction, and the other attachment piece is attached to the side surface 17 of the detection plate 6A. A locking portion 34 provided on the other side surface 11 of the detection plate 5A is a member for hooking the hook portion 33. The hook portion 33 is provided on the side surface 16 of the detection plate 6A.

  By the hinge 32, the two detection plates 5A and 6A can be freely opened and closed around the pivot axis. The hinge 32 connects the detection plates 5A and 6A without separating them. The hook portion 33 can be easily engaged and disengaged without using a tool or the like. The hook portion 33 can attract the detection plates 5A and 6A and fix them, thereby improving workability.

  Further, through holes 35 and 36 parallel to the rope length direction are provided at the end on the side surface 11 side of the detection plate 5A and the end on the side surface 16 side of the detection plate 6A, respectively. These through holes 35 and 36 are for passing a string or the like to prevent the rope deformation detector 2A from falling.

  According to the rope inspection jig according to this embodiment of the present invention, since the main rope 1 is not touched with a finger, the finger is not injured, and unlike visual observation, the deformation is not overlooked. It is possible to simultaneously detect all three main ropes 1 along each rope circumferential direction, and to detect deformation in a short time. The rope deformation detection tool 2A has an assembly structure in which the two detection plates 5A and 6A are not separated, and this makes it easy to perform centering operations such as installing guide rails in the hoistway. It becomes possible to improve the sex.

(Third embodiment)
In the first embodiment and the second embodiment, the concave grooves 3 and 18 are recessed in the bottom surfaces 4 and 13 to form a semi-cylindrical surface. A semi-cylindrical surface can be formed by embedding a semi-cylindrical body formed by dividing one pipe into vertical sections. The rope inspection jig according to the third embodiment of the present invention is also a rope deformation detector that detects deformation of the main rope 1 of the rope type elevator.

  FIG. 3A is a top view of the rope inspection jig according to the present embodiment. FIG. 3B is a front view of the rope inspection jig, and shows the rope inspection jig viewed from the direction of arrow C in FIG. The same reference numerals in FIG. 3A and FIG. 3B denote the same elements. The above-mentioned symbols represent the same elements. FIG. 3B shows an example in which the fastener is removed.

  The rope deformation detection tool 2B is configured such that the detection plate 5B (first plate member), the detection plate 6B (second plate member), the bottom surface 4 of the detection plate 5B, and the bottom surface 13 of the detection plate 6B face each other. , 6B for fastening bolts 7 and 8 (fastening members), five semi-cylindrical bodies 37 (first semi-cylindrical bodies) embedded in parallel to the bottom surface 4 of the detection plate 5B, and detection plates 6B, respectively. 5 half-cylinders 38 (second half-cylinders) that are buried in parallel with the bottom surface 13 of the first and second half-cylinders 37 and are paired with these half-cylinders 37. 1 differs from the configuration of the example of FIG. 1 in that semi-cylindrical bodies 37 and 38 having shapes obtained by vertically dividing the pipes in place of the concave grooves 3 and 18 of FIG. 1 are provided on the detection plates 5B and 6B, respectively. This is the point. The usage of the rope deformation detector 2B is the same as the example of the first embodiment.

  The five semi-cylindrical bodies 37 have an inner diameter larger than the reference diameter of the three main ropes 1, and each semi-cylindrical surface faces the main ropes 1. The five semi-cylindrical bodies 38 also have an inner diameter larger than the reference diameter of the three main ropes 1, and each semi-cylindrical surface faces the main rope 1. The bolts 7 and 8 fasten the peripheral edges of the semi-cylindrical surface of the semi-cylindrical body 37 and the peripheral edges of the semi-cylindrical surface of the semi-cylindrical body 38 with their positions aligned. In the fastened state, the semi-cylindrical surfaces of the pair of opposing semi-cylindrical body 37 and semi-cylindrical body 38 are combined to form five cylindrical spaces 39 through which the main ropes 1 are inserted. It has become.

