JP4847283B2 - Cable gripping prevention device for cable splice - Google Patents

Description

The present invention is related to splice sections of rope circulating movement in the automatic circulation cableway, the splice Nigisaku prevention device for automatic circulation cableway for Nigisaku device is prevented from Nigisaku with the carriage To do.

  In the automatic circulation type cableway, the rope is stretched and circulated in an endless manner between pulleys pivoted at a stop, and in the railway line, a free gripping device equipped with the rope on the carrier holds the rope. Rope and move the rope and move the carrier, and when the carrier arrives at the stop on one end, the gripping device unloads the rope and decelerates the passenger to a speed that makes it easy for the passenger to get off. . After that, the transporter is forwarded from the arrival side to the departure side, and after the passengers continue to board the transporter, it accelerates to the circulation speed of the rope. Operate the carrier to the stop on the side.

The cord has a splice portion for endless connection, and the splice portion has a diameter that is about 10% thicker than the nominal diameter of the cord. If the grasping device of the transporter grasps such a splice part, the grasping force is changed to cause damage to the rope or to a half bite state where the rope cannot be completely grasped. In order to prevent the gripping device equipped with the carrier from gripping the splice part of the rope, a rope tester is arranged along the movement path of the rope at the stop, and the rope strand is magnetically The splice detection device that detects disconnection detects the splice location of the rope, and controls the departure so that the grip device provided in the carrier does not grip the splice connection section of the rope (for example, see Patent Document 1). ).
JP 50-147981 A

  According to the above configuration, since the rope tester of the splice detection device reacts whenever there is a local disconnection in the rope, it reacts to the disconnection at a location other than the splice connection portion of the rope and is not a splice connection portion. Nevertheless, malfunctions that do not leave the carrier may occur.

  The relationship between the movement of the rope and the acceleration of the carrier will be described with specific numerical examples. If the acceleration distance of the carrier is 12.5m and the circulation speed of the rope is 5m / second, the acceleration of the carrier is 1.0m / (second x second), the acceleration time is 5 seconds, and the rope is within the acceleration time of the carrier. The moving distance is 25 m. That is, in the method of directly detecting the splice connection section, the distance to reach the gripping position after the splice connection section is detected needs to be 25 m or more. However, in recent years, due to the desire to reduce the occupied area of the stop, the stop has become smaller and the transport distance of the transporter has also become shorter. For this reason, it is difficult to install the splice detection device 25 m or more before the grasping position in the stop.

Further, since the rope tester is less common demand using magnetic, obtained not been produced as a general-purpose product and is becoming more difficult, the development of the splice detecting apparatus which does not use the rope tester is desired .

An object of the present invention is a splice grip prevention device for preventing a carrier departed from a stop of an automatic circulation cableway from gripping a splice connection portion of a rope, and there is no malfunction due to disconnection of the rope. , forwarding distance transportation devices can also be effectively applied with a short retention field, small compared to the rope tester by conventional magnetic is to provide a splice Nigisaku prevention apparatus inexpensive automatic circulation cableway.

To solve such problems, a first aspect of the present invention, between stop field and spliced into an endless, by setting the colored portions subjected to wear colors near the front in the moving direction of the splices Stretched and circulated ropes, a carrier equipped with a gripping device that allows the ropes to be seized and released, and a detection signal is output when the colored portion is detected in parallel with the movement path of the ropes. a color sensor, a movement amount detector for outputting a pulse depending on the detected the movement amount the amount of movement of the rope, output and receives the detection signal output from the color sensor from the moving amount detecting device a pulse counter for counting the pulse, the pulse number set on the basis of the length of the splice connecting portion is recorded, said by comparing the count value from the recorded number of pulses the pulse counter Judgment of whether the carrier can leave A comparator that outputs a signal , and a carrier start instruction device that controls start or stop of the carrier using a signal received from the comparator, and a gripping device provided in the carrier carries the rope It is characterized by preventing the splice connection from being gripped.

  Further, the colored portions to be detected by the color sensor are provided at a plurality of locations ahead of the rope in the traveling direction with respect to the splice connection portion of the rope.

