JP2009073424A - Incomplete rope gripping detector for rope gripping machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an incomplete rope gripping detector for a rope gripping machine with a simple structure, capable of easily being adjusted and maintained and of promptly checking the state of the rope gripping machine and returning the apparatus to a normal operating state when an incomplete rope gripping state is detected. <P>SOLUTION: This incomplete rope gripping detection apparatus for a rope gripping machine detects the incomplete rope gripping in the rope gripping machine equipped with a carrier mounted on the departure side of a stop on an automatic circulation type ropeway. The incomplete rope gripping detection apparatus for a rope gripping machine is provided with: a rope gripping machine detector for detecting the rope gripping machine; a shape measuring sensor operated by the detection signal from the rope gripping machine detector; and a sensor controller for the shape measuring sensor. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a device for detecting when a rope is gripped in a state in which a gripper is incomplete at the departure of a carrier at a stop of an automatic circulation type cableway.

  The automatic circulation type cableway equipment is operated by suspending a rope endlessly between each pulley arranged at the stops at both ends, and suspending a carrier on this rope to circulate between the stops. It is widely used as a transport facility for sightseeing in mountainous areas and as a transport facility for ski resorts. Recently, it has also been used as a transport facility in venues such as expositions, and is also attracting attention as an application for urban or regional transportation.

  The operation of this automatic circulation type cableway facility is generally performed as follows. First, a plurality of transporters are arranged at predetermined intervals in the cableway, and the gripping device provided in these transporters grips the rope, and the transporter moves as the rope moves. When the transporter arrives at the stop, the gripper of the transporter is transferred to the main rail elevated in the stop, and then the gripper unloads the rope and travels on the main rail. A transport device for transporting the transporter is arranged along the main rail, and the transporter that has arrived is decelerated by the transport device, and after the deceleration is completed, the passengers get off while being transported at a very low speed. Thereafter, the transporter is sent to the departure side in a U shape along the main rail, and passengers are boarded while the transporter moves at a slow speed. When the boarding is completed, the transporter is accelerated again by the transfer device, and when the speed of the line becomes the same, the gripper of the transporter grips the line, and the transporter is suspended by the line and enters the cableway. depart. The above operations are sequentially performed every time the carriers disposed in the cableway at predetermined intervals arrive at the stop one after another.

  The gripping machine provided in the above-mentioned carrier is thus a device that seizes the rope in the cableway and connects it firmly with the rope, and unloads and separates the rope at the stop. In particular, the cable must be securely gripped so that it does not slide or separate from the cable in the track. Therefore, there are various security devices that constantly monitor the condition of the grinder in the cableway stop, and if an abnormality in the grinder is detected, the operation of the immediate cableway is stopped and there is an abnormality. The carrier does not leave the track.

As one of such security devices, there is an incomplete gripping detection device that detects that the connection between the gripping device and the rope (grip) is incomplete at the time of departure of the carrier. This incomplete grasping device has a slit with a shape that is slightly larger than the outer shape of the plate when the grasping device has successfully grasped the rope. If the grinder is installed at a position where the grinder passes, and the grinder normally grasps the rope, it passes through the slit of this plate, but the grinder is incompletely gripped. If it is, or if it is not grasped, the grinder contacts the plate and this plate rotates, and the operation of the cableway is stopped by detecting this movement (for example, , See Patent Document 1).
Japanese Utility Model Publication No. 59-195051

  However, in the apparatus shown in this document, it is necessary to accurately maintain the gap between the grinder and the plate. However, since the structure of the apparatus is somewhat complicated, the adjustment of the gap is complicated. At the same time, it is necessary to maintain the regular state by carrying out regular maintenance. In addition, if this device detects an incomplete gripping state, an inspector goes straight to the gripping machine to check the state of the gripping machine, and after taking necessary measures, remove the rotated plate. Work to restore is necessary, and it takes a certain amount of time to resume operation of the cableway.

  The present invention has been made to solve such problems, and is simple in structure and easy to adjust and maintain. When an incomplete gripping state is detected, the gripping mechanism is provided. An object of the present invention is to provide an incomplete grasping device for a grinder capable of quickly checking the state of the machine and returning the device.

  In order to solve the above-mentioned problems, an incomplete grasping device for a grinder according to the present invention is provided on a starting side of a stop of an automatic circulation type cableway, A device for detecting an incomplete grasping device of a gripping machine for detecting a cord, a gripping device detector for detecting the gripping device, a shape measuring sensor operated by a detection signal of the gripping device detector, And a sensor controller for the shape measuring sensor.

  Moreover, the display which displays the shape measured by the said shape measurement sensor by the output from the said sensor controller is provided.

  The incomplete grasping device of the present invention is composed of a grasping device detector, a shape measurement sensor, and a sensor controller of the shape measurement sensor, and is not complicated and has a structure and is easy to maintain and adjust. . Further, when resuming the operation of the cableway, it is possible to resume the operation promptly because it is possible to operate only by electrically resetting the control state without requiring a mechanical return operation.