  In the deformation inspection method of the main rope 1 using the rope deformation detector 2B according to the present embodiment having such a configuration, the worker uses the three main ropes 1 and the half of each semi-cylindrical body 37 of the detection plate 5B. The detection plates 5B and 6B are aligned so that the outer peripheral surfaces of the main ropes 1 exposed to the cylindrical surfaces are covered with the semi-cylindrical surfaces of the semi-cylindrical bodies 38 of the detection plate 6B. . The detection plates 5B and 6B are fixed by bolts 7 and 8. In this state, the worker holds the both ends of the rope deformation detector 2B and moves it up and down. An operator checks whether or not the rope deformation detection tool 2B is caught. If the rope deformation detection tool 2B is caught, it is determined that the part of the main rope 1 has been deformed.

  Further, FIG. 4 shows the state of the main rope 1 when the rope bent portion enters the space surrounded by the semicylindrical surfaces of the semicylindrical bodies 37 and 38. FIG. 4 is a longitudinal sectional view of the semi-cylindrical body 37 as seen from the bottom surface 4 to the top surface 9 of the detection plate 5B. Since the bent portion 40 of the main rope 1 contacts the inner wall of the semi-cylindrical body 37, the bent portion 40 is easily detected.

  According to the rope detection jig according to this embodiment of the present invention, it becomes possible to detect the deformation of the rope in the long semi-cylindrical body 37. Of the total length of the main rope 1, it is possible not only to detect a portion where the rope diameter is thick, but also to detect the bent portion 40 when the main rope 1 is bent. Thus, the detection accuracy can be further improved with a simple configuration.

(Fourth embodiment)
When performing the inspection work using the rope detection jig according to the embodiment of the present invention, the rope detection jig is not brought into contact with the rope with a large pressure. It is used in a state where the rope detection jig moves in contact with the rope. For the rope side, the contact is only once, but since this rope detection jig is used repeatedly for work, the portion of the rope detection jig that comes into contact with the main rope 1 is gradually worn out. Can be considered. Since the groove surfaces of the concave grooves 3 and 18 in the first embodiment and the second embodiment and the inner walls of the semi-cylindrical bodies 37 and 38 in the third embodiment are considered to be worn, In the rope detection jig according to the fourth embodiment, the groove surface and the inner wall are covered with a highly advanced material.

  The hardness of a wire rope usually used in an elevator is about HV 365 to 450, and a rope having a hardness higher than that of a general steel material such as SS400 is used. The groove surfaces of the concave grooves 3 and 18 in the first embodiment and the second embodiment and the inner walls of the semi-cylindrical bodies 37 and 38 in the third embodiment are both about HV400 or higher than HV400. It is possible to use a material having a high hardness. Alternatively, the material used for the concave grooves 3 and 18 and the material used for the semi-cylindrical bodies 37 and 38 may be subjected to surface hardening treatment such as induction hardening or kiln treatment.

  Use of a material having high hardness or surface hardening treatment is effective in extending the wear or life of the rope deformation detectors 2, 2A, 2B.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage.

  In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  DESCRIPTION OF SYMBOLS 1 ... Main rope (rope), 2, 2A, 2B ... Rope deformation detector, 3, 18, 30, 31 ... Groove, 4, 13 ... Bottom surface, 5, 5A, 5B ... Detection plate (first plate) 6, 6A, 6B ... detection plate (second plate member), 7, 8 ... bolts (fastening member), 9, 14 ... upper surface, 10, 15 ... upper side surface, 11, 12, 16, 17 ... side surface, DESCRIPTION OF SYMBOLS 19 ... Projection part, 20, 21, 24, 25, 35, 36 ... Through-hole, 22, 26 ... Bolt, 23, 27 ... Wing nut, 28 ... Double nut (separation preventing member), 29, 39 ... Space, 32 ... Hinge, 33 ... Hook part, 34 ... Locking part, 37, 38 ... Semi-cylindrical body, 40 ... Bending part, 50 ... Elevator without machine room, 51 ... Guide rail, 52 ... Car, 53 ... Hoisting machine, 54 ... Balanced weight, 55 ... Worker.