The apparatus for preventing gripping of a splice part of a cableway according to the present invention is a color sensor in which a colored part is provided at a position spaced apart from a splice connection part of a rope that circulates and transports a carrier, and this is installed on the arrival side of a stop By detecting the splice connection part, the gripping device of the carrier does not hold the splice connection part of the rope, and the position of the colored part can be freely set with respect to the splice connection part. In addition, it is possible to electrically detect the colored part before the splice connecting part passes through the stop, and a color sensor is used in comparison with the case where a splice detector using a conventional magnetic rope tester is installed in the stop. The splice connection detection means can shorten the length of the stop. Furthermore, since the conventional rope tester using magnetism also detects the disconnection of the wires other than the splice connecting portion, there is a possibility that a malfunction may occur in the splice detection operation, but the splice using the color sensor of the present invention. The detection means detects the splice connection at the colored part, so that it does not cause malfunctions such as detecting a broken wire like a conventional magnetic rope tester, so the splice connection can be detected more reliably. Improves. Furthermore, there is an effect that the cost can be reduced economically as compared with the case of using a magnetic rope tester.

A colored portion is provided at a predetermined interval on the tip side of the splice connecting portion of the rope, and is detected by a color sensor. At the same time, a moving amount detecting device constituted by a photoelectric switch or the like that converts the moving amount of the rope into an electric pulse by the rotation of the rope is configured in the receiving device. The pulse signal output from the movement amount detector is counted by a pulse counter. Further, the count value of the pulse counter is input to the comparator. In the comparator, the number of pulses corresponding to the length of the splice connection portion is set as a prescribed value, compared with the count value from the pulse counter, and when equal, a signal is output to the carrier start instruction device. Further, the carrier departure instruction device is configured to instruct the acceleration push-out device to start the carrier. Thus, when the color sensor detects the colored portion set in front of the moving direction of the splice connecting portion, the departure signal is stopped from the carrier departure instruction device and the departure of the carrier by the acceleration pusher is temporarily stopped. At the same time, the pulse counter starts counting pulses from the movement amount detector and outputs the pulses to the comparator. In the comparator, the count value is equal to a predetermined value set in advance, that is, when the splice connection part passes through the gripping position where the gripping device of the transporter grips the rope moving at a predetermined speed. Is output to the carrier start instruction device, and the carrier start instruction device instructs the acceleration pusher device to start the carrier and resumes the start of the carrier. Thus, the gripping device provided in the carrier does not grip the splice connection portion of the rope.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a plan view of an automatic circulation cableway facility 1. The rope 2 is spliced between the pulley 23 pivoted at the foothill stop 21 and the pulley 24 pivoted at the summit stop 22 so as to be endlessly wound. Next, when the drive side pulley 23 is rotationally driven in the direction of the arrow 27, the driven side pulley 24 also rotates in the direction of the arrow 28, and the rope 2 circulates and moves along the cableway. A gripping device (not shown) provided in the carrier 3 grips the rope 2 that circulates and the carrier 3 circulates between the foot stop 21 and the summit stop 22 as the rope 2 moves. It moves and passengers are transported.

FIG. 2 is a schematic plan view of the foothill stop 21 of the automatic circulation type cableway facility 1 shown in FIG. The rope 2 is supported and guided by the rope receiving device 7 arranged in the field, is wound around the pulley 23 and turned approximately 180 degrees, and then circulates toward the summit stop 22. The carrier 3 arriving at the foothill stop 21 unloads the cable 2 and is decelerated to a low speed by the deceleration pusher 31 and the passenger gets off. Then, the carriage 3 is sent from the arrival side to the departure side by the transfer pusher 25. Then, it stops at the departure standby position 11 and waits. Subsequently, the carrier 3 that has been stopped at the departure standby position 11 by a command from the departure instruction device 9 described later is accelerated on the rail 4 to the speed of the rope 2 by the acceleration pusher 30, and then the gripping position 10. At this point, the rope 2 is seized and it departs for the summit stop 22. In addition, on the departure side of the foothill stop 21 , a carrier departure detection switch 15 for detecting the departure carrier 3 is fixed.

