JP2008049928A - Rope detachment preventive device of ropeway, and rope holding machine used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rope detachment preventive device of a ropeway capable of effectively preventing detachment of a rope on a rope receiving device and keeping the position of the rope on the rope receiving device at a normal position; and to provide a rope holding machine for smoothly passing through the rope detachment preventive device. <P>SOLUTION: In the rope detachment preventive device, a rope detachment preventive ring is provided at the position opposite to a rope receiving ring across a rope, and a rope is pressed by the rope detachment preventive ring to prevent the rope detachment. A groove having the depth not less than the radius of the rope is formed in an outer circumferential surface of the rope detachment preventive ring or the rope receiving ring to be abutted on the rope from an upper side, and a bottom surface of the groove is formed with a circular arc of the diameter substantially same as that of the rope. When the rope detachment preventive ring and the rope receiving ring are abutted on the rope, the rope detachment preventive ring and the rope receiving ring completely shield a side surface of the rope. A tongue member longitudinally extending in the moving direction of the rope is provided on an upper part of a rope holding part of a rope holding machine passing therethrough, and a section orthogonal to the advancing direction of a top face of the tongue member forms a circular arc shape having the radius substantially same as that of the rope. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fixed-circulation cableway or an automatic-circulation cableway that is operated by suspending a carrying device using a grinder on an elevated cable line, and a cable from a receiving ring that supports the cable line with a post in the track. The present invention relates to an escape prevention device for preventing a strip from being escaped.

  A single-wire cableway that runs with one end of a rope suspended endlessly between two stops and suspended by a carrier on this rope is widely used as a ski lift and gondola lift, mainly as a transportation facility for sloping land. It is used. In such a cableway, a support column is erected on the track between the stops, and a cable receiving device composed of a plurality of receiving rings is provided on the support column so that the cable is movably supported. In addition, the carrying device is provided with a gripping device, and when the gripping device firmly grips the rope, the carrier is pulled and moved along with the movement of the rope.

  As described above, in the cableway, the rope is supported by the receiving ring in the track, but when the external force is applied to the rope due to wind pressure, swinging of the carrier, etc. This phenomenon is called escape. Since it is dangerous to continue running the cableway in the event of a detachment, various devices that detect the detachment and prevent the detachment themselves have been proposed and put into practical use. Some are.

  As the escape prevention device for preventing the escapement itself, an escapement prevention wheel is provided at the end of the reception device comprising a plurality of reception rings so as to face the reception ring, and a spring force is applied to the escapement prevention wheel. In many cases, the rope is sandwiched between the receiving ring and the escape prevention ring by acting on the cable. In Patent Document 1, in a similar device, a space through which the rope passes is formed by making the distance between the bottom surfaces of the grooves recessed in the outer circumferences of the escape prevention ring and the receiving ring substantially the same as the diameter of the rope. In addition, a structure is disclosed in which the outer peripheral edges located on the left and right sides of the groove are fitted to each other so that the rope does not escape except during passage of the gripping machine.

JP 62-15162 A

  However, since the above-mentioned Patent Document 1 has a structure in which the movement of the rope in the left-right direction is restricted by the outer peripheral edges of the escapement prevention ring and the receiving ring, the rope is left and right with respect to the movement direction between the outer peripheral edges. If the carrier passes when the rope is off the center of the escapement prevention ring and the receiving ring and is tilted to the left or right, the gripping machine will move between the escapement prevention ring and the receiving ring. There is a problem of interference with the outer periphery. Moreover, in order for the grinder to pass smoothly over the receiving ring, the groove of the receiving ring is usually formed very shallow due to the structure of the grinder, and is disclosed in Patent Document 1. It is not appropriate to employ a receiving ring in which such a deep groove is formed.

  An object of the present invention has been made in view of such circumstances, and effectively prevents unwinding on the rope receiving device and holds the position of the rope on the rope receiving device in a regular position. An object of the present invention is to provide a cableway escape prevention device that can be performed, and to provide a gripping device that can smoothly pass through the escapement prevention device.

  A cableway escape prevention device according to the present invention is provided in a cable receiving device or a pressure receiving device that supports a cable with a plurality of cable receiving rings, and the cable escape prevention ring is located at a position facing the cable receiving ring with the cable interposed therebetween. An escape prevention device that prevents the escape by pressing the rope with the escape prevention ring, and the outer surface of the escape prevention ring or the reception ring that comes in contact from above the rope, The groove has a depth greater than the radius of the rope, and the bottom surface of the groove is formed by an arc having substantially the same diameter as the rope, and the escape prevention ring and the receiving ring abut on the rope. In this case, the escapement prevention ring and the receiving ring completely shield the side surface of the rope.