  A specific embodiment of an incomplete grasping device for a grasping machine according to the present invention will be described below with reference to the drawings. FIG. 1 shows the arrangement relationship of the entire automatic circulation type cableway facility. As shown in the figure, pulleys 13 and 14 are pivoted at the stops 11 and 12 at both ends, respectively, and a rope 15 is wound around each pulley 13 and 14 in an endless manner, The rope 15 is circulated and driven in the directions of arrows A and B to form a cableway line. In the cable track, a conventionally known carrier 16 capable of grasping and releasing the rope 15 is suspended from the rope 15 and arranged so that the distances between the carriers 16 are equal. These transporters 16 grip the cable 15 in the cable track and move along with the movement of the cable 15, and in the bus stops 11 and 12, the cable 15 is unloaded and each bus stop 11, 12 is moved. It is supported by the rails 17 and 18 provided in and moves along this. On the departure side of the transporter 16 in each of the stops 11 and 12, the gripper of the transporter 16 grips the strip 15 in an incomplete state at the position where the transporter 16 has completed the gripping of the strip 15. An incomplete grasp detection device 20 for detecting this is provided.

  FIGS. 2 and 3 are a front view and a side view, respectively, showing the relationship between the transporter 16 and the incomplete gripping device 20 at the position where the transporter 16 has completed the gripping of the rope 15. First, the transporter 16 includes a gripping device 21 that grips and releases the rope 15 at an upper portion thereof, a suspension device 22 pivotally attached to the gripping device 21, and a passenger car or a chair connected to the lower portion of the suspension device 22. (Not shown). The grinder 21 is provided with traveling rollers 26 in the front and rear directions, and the traveling roller 26 rolls on the rails 17 and 18 so that the transporter 16 can move along the rails 17 and 18. . A plurality of tires 29 of a transfer device 27 provided along the rails 17 and 18 are in contact with the upper portion of the grinder 21, and the transport of the transporter 16 is performed by rotationally driving the tires 29. Note that the transfer device 27 is not shown in FIG. 3 for easy understanding.

  The grinder 21 includes a first gripper 23 fixed to the main body of the grinder 21 and a second gripper 24 pivotally supported on the first gripper 23. 21. By applying the elastic force of the spring built in the main body 21 to the second handle 24, the cord 15 is sandwiched between the first handle 23 and the second handle 24 and gripped. The second handle 24 is formed integrally with a lever 30 extending toward the main body of the grinder 21, and a roller 31 pivotally supported on the end of the lever 30 abuts on a rail provided in the stop. By being pushed down downward, the handle part of the second handle 24 at the end opposite to the roller 31 opens with respect to the first handle 23, and the cord 15 is unloaded. 2 and 3 show a state where the grinder 21 has completed the grasping of the rope 15.

  At the position where the grinder 21 has completed the grasping at the time of departure of the transporter 16, the shape measurement sensor 25 is installed on the upper surface of the rail frame 19 that supports the rails 17, 18 so as to be located immediately below the rope 15. ing. The shape measurement sensor 25 is a non-contact type shape measurement sensor that measures the shape of the rope 15 and the grips 23 and 24 and generates shape data based on the measurement result. For example, a laser oscillator and a CCD sensor Alternatively, the ridge 15 may be provided by a light cutting method that includes a CMOS sensor and measures a shape by forming an image of reflected light of a belt-shaped laser beam irradiated on a measurement object from a laser oscillator on a CCD sensor or the like at a predetermined angle. The lower shapes of the first and second handgrips 23 and 24 can be measured in two dimensions. The measurement signal measured by the shape measurement sensor 25 is output to a sensor controller (not shown), and shape data is calculated based on the output value of the shape measurement sensor 25. Further, the shape data can be sent from the sensor controller to a computer or the like, and the measurement shape can be displayed on a separate display.

  At almost the same position as the shape measurement sensor 25, a gripping device detector 28 for detecting the upper portion of the gripping device 21 when passing through the transporter 16 is inserted above the rope 15 and the grips 23, 24. It is fixed. The gripping device detector 28 is a non-contact type switch such as a proximity switch, for example, and detects and outputs a signal when the grips 23 and 24 of the gripping device 21 pass. The shape measuring sensor 25 is controlled to operate and measure in accordance with the signal from the grinder detector 28, and when the grinder 21 is at the position of the shape measuring sensor 25, the rope 15 and the handle 23. , 24 lower shapes are measured.