As described above, the movement amount detection device 8 for detecting the movement amount of the rope 2 is configured in the rope receiving device 7 arranged on the arrival side at the foothill stop 21 where the rope 2 and the carrier 3 shown in FIG. 2 move. To do. Further, a color sensor CS is installed in the vicinity of the moving path of the rope 2. FIG. 3 is a diagram showing the structure of the movement amount detection device 8 and the positional relationship between the color sensor CS and the rope 2. First, the structure of the movement amount detection device 8 will be described. The rope receiving device 7 arranges the rope receiving beams 13 and 13 in parallel on the left and right sides with the two rope rings 12 and 12 sandwiched therebetween, and the shaft 14 is bridged and fixed in a horizontal state therebetween. It pivots freely. A detection piece RC is attached to one side of the two ropes 12, 12, and the photoreceiver beam 13 is provided with a photoelectric tube switch LB so as to react to the detection piece RC. When the rope 2 moves in this manner, the detection piece RC also rotates as the rope 2 rotates, and in response to this, the photoelectric switch LB is turned on and off to generate a pulse.

The color sensor CS is attached to a frame or the like with a distance d in the horizontal direction with respect to the moving strip 2. The interval d shown in FIG. 3 is about 50 mm, for example. The pulse signal generated by the movement amount detection device 8 configured as described above is input to the pulse counter CN and counted. Accordingly, one pulse counted by the pulse counter CN is the circumferential length of the rope 12 and corresponds to the amount of movement of the rope 2 when the rope 12 rotates once. For example, if the diameter of the portion of the rope 12 where the rope 2 abuts is set to a diameter with a circumferential length of 1 m, one pulse is 1 m. Therefore, if the number of detection pieces RC attached to the rope 12 is increased, the amount of movement of the rope 2 can be detected more accurately. The number of pulses counted by the pulse counter CN can be converted as the moving distance of the rope 2. The detection signal of the color sensor CS is input to the pulse counter CN, and the pulse counter CN starts counting with the detection signal. Subsequently, the count value of the pulse counter CN is input to the comparator CC. Hereinafter, as an example, one pulse is assumed to be 1 m.

  Next, the colored portion 50 is provided by separating a predetermined interval B (one pulse) from the tip portion 2f of the splice connecting portion 2a to the front of the rope 2 in the traveling direction. The coloring portion 50 may be colored by applying a paint or wrapping and attaching a coloring tape.

FIG. 4 is a block diagram showing signal paths. Signals from the movement amount detection device 8 and the color sensor CS are input to the pulse counter CN. Based on the signals from the color sensor CS, the pulse signals generated by the movement amount detection device 8 are counted and compared. Output to CC. The section of the splice connecting portion 2a as the comparator CC described above, the specified pulse number F which corresponds to the length obtained by adding the distance between the colored portion 50 and the distal end portion 2f of interval of the splice portion 2a is set Then, it is determined whether or not the carrier 3 can be started by comparing the prescribed pulse number F with the count value from the pulse counter CN by the comparator CC. The departure signal of the comparator CC is output to the departure instructing device 9, and the departure instructing device 9 intermittently disconnects a clutch (not shown) incorporated in the acceleration pusher 30 to start or stop the carrier 3. Take control.

FIGS. 5 (a) and 5 (b) show a process in which the splice connecting portion 2a passes after the colored portion 50 provided on the rope 2 is detected by the color sensor CS at the above-mentioned foothill stop 21. It is a schematic diagram. First, FIG. 5A shows a state when the color sensor CS installed on the arrival side of the foothill stop 21 detects the colored portion 50 provided on the rope 2. For example, as described above, when the moving speed of the rope 2 is 5 m / sec and the acceleration push speed of the carrier 3 is 1.0 m / (second × second), the distance A in which the rope 2 moves while the carriage 3 is accelerated is as follows. Assuming that the color sensor CS is installed at a position of a distance A (25 m) where the pulley 23 opposite to the traveling direction is turned back along the path along which the rope 2 moves starting from the grip position 10 as (25 m). . Further, assume that the colored portion 50 is provided at the distal end portion 2f of the splice connecting portion 2a in order to briefly explain the detection method.