  And the gripping machine used for this escape prevention device is provided with a tongue member that extends forward and backward in the moving direction of the rope at the upper part of the gripping part of the gripping machine, and the upper surface of the tongue member has a traveling direction. It is characterized in that it has an arc shape having substantially the same diameter as that of the above-mentioned rope in a cross section perpendicular to the cross section.

  In the present invention, the outer surface of the escapement prevention ring or receiving ring that contacts from above the rope has a groove having a depth greater than the radius of the rope, and the bottom surface of the groove has substantially the same diameter as the rope. The arc is formed. With this configuration, the side surface of the rope is completely shielded by the escape prevention ring and the receiving ring, so that the rope can be prevented from being removed, and the rope engages with the bottom surface of the groove. By doing so, the rope can be held in the normal position.

  In addition, when the gripping machine passes through the escape prevention device, a groove formed on the outer peripheral surface of the escape prevention ring or the receiving ring that comes into contact with the lower side of the rope is a generally adopted shallow groove. Since it is a groove or not provided with a groove, the lower part of the gripper part of the grinder can pass smoothly, and the top part of the gripper part has an arc having the same diameter as the rope. Since the tongue member formed in the shape is provided, when the tongue member engages with the deep groove of the escape preventing ring or the receiving ring, the gripping machine can accurately pass the normal position.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2, a rope receiving device 10 provided on a support or the like in a cableway track includes a plurality of ropes 11 and beams 12 and 13. The beams 12 and 13 are sequentially combined. Therefore, the load acting on each receiving ring 11 is balanced so as to be uniform. In the rope receiving device 10, the rope ring 11 is brought into contact with the lower portion of the rope 14 and rotates to guide and support the rope 14 so as to be movable in the longitudinal direction. An end of the rope receiving device 10 is provided with an escape prevention device 20.

  The escape prevention device 20 includes an escape prevention ring 21 at a position facing the receiving ring 11 with the rope 14 interposed therebetween, and the escape prevention ring 21 is pressed from above the rope 14. Yes, it is configured as follows. First, the L-shaped frame 22 is fixed to the lower portion of the beam 13 of the cable receiving device 10 at a position intermediate between the receiving rings 11 and 11 at the end, and extends from the fixed position toward the inside of the cable track. After that, it has a shape protruding upward. A sliding case 23 is fixed to the upper portion of the frame 22. The sliding case 23 is formed by connecting cylindrical hollow members 26, 26 with a connecting member 25. Sliding rods 24 are slidably inserted into the hollow member 26 of the sliding case 23, and a lower end portion of each sliding rod 24 is connected to a connecting plate 27, and a sliding plate is attached to each upper end portion. A moving beam 28 is fixedly connected. A spring 30 is mounted between the connecting member 25 and the connecting plate 27. The manual rod 24 or the sliding beam 28 is supported so as to be slidable in the vertical direction, and the spring 30 is slid in the sliding direction. Spring force is applied.

  Next, a beam pin 29 is fixed to the central portion of the sliding beam 28 so as to extend toward the receiving ring 11, and a two-wheel beam 31 is pivotally supported at the tip of the beam pin 29 so as to be swingable. ing. The two-wheel beam 31 has a structure in which a pair of plate-like members are arranged in parallel at regular intervals, and the plate-like members are connected to each other at the central portion, and the central portion is pivotally supported by the beam pin 29 as described above. At both ends, the escape prevention wheels 21 and 21 are rotatably supported between the plate-like members. The escape prevention ring 21 is in contact with the rope 14 on the receiving ring 11 from above, and presses the rope 14 downward by the action of the spring force of the spring 30.

  FIG. 3 is an enlarged front view showing a state in which the receiving ring 11 and the escape preventing ring 21 are in contact with the rope 14 from above and below. A central portion of the receiving ring 11, that is, a portion that supports the rope 14 is provided with a liner 40 formed of synthetic rubber or the like. The liner 40 is slightly larger than the outer diameter of the liner 40 on both left and right side surfaces. An outer metal flange 41 is fixed, and the liner 40 and the flange 41 rotate together. A groove 42 is formed in the central portion of the outer peripheral surface of the liner 40 with an arc having substantially the same diameter as that of the cable 14 so as to engage with the cable 14. The groove 42 is shallowly formed in order to minimize contact with the gripping portion of the grinder when the grinder described later is passed.

