JP2008056385A - Rope marking device of elevator and its method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mark up the abnormal part of a rope with direct spraying of paint from a paint spray device on the basis of an abnormal part detecting signal from a rope abnormality detector for an elevator. <P>SOLUTION: This rope marking device of the elevator has the rope abnormality detector 6 detecting the abnormal part caused by a partial breakage of a strand of copper wire composing a rope 4 towing a car 3, an abnormal part detecting signal receiving means receiving the abnormal part detecting signal from the rope abnormality detector 6, the paint spray device 7 marking up the abnormal part of the rope 4 by spraying paint thereto, and a paint spray control means controlling paint spray by the paint spray device 7 by receiving the abnormal part detecting signal from the abnormal part detecting signal receiving means. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rope marking device and a rope marking method for marking an abnormal portion of an elevator rope.

  In order to perform preventive maintenance of the rope that pulls the elevator car, it is necessary to know whether there is an abnormality due to partial breakage of the strands of the steel wire constituting the rope. For this reason, the probe of the rope tester is brought close to the rope while moving the rope, and the detection output is recorded on the recording paper and measured.

Conventionally, as an apparatus for detecting this type of rope breakage or the like, an apparatus for detecting an abnormality in an elevator rope is known (for example, see Patent Document 1). The elevator rope abnormality detection device includes a detection unit that magnetically detects an abnormality such as a broken wire in proximity to a rope including a steel wire, and a signal processing unit that processes a signal obtained from the detection unit. And a fixing device for holding and attaching the rope abnormality detecting device at a predetermined position in the elevator hoistway where the rope moves relatively and the distance between the rope and the traveling path is constant. ing. In other words, this elevator rope anomaly detector uses the fact that the rope is made of steel wire to form a magnetic loop that includes a portion of the rope and detects changes in the magnetic field strength caused by breakage etc. by the sensor. is doing.
JP 2004-99328 A

  In the above-described conventional elevator rope abnormality detection device, it is necessary to specify an abnormal portion of the rope with respect to the rope that has detected the abnormality. In order to identify the abnormal part of this rope, it was performed according to the following procedure.

  Using a dedicated computer connected to the rope tester, which is the above-mentioned elevator rope anomaly detection device, the location where the abnormal value of the rope is detected on the software is detected, and the distance to the abnormal location of this rope is the reference point Calculate from

  Next, the inspection worker gets on the elevator car and is the support point on the ceiling of the elevator rope. The distance from the rope fixing part on the counterweight side to the abnormal part of the rope is measured using a tape measure. measure. And the abnormal part of a rope is found by palpation, referring to this measured distance and correction value.

  However, in the method of detecting an abnormal part of the rope using the above-mentioned tape measure, it is necessary to check the abnormal part of the rope because it involves work on the car, determination of the abnormal value occurrence point of the rope by palpation, etc. There is a problem that it takes a long time and there is a possibility of overlooking an abnormal portion of the rope.

  The present invention has been made to solve the above problems, and provides a rope marking device and a rope marking method capable of directly marking an abnormal rope location based on an abnormal location detection signal from an elevator rope abnormal detection device. The purpose is to provide.

  In order to achieve the above object, in the elevator rope marking device of the present invention, a rope abnormality detection device for detecting an abnormal portion of a steel wire constituting a rope that pulls the elevator car, and the rope abnormality detection device An abnormal location detection signal receiving means for receiving an abnormal location detection signal, a paint spraying device for spraying and marking paint on the abnormal location of the rope, and the paint injection upon receiving an abnormal location detection signal from the abnormal location detection signal receiving means And a paint injection control means for controlling the spraying of the paint on the apparatus.

  In order to achieve the above object, in the rope marking method for an elevator according to the present invention, a rope abnormality detection for detecting an abnormal portion of a steel wire constituting a rope for pulling an elevator car and generating an abnormal portion detection signal. And an abnormal part detection signal receiving step for receiving the abnormal part detection signal; and a paint injection step for receiving the abnormal part detection signal and injecting paint onto the abnormal part of the rope. It is.