Now, when the color sensor CS detects the colored portion 50, it transmits a detection signal to the pulse counter CN, and the pulse counter CN starts counting pulses from the movement amount detection device 8. If the transporter 3 departs from the standby position 11 in this state, when the transporter 3 reaches the gripping position 10, the tip 2f of the splice connection portion 2a also reaches the gripping position 10. A gripping device (not shown) provided in the transporter 3 grips the splice connection portion 2a. Accordingly, when the color sensor CS detects the colored portion 50, a signal is transmitted to the carrier departure instruction device 9 via the comparator CC, and the carrier departure instruction device 9 accelerates so that the departure of the carrier 3 is not performed. The pusher 30 is controlled. The colored portion 50 is matched with the distal end portion 2f of the splice connecting portion 2a as described above. However, when the colored portion 50 is provided at a distance B (1 m) in front of the distal end portion 2f, the splice connecting portion of the color sensor CS is provided. 2a is detected 1m early (1 pulse), and there is a margin that the start of the transporter 3 at the standby position 11 can be stopped at a position 1m before the splice connection 2a reaches the gripping position 10. . Alternatively, when the colored portion 50 is matched with the distal end portion 2f of the splice connecting portion 2a as described above, the attachment position of the color sensor CS is set as the starting point and the route 2 moves along the rope 2 The same effect can be obtained by setting the distance A (25 m + 1 m) at which the pulley 23 opposite to the traveling direction is turned back.

Next, FIG. 5B shows a state where the rear end 2r of the splice connecting portion 2a has passed the gripping position 10. Assuming that the colored portion 50 is set at the tip 2f as described above as the section (50m) of the splice connection 2a, the comparator CC has a prescribed pulse corresponding to the section (50m) of the splice connection 2a. Set the number F (50 pulses). Thus, the color sensor CS detects the colored portion 50 set at the tip 2f of the splice connecting portion 2a, and the pulse counter CN starts counting the pulse signal generated by the movement amount detection device 8, and the comparator CC uses the pulse counter. The value counted by CN is compared with a prescribed pulse number F (50 pulses), and when the prescribed pulse number F (50 pulses) is reached, a signal is transmitted to the carrier departure instruction device 9. Subsequently, the carrier departure instruction device 9 transmits a departure signal to the acceleration pusher 30 and controls the acceleration pusher 30 to accelerate and push the carrier 3 at the standby position 11 to start. At this time, the rear end 2r of the splice connecting portion 2a passes through the position of the color sensor CS. When departure the carriage 3 is detected by the carriage departure detection switch 15 installed in the line-side tip of the foot retention field 21, a pulse counter CN in the detection signal is reset count, again the color sensor CS colored portion Until the time 50 is detected, the transporter 3 is sequentially started by the acceleration pusher 30.

In the above, when the colored portion 50 is provided in front of the tip portion 2f with the interval B (1 m) apart, the number of pulses (50 pulses) corresponding to the section of the splice connection portion 2a is equal to the length of the interval B (1 m). Is set in the comparator CC as a prescribed pulse number F (50 pulses + 1 pulse). Subsequent operations are the same as described above, the color sensor CS detects the colored portion 50, the pulse counter CN starts counting pulse signals generated by the movement amount detection device 8, and the comparator CC counts the pulse counter CN. The measured value is compared with the prescribed pulse number F (50 pulses + 1 pulse), and when the prescribed pulse number F (50 pulses + 1 pulse) is reached, a signal is transmitted to the carrier departure instruction device 9. Subsequently, the carrier departure instruction device 9 transmits a departure signal to the acceleration pusher 30 and controls the acceleration pusher 30 to accelerate and push the carrier 3 at the standby position 11 to start. At this time, the rear end 2r of the splice connecting portion 2a passes through the position of the color sensor CS. When departure the carriage 3 is detected by the carriage departure detection switch 15 installed in the line-side tip of the foot retention field 21, a pulse counter CN in the detection signal is reset count, again the color sensor CS colored portion Until the time 50 is detected, the transporter 3 is sequentially started by the acceleration pusher 30.