Claims (8)

A first plate member having a surface facing a plurality of ropes having a reference diameter, and a plurality of concave grooves each having a semi-cylindrical surface having a diameter larger than the reference diameter of each of the ropes on the surface;
A plurality of concave grooves each having a semi-cylindrical surface having a diameter larger than the reference diameter are provided in parallel on the surface, the surface having a pair of the plurality of ropes sandwiched with the surface of the first plate member. The second plate material,
A fastening member that abuts the surface of the first plate member and the surface of the second plate member to fasten the first plate member and the second plate member;
The fastening member fastens the plurality of concave grooves on the surface of the first plate member and the plurality of concave grooves on the surface of the second plate member with their positions aligned, and the groove surfaces of the pair of opposing concave grooves A rope inspection jig characterized in that a plurality of cylindrical spaces through which the respective ropes are inserted are formed.   A protrusion projecting in the normal direction of the surface is provided on one end of the plurality of grooves on the surface of the first plate, and the second plate is brought into contact with the protrusion. The rope inspection jig according to claim 1, wherein the positions of the concave grooves of the first plate member and the second plate member are aligned. The first plate member has a facing surface parallel to the surface of the first plate member, and a plurality of concave grooves each having a semi-cylindrical surface larger than the reference diameter of the plurality of ropes on the facing surface. Side by side,
The second plate has an opposing surface parallel to the surface of the second plate, and a plurality of concave grooves each having a semi-cylindrical surface having a diameter larger than the reference diameter are arranged in parallel on the opposing surface. The rope inspection jig according to claim 1, wherein: A first plate member having a surface facing a plurality of ropes having a reference diameter;
A plurality of semi-cylindrical shapes embedded in parallel to the surface of the first plate member and having an inner diameter larger than the reference diameter of the plurality of ropes, each semi-cylindrical surface facing the ropes. A first semi-cylindrical body of
A second plate member having a surface that sandwiches the plurality of ropes in pairs with the surface of the first plate member;
A semi-cylindrical shape that is embedded in parallel with the surface of the second plate member, forms a pair with the plurality of first semi-cylindrical bodies, and has an inner diameter larger than the reference diameter of the plurality of ropes. A plurality of second semi-cylindrical bodies with each semi-cylindrical surface directed to these ropes;
A fastening member that abuts the surface of the first plate member and the surface of the second plate member to fasten the first plate member and the second plate member;
The fastening member fastens the respective peripheral edges of the semi-cylindrical surfaces of the plurality of first semi-cylindrical bodies and the peripheral edges of the semi-cylindrical surfaces of the plurality of second semi-cylindrical bodies in alignment with each other, and faces each other. A rope inspection characterized in that a plurality of cylindrical spaces through which the respective ropes are inserted are formed by combining the semicylindrical surfaces of the pair of the first semicylindrical body and the second semicylindrical body. jig.   Protruding portions projecting in the normal direction of the surface are provided at one end in the embedding direction of the plurality of first semi-cylindrical bodies on the surface of the first plate material, and the second plate material is disposed on the projecting portion. The rope inspection jig according to claim 4, wherein the positions of the first and second semi-cylindrical bodies are brought into contact with each other to match the positions of the semi-cylindrical surfaces. The first plate member has an opposite surface parallel to the surface of the first plate member, and each of the opposite surfaces has a diameter larger than the reference diameter and a diameter different from the diameter of the semi-cylindrical surface. A plurality of semi-cylindrical bodies having a semi-cylindrical shape having a semi-cylindrical surface are embedded,
The second plate member has an opposite surface parallel to the surface of the second plate member, and each of the opposite surfaces has a diameter larger than the reference diameter and a diameter different from the diameter of the semi-cylindrical surface. The rope inspection jig according to claim 4, wherein a plurality of semi-cylindrical bodies having a semi-cylindrical shape having a semi-cylindrical surface are embedded.   2. A separation preventing member that clamps the first plate member and the second plate member and fixes the surfaces together when each rope is inserted into each cylindrical space is provided. The rope inspection jig according to any one of 6.   The rope inspection jig according to any one of claims 1 to 7, wherein a portion having contact with the plurality of ropes is made of a high hardness material.

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