  According to the elevator rope marking device and the method thereof according to the present invention, it is possible to mark by directly spraying the paint on the rope abnormal portion based on the abnormal portion detection signal from the elevator rope abnormality detecting device. It is possible to easily and reliably confirm the abnormal part.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator rope marking apparatus and method according to the present invention will be described with reference to the drawings. Here, the same or similar parts are denoted by common reference numerals, and redundant description is omitted.

  FIG. 1 is a front view showing a state where a rope marking device 1 according to an embodiment of the present invention is attached to the outside of a car 3, and FIG. 2 shows an enlarged configuration of the rope marking device 1 of FIG. FIG. 3 is a longitudinal sectional view, and FIG. 3 is an enlarged front view showing the paint spraying device 7 of FIGS. 1 and 2.

  As shown in FIG. 1, the rope marking device for an elevator includes a rope abnormality detection device 6 that detects an abnormality portion of the rope 4 that pulls the elevator car 3, and an abnormality location detection signal from the rope abnormality detection device 6. In response to this, a paint spraying device 7 is provided for spraying and marking paint on the abnormal part of the rope 4.

  As an example, in this elevator, the car 3 moves up and down along a guide rail 31 erected in the hoistway 32. One end of the rope 4 that travels between a pair of car sheaves 36, 37 provided at the bottom of the car 3 is fixed to the ceiling of the hoistway 32 at the rope fixing part 34. The other end of the rope 4 is fixed with a counterweight 5 via a hoisting machine 35.

  The rope abnormality detection device 6 is provided outside the upper corner portion of the car 3. The rope abnormality detection device 6 is necessary for knowing whether or not there is an abnormality due to a partial breakage of a steel wire constituting the rope 4 that pulls the car 3. The rope abnormality detection device 6 includes a detection unit (not shown) that magnetically detects an abnormality such as a broken wire in proximity to a rope including a steel wire, and a signal process (not shown) that processes a signal obtained from the detection unit. It is comprised from the rope abnormality detection apparatus etc. which consist of a part.

  The abnormal point detection signal from the rope abnormality detection device 6 is transmitted to an abnormal point detection signal receiving means (not shown) existing in the car 3 away from the rope abnormality detection device 6. The abnormal part detection signal receiving means includes, for example, a buzzer device that receives the abnormal part detection signal and generates an abnormal part detection buzzer sound. In addition to this, a lighting device that generates red light upon receipt of an abnormal point detection signal, a dedicated computer that displays on the screen, or the abnormal point detection signal that will be described later is a paint injection control device 8. It may be configured to input directly to the.

  In addition, you may arrange | position this abnormal location detection signal receiving means in the landing of the predetermined floor away from the rope abnormality detection apparatus 6. FIG.

  As shown in FIG. 2, the rope marking device 1 is provided with a coating material spraying device 7 that sprays and marks the coating material 24 on an abnormal portion of the rope when an abnormality is found in the rope 4. As long as the paint spraying device 7 can attach a commercially available paint spray can 20 and spray the paint 24 onto the rope 4, for example, the shape structure is not limited. The paint 24 is not particularly limited, but a fluorescent paint or the like may be used so that it can be easily distinguished even in the dark.

  The paint spraying device 7 is preferably installed in the vicinity of the rope abnormality detection device 6. When it cannot be installed in the vicinity of the rope abnormality detection device 6 due to local conditions, it may be set at a position away from the rope abnormality detection device 6 as long as it can spray the paint 24 onto the rope 4.

  In addition, the paint spraying device 7 can be configured to move up and down separately from the car 3 along the guide rail 31. A paint injection control device 8 installed on the landing side is connected to the paint injection device 7 via an operation cable 10. The paint injection control device 8 receives the abnormal part detection signal from the abnormal part detection signal receiving means and controls the spraying of the paint 24 on the paint injection apparatus 7. The paint injection control device 8 is composed of, for example, an operation lever that opens the tip 9b when the grip 9a is gripped. The operation levers are configured to be rotatable with respect to each other by restraining the side surfaces of the pair of bent members 41 with the rotation pins 38.