Example 2 relates to claim 2 and is provided with a plurality of colored portions. As shown in FIG. 6, the prescribed number of pulses is forward of the colored portion 50 in the traveling direction of the ridge 2 with respect to FIG. It is a schematic diagram at the time of providing the coloring part 50A with an interval (3 m) corresponding to D (3 pulses). First, when the coloring unit 50A passes the color sensor CS, the pulse counter CN starts counting pulses transmitted from the movement amount detection device 8. Next, when the coloring unit 50 passes the color sensor CS, the number of pulses counted by the pulse counter CN is compared with the specified number of pulses D (three pulses) preset in the comparator CC, and the number of counted pulses is specified. If the number of pulses D (3 pulses) or less, the counting is continued, and if the colored portion 50 is not detected even if the counted number of pulses is equal to or greater than the specified number of pulses D (3 pulses), the color sensor CS is replaced with the colored portion. It is determined that the colored portion other than 50A has been detected as a malfunction, and the count value of the pulse counter CN is cancelled. In this case, the prescribed pulse number F set in the comparator CC is the prescribed pulse number D (3 pulses) + the prescribed pulse number F (50 pulses + 1 pulse) corresponding to the interval between the colored portions 50A and 50. In this way, by providing the colored portion 50 and the colored portion 50A at two locations, the malfunction of detecting the colored portion 50 for detecting the splice connecting portion 2a of the color sensor CS and the colored portion other than the colored portion 50A can be prevented. The transporter 3 prevents the departure due to the malfunction of the color sensor CS from being hindered, thereby improving the reliability of the splicing part gripping prevention device.

The mounting position of the color sensor CS and the position of the colored portion of the rope 2 described above are described in one embodiment, and the distance between the splice connecting portion 2a and the colored portion 50 and the gripping device after the carrier 3 has started. The setting value of the number of pulses of the comparator CC can be freely changed in consideration of the relationship with the distance A that the cord 2 moves while reaching the position, and the mounting position of the color sensor CS and the cord 2 The position of the colored portion 50 can be arbitrarily set. That is, the splice connection portion 2 a may not be located at the foothill stop 21 or the summit stop 22, and the splice connection portion 2 a detects the coloring portion 50 or the coloring portion 50 A after the color sensor CS detects the coloring portion 50 or the coloring portion 50 A. Since there is a margin in the distance to reach the rope position 10, it can be used even on a ropeway at a stop where the transporting distance of the carrier 3 is short. The setting position and the number of the colored portions 50 detected by the color sensor CS for detecting the splice connecting portion 2a are not limited to the above-described embodiments, and various forms are possible without departing from the gist of the present invention. Of course, it can be adopted.

The top view of an automatic circulation type cableway installation . Schematic plan view of the foot of the automatic circulation type cableway facility . The front view explaining the structure of the movement amount detection apparatus, and the attachment state of a color sensor. The block diagram explaining the processing path | route of the pulse signal for detecting the splice connection part of this invention. The schematic diagram of the foothill stop explaining the process which detects the splice connection part of this invention. The schematic diagram of the foothill stop explaining the process which detects the splice connection part of this invention (Example 2).

DESCRIPTION OF SYMBOLS 1 Automatic circulation type cableway equipment 2 Line 2a Splice connection part 2f Front end part 2r Rear end part 3 Carriage 4 Rail 7 Rope receiving device 8 Movement amount detection apparatus 9 Depth indication apparatus 10 Grip position 11 Standby position 12 Rope 13 Rope Beam 14 Axis 15 Carriage departure detection switch 21 Mountain foot stop 22 Mountain summit stop 23 Pulley 24 Pulley 25 Forward feed device 27, 28, 29 Arrow 30 Acceleration push device 31 Deceleration push device 50, 50A Coloring part A Distance B Distance D Specified pulse Number F Specified number of pulses CS Color sensor RC Detection piece LB Photoelectric switch CN Pulse counter CC Comparator

Claims (2)

Between stop field and spliced endless, the rope was stretched circulated by setting a colored portion subjected to wear colors near the front in the moving direction of the splice unit,
A carrier equipped with a gripping device capable of gripping and freeing the rope;
A color sensor arranged in parallel with the movement path of the strip and outputting a detection signal when the colored portion is detected, and a movement amount that detects a movement amount of the rope and outputs a pulse depending on the movement amount A detection device, and a pulse counter that counts pulses output from the movement amount detection device when receiving the detection signal output from the color sensor ;
The number of pulses set on the basis of the length of the splice connection is recorded , and the number of pulses recorded is compared with the count value from the pulse counter to determine whether the carrier can be started or not. A comparator that outputs
Using the signal received from the comparator, the carrier start instruction device for controlling the start or stop of the carrier,
An apparatus for preventing the gripping of a splice portion of a cableway, wherein the gripping device provided in the carrying device is prevented from gripping a splice connection portion of the rope.   The splice portion gripping prevention device for a cableway according to claim 1, wherein the colored portions detected by the color sensor are provided at a plurality of positions ahead of the rope in the traveling direction with respect to the splice connection section of the rope.

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