  On the other hand, the escapement prevention ring 21 that abuts from above the rope 14 has the same structure as the receiving ring 11, but has a smaller outer diameter and width direction than the receiving ring 11. Thus, the groove 45 formed in the central portion of the outer peripheral surface of the liner 43 engages with the upper surface of the rope 14. The groove 45 is a deep groove having a depth equal to or larger than the radius of the rope 14, and a bottom surface portion in contact with the rope 14 is formed by an arc having substantially the same diameter as that of the rope 14, and the groove is directed toward the outer periphery. It has a tapered shape that gradually widens. Further, metal flanges 44 having an outer diameter larger than the outer diameter of the liner 43 are fixed to both side surfaces of the liner 43 in the same manner as the receiving ring 11. 11 near the outer periphery of the liner 40. Furthermore, the flange 41 of the receiving ring 11 is located on the outer side of the flange 44 of the escapement prevention ring 21, and the flange 44 and the flange 41 overlap each other in a side view. In this way, the detachment is performed so that the side surface of the ridge 14 is completely shielded by the receiving ring 11 and the detachment prevention ring 21 at the position where the detachment prevention ring 21 is pressed against the ridge 14. The depth of the groove 45 of the prevention ring 21 is determined.

  By configuring as described above, the side surface of the rope 14 is completely covered with the receiving ring 11 and the escape prevention ring 21 as described above in a state where the carrier is not passing through. Even if a lateral external force acts on 14, the movement in the left-right direction is suppressed, and the rope 14 is prevented from being pulled out. Further, the rope 14 is sandwiched between the upper and lower escape prevention wheels 21 and the receiving ring 11 by the spring force acting on the escape prevention ring 21, and the rope 14 is placed in the upper and lower grooves 42 and 45. By being pressed and engaged, the rope 14 is well held in the normal position.

  Next, the relationship between the rope receiving device 10 and the escape prevention device 20 configured as described above and the gripping device provided in the carrier will be described. In FIG. 4, the grinder 50 provided on the upper part of the carrier grips the rope 14 firmly by the grip part 51 and moves together with the rope 14. The handle part 51 includes a tongue member 52 that covers the upper part of the handle part 51 and extends forward and backward. As shown in FIG. 4, the upper surface of the tongue member 52 extends to a position where the center portion is slightly wider than the width of the handle portion 51 in parallel with the upper portion of the handle portion 51, and both ends from this end position. As shown in FIG. 5, when viewed from the front, it is formed in a semicircular shape having a diameter substantially the same as the diameter of the rope 14, and the lower surface thereof is the rope 14. It is contacting so as to cover a part of the upper surface of.

  The gripping machine 50 configured as described above passes through the escape prevention device 20 as follows. When the gripping machine 50 enters the rope receiving device 10, the tip of the tongue member 52 provided in the gripping machine 50 comes into contact with the escapement prevention ring 21, and the upper surface of the tongue member 52 and the groove 45 of the escapement prevention ring 21. The bottom surface engages. Thereafter, the escapement prevention wheel 21 rolls along the inclined portion on the upper surface of the tongue member 52 as the gripping machine 50 advances, and the escapement prevention wheel 21 and the receiving ring 11 are gently separated by this inclination. . In this way, the grinder 50 is smoothly introduced between the escape preventing ring 21 and the receiving ring 11.

  Next, as shown in FIG. 5, when the gripping part 51 of the grinder 50 reaches a position where it passes between the escape prevention ring 21 and the receiving ring 11, the escapement prevention ring 21 and the receiving ring 11 are moved. The maximum separation is achieved. At this time, since the tongue member 52 is interposed between the escapement prevention ring 21 and the handle part 51, the escapement prevention ring 21 is pushed up to a position where the upper part 51 a of the handle part and the flange 44 of the escapement prevention ring 21 do not contact each other. Yes. Further, since the groove 42 formed in the liner 40 of the receiving ring 11 is formed shallow, the contact between the handle 51 and the liner 40 is kept to a minimum, and the flange 41 of the receiving ring 11 is also provided. And the handle lower part 51b do not come into contact with each other. Therefore, even when the handle part 51 passes between the escape preventing ring 21 and the receiving ring 11, the grasping machine 50 does not unnecessarily interfere with the escape preventing ring 21 or the receiving ring 11. It is possible to proceed smoothly.