  Further, a television camera (not shown) may be installed in the vicinity of the paint spraying device 7 to remotely check the spraying state of the paint 24 by the paint spraying device 7.

  The operation cable 10 includes a long outer cylinder 25 and an operation wire 11 that slides inside the outer cylinder 25 in the axial direction. The outer cylinder 25 and the operation wire 11 at one end of the operation cable 10 are connected to the distal end portion 9b. The operating wire 11 is pulled by gripping the grip 9a and opening the tip 9b. Further, the grip 9a is released, and the operation wire 11 is returned using the force of a return spring 19 described later. Further, the outer cylinder 25 and the operation wire 11 at the other end of the operation cable 10 are connected to the paint spraying device 7 side.

  As shown in FIGS. 2 and 3, the paint spraying device 7 includes a spray can 20 that sprays the paint 24 and a fixing device 13 that fixes the spray can 20 to the outer surface of the car 3. A rocking link 16 is attached to the fixing device 13. The swing link 16 forms an L shape composed of a vertical portion 39 and a horizontal portion 40. The swing link 16 is swingably attached by a rotation pin 17 provided penetrating a boundary portion between the vertical portion 39 and the horizontal portion 40. The end portion of the operation wire 11 is connected to the attachment portion 18 fixed to the lower end of the vertical portion 39 of the swing link 16 via the fixing portion 15 fixed to the fixing device 13. A return spring 19 is interposed between the fixed portion 15 and the mounting portion 18.

  Further, a spray can 20 of the paint spraying device 7 is attached to the fixing plate 14 of the fixing device 13 by a support band 23. The upper end of the operation portion 21 of the spray can 20 is in contact with the lower end of the horizontal portion 40 of the swing link 16. When the grip portion 9a is released and the tip end portion 9b is closed, the operation wire 11 in the operation cable 10 is loosened, and the swinging link 16 is moved by the two-dot chain line swinging link 16a by the spring force of the return spring 19. As shown, the horizontal portion 40 fluctuates away from the operation portion 21. When the horizontal portion 40 of the swing link 16 is in a state of pushing the operation portion 21 of the spray can 20, the paint 24 is ejected from the nozzle 22 of the operation portion 21.

  Here, the worker who hears the abnormal location detection buzzer pulls the operation wire 11 by grasping the grip 9 a and sprays the paint 24 from the spray can 20 onto the rope 4.

  In the present embodiment configured as described above, marking is performed on an abnormal portion of the rope 4 according to the following procedure.

  First, the rope abnormality detecting device 6 investigates and records the abnormal part of the rope 4, and if there is no abnormality, the investigated data is stored.

  When an abnormal point detection signal is generated from the rope abnormality detection device 6, the worker listens to an abnormal point detection buzzer sound from the abnormal point detection signal receiving means and stores the investigated data. Thereafter, the car 3 is moved between the floor where the worker is located and the floor below the worker, and the worker gets on the car 3. A spray can 20 of the paint spraying device 7 is installed using a support band 23 in the vicinity of the base portion on which the rope abnormality detection device 6 is provided.

  At this time, the attachment part of the paint spraying device 7 is changed as necessary so that the position of the nozzle 22 of the spray can 20 of the paint spraying device 7 faces the rope 4 side. Then, the direction of the nozzle 22 of the spray can 20 is finely adjusted so that the paint 24 from the nozzle 22 of the spray can 20 reaches the rope 4.

  The operation cable 10 from the paint spraying device 7 is drawn into the elevator car 3 from the upper corner outside the car 3 via the door gap.

  The outer tube 25 of the pulled-in operation cable 10 and the end of the operation wire 11 are attached to the distal end portion 9 b of the paint injection control device 8. Then, a test of the spraying condition of the paint 24 from the spray can 20 of the paint spraying device 7 is performed.

  After completing the above preparation, the worker gets into the car 3, turns on the rope abnormality detection device 6, and lowers the car 3.

  The car 3 is stopped at a location where an abnormal location detection buzzer sound is generated from the buzzer device which is an abnormal location detection signal receiving means for the abnormal location detection signal from the rope abnormality detection device 6. At the location where the abnormal location detection buzzer sound is generated, the car 3 is reciprocated several times to reconfirm the abnormal location.