  FIG. 4A is a cross-sectional view of a state in which the first and second handgrips 23 and 24 are normally gripping the ridge 15, and FIG. 25 is shape data generated by measurement. The sensor controller of the shape measuring sensor 25 stores the shape data of the normal gripping state as the master shape M, and the lower portions of the first and second grippers 23 and 24 excluding the shape range of the rope 15. Shape portions are set in advance as measurement ranges X1 and X2, and the measured values of the measurement ranges X1 and X2 are compared with the master shape M at the time of actual measurement, for example, to calculate a separation distance in the height direction, for example. ing. In addition, a determination value is set in the sensor controller of the shape measurement sensor 25 as a numerical value of a limit at which the distance between the measurement values in the measurement ranges X1 and X2 and the master shape M is allowed. That is, this determination value is used to determine whether or not the first handle 23 and the second handle 24 are normally holding the rope 15, and the distance between the measured value and the master shape M is determined. Is smaller than the determination value, the grasping state is normal, and if larger than the determination value, it is determined that the grasping state is incomplete. When the value calculated by comparing the measured value with the master shape M exceeds the determination value, that is, in the case of incomplete gripping, a control signal is issued from the sensor controller of the shape measurement sensor 25. The operation of the cableway is automatically stopped based on this control signal.

  6 and 7 both show a state in which the grinder 21 has gripped the rope 15 incompletely, and FIG. 6A shows a state in which the grinder 21 has half-gripped the rope 15. FIG. 6A shows measurement shape data S1 measured by the shape measurement sensor 25 in this state. FIG. 7A is a cross-sectional view showing a state in which the gripping machine 21 does not grip the rope 15 and the first and second grippers 23 and 24 are opened. ) Shows measurement shape data S2 measured by the shape measurement sensor 25 in this state.

  As shown in the figure, in the state where the grinder 21 has gripped the rope 15 incompletely, the measured shape data S1 and S2 are deformed with respect to the master shape M, and the shape measurement sensor 25 is shown. In the sensor controller, the maximum distance in the height direction between the shape data S1 and S2 and the master shape M is calculated, for example, as shown in H1 and H2 in the figure. The state shown in FIGS. 6 and 7 exceeds the determination value in which the numerical values of H1 and H2 are set. From this, a control signal is issued from the sensor controller, and the operation of the cableway is stopped. The carrier 16 is prevented from starting in an incomplete gripping state. The determination value in the sensor controller is set as a numerical value such that an incomplete grip is detected in this way.

  As a form different from the above form, whether or not the grip is incomplete by setting a measurement point at an arbitrary position of the first and second grips 23 and 24 and measuring the displacement of this position. It may be detected. That is, as shown in FIG. 7, in the sensor controller of the shape measurement sensor 25, the positions of the vertical dotted lines Y1 and Y2 in the horizontal direction in the figure are set as the measurement positions, and the first positions located on the vertical dotted lines Y1 and Y2 are set. The distance between the measurement points P1 and P2 of the first and second handgrips 23 and 24 and the corresponding positions P1 ′ and P2 ′ of the master shape M is measured and calculated, and this value is set separately. You may make it compare with.

  As described above, the gripping state is measured every time the transporter 16 passes, and the gripping state is determined. The measurement shape data measured for each passage at the same time as this measurement is used as the sensor of the shape measurement sensor 25. It is also possible to output from the controller to the computer and display the measured shape on a display provided in the computer. In this way, for example, if an indicator is installed in the vicinity of a staff member such as a driver's cab, it is possible to always monitor the staff member visually, and even when the transporter 16 stops due to an incomplete gripping mechanism. Since the grasping state can be confirmed in the driver's cab or the like, it is possible to smoothly perform the determination and work of the subsequent treatment. In addition, when the operation of the cableway is resumed after these operations are completed, the operation state can be easily made by electrically resetting the control state of each device. Can do.

Explanatory drawing showing the entire cableway equipment Front view showing the relationship between the carrier and the incomplete grasping device Side view showing the relationship between the carrier and the incomplete grasping device Explanatory drawing showing gripping state and measurement shape Explanatory drawing showing gripping state and measurement shape Explanatory drawing showing gripping state and measurement shape Explanatory drawing showing the measurement shape

Explanation of symbols

11, 12 Stops 13, 14 Pulley 15 Line 16 Carrying device 17, 18 Rail 20 Incomplete gripping detection device 21 Grasping machine 22 Suspension machine 23 First gripper 24 Second gripper 25 Shape measurement sensor 26 Roller 27 Transfer Device 28 Grinder detector 29 Tire 30 Lever 31 Roller A, B Arrow X1, X2 Measurement range M Master shape S1, S2 Measurement shape data Y1, Y2 Dotted lines P1, P2 Measurement points

Claims (2)

  An incomplete grasping device for a grinder that is provided on a starting side of a stop of an automatic circulation cableway and detects an incomplete grasp of a grinder provided in a carrier, the gripping device detecting the grasper A device for detecting an incomplete grasping device of a gripping device, comprising: a rope searcher; a shape measurement sensor that operates according to a detection signal of the gripping device detector; and a sensor controller of the shape measurement sensor.   2. The incomplete grasping device for a grasping machine according to claim 1, further comprising a display for displaying the shape measured by the shape measurement sensor based on an output from the sensor controller.

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