  Further, when the grinder 50 advances and the grinder 50 is detached from the escape prevention wheel 21, the reverse operation to the above approach, that is, the escape prevention wheel 21 is a tongue member of the grinder 50. After gently descending along the sloped portion 52, the line 14 is engaged again.

  As described above, when the grinder 50 passes through the escape prevention device 20, a series of operations are smoothly performed. In addition, the tongue member 52 provided in the grinder 50 has an upper surface. Since it is formed in a semicircular shape having substantially the same diameter as the diameter of the rope 14, it accurately engages with the bottom surface of the groove 45 formed by the same arc in the escape prevention ring 21, and the escape prevention device 20 Coupled with the action of the spring 30, the grinder 50 passes through while maintaining a normal position without being displaced left and right.

  In the above description, the structure in which the cable receiving device 10 that supports the cable 14 from below is provided with the cable removal preventing device 20 has been described. Next, the cable 14 is detached from the cable receiving apparatus that supports the cable 14 from above. A configuration in which the rope preventing device 20 is provided will be described.

  In FIG. 6, the cord receiving device 60 has the same structure as that of the cord receiving device 10, and a plurality of receiving rings 11 a are in contact with and supported by the upper surface of the rope 14. An escapement preventing device 20 is provided at the end of the indentation receiving device 60. The escape prevention device 20 has the same configuration as that provided in the above-described rope receiving device 10, and the escape prevention ring 21 presses the rope 14 from below the rope 14. In this case, however, the liner 43a of the escape preventing ring 21a is not formed with a groove that engages with the rope 14, and the outer peripheral surface is flat. On the other hand, the liner 40a of the receiving ring 11a is formed with a groove 42a similar to the shape of the groove 45 of the escape preventing ring 21 provided in the case of the rope receiving device 10. That is, the groove 42a is formed as a deep groove having a bottom surface in contact with the rope 14 formed by an arc having substantially the same diameter as the diameter of the rope 14, and a taper shape in which the groove width gradually increases toward the outer periphery. Yes.

  As described above, when the escapement preventing device 20 is applied to the indentation receiving device 60, the overall configuration is configured so that the top and bottom in the case of the receiving device 10 are symmetrical. Each of the engaging grooves is such that the upper side is engaged with a deep groove. In the case of the indentation receiving device 60 configured as described above, the same operation or effect as that in the case of the receiving device 10 is produced, and it is possible to satisfactorily prevent the removal of the rope. In addition, even when the gripping machine 50 passes, it can pass smoothly.

Front view of the escape prevention device AA arrow view in FIG. Enlarged front view of receiving ring and escape prevention ring Front view showing the relationship between the gripping machine and the escape prevention device Side view showing the relationship between the gripping machine and the escape prevention device Front view when the escape prevention device is applied to the indentation receiving device

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Rope receiving device 11, 11a Receiving ring 12, 13 Beam 20 Escape prevention device 21, 21a Escape prevention ring 22 Frame 23 Sliding case 24 Sliding rod 25 Connecting member 26 Hollow member 27 Connecting plate 28 Sliding beam 29 Beam pin 30 Spring 31 Two-wheel beam 40, 40a Liner 41 Flange 42, 42a Groove 43, 43a Liner 44 Flange 45 Groove 50 Grasping machine 51 Grasping part 51a Grasping part upper part 51b Grasping part lower part 52 Tongue member 60 apparatus

Claims (2)

  The cable receiving device or the pressure receiving device that supports the rope with a plurality of receiving rings is provided with an escape preventing ring at a position facing the receiving ring with the rope sandwiched between the ropes, And a groove having a depth greater than or equal to the radius of the ridge on the outer circumferential surface of the detachment prevention ring or the receiving ring abutting from above the ridge. And the bottom surface of the groove is formed by an arc having substantially the same diameter as the rope, and when the escape prevention ring and the receiving ring abut against the rope, the escape prevention ring and the A cableway escape prevention device characterized in that a receiving ring completely shields the side surface of the rope.   A gripping machine that grips and moves the rope, and includes a tongue member extending forward and backward in the movement direction of the rope on the upper part of the gripper of the gripping machine, and the upper surface of the tongue member is A gripping machine having an arc shape having substantially the same diameter as that of the rope in a cross section perpendicular to the traveling direction.

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