  Next, the car 3 is stopped at the location where the abnormal location detection buzzer sound is generated, the grip portion 9a which is the coating material injection control device 8 is gripped, and the coating material 24 is sprayed from the nozzle 22 of the spray can 20 and the rope 4 Mark the abnormal part of.

  After marking the abnormal part of the rope 4 with the paint 24, the worker gets on the upper part of the car 3 and confirms the state of the marked part of the abnormal part of the rope 4.

  According to the present embodiment, the paint 24 from the paint spraying device 7 can be directly sprayed and marked on the rope abnormality location based on the abnormality location detection signal from the rope abnormality detection device 6. Thus, the abnormal part of the rope 4 can be easily and reliably confirmed, and the preventive maintenance of the rope 4 that pulls the car 3 can be achieved.

  Furthermore, the present invention is not limited to the embodiment as described above, and a portion to be marked by spraying paint on the abnormal portion of the rope is displayed on the screen using an imaging means such as a television camera. However, various modifications can be made without departing from the spirit of the present invention.

The front view which shows the state which attached the rope marking device of the elevator of embodiment of this invention to the elevator. The longitudinal cross-sectional view which expands and shows the rope marking apparatus of FIG. The front view which expands and shows the coating material injection apparatus of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Rope marking device, 3 ... Ride car, 4 ... Rope, 5 ... Counterweight, 6 ... Rope abnormality detection device, 7 ... Paint injection device, 8 ... Paint injection control device, 9a ... Grip part, 9b ... Tip part, DESCRIPTION OF SYMBOLS 10 ... Operation cable, 11 ... Operation wire, 12 ... Rail, 13 ... Fixing device, 14 ... Fixing plate, 15 ... Fixing part, 16, 16a ... Swing link, 17 ... Rotating pin, 18 ... Mounting part, 19 ... Return 20 ... spray can, 21 ... operation part, 22 ... nozzle, 23 ... support band, 24 ... paint, 25 ... outer cylinder, 31 ... guide rail, 32 ... hoistway, 34 ... rope fixing part, 35 ... winding Upper machine, 36 ... car sheave, 37 ... car sheave, 38 ... rotating pin, 39 ... vertical part, 40 ... horizontal part, 41 ... member.

Claims (8)

A rope abnormality detecting device for detecting an abnormal portion of a steel wire constituting a rope for pulling an elevator car;
An abnormal point detection signal receiving means for receiving an abnormal point detection signal from the rope abnormality detection device;
A paint spraying device for spraying and marking paint on the abnormal part of the rope;
A paint injection control device for controlling the spraying of the paint by the paint injection device in response to an abnormal location detection signal from the abnormal location detection signal receiving means;
An elevator rope marking device characterized by comprising:   The elevator paint marking apparatus according to claim 1, wherein the paint spraying device is disposed in the vicinity of the rope abnormality detection device.   The elevator rope marking device according to claim 1 or 2, wherein the abnormal point detection signal receiving means is arranged inside the car.   4. The elevator rope marking device according to claim 1, wherein the paint injection control means is disposed inside the car.   The elevator rope marking device according to any one of claims 1 to 4, further comprising an operation cable connected from the paint injection control means to the paint injection device to control the injection of the paint.   The paint spray control means is disposed inside the car, and the operation cable is connected to the paint spraying device via a door gap of the car. Item 6. The elevator rope marking device according to Item 5.   7. The rope marking device for an elevator according to claim 6, wherein the abnormal location detection signal receiving means includes a buzzer device that receives the abnormal location detection signal and generates an abnormal location detection buzzer sound. A rope abnormality detection step for detecting an abnormal part of a steel wire constituting a rope for pulling the elevator car and generating an abnormal part detection signal;
An abnormal location detection signal receiving step for receiving this abnormal location detection signal;
A paint injection step of receiving the abnormal location detection signal and injecting paint onto the abnormal location of the rope;
An elevator rope marking method characterized by comprising:

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