JP3759763B2 - Cableway escape prevention device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an escape prevention device for preventing a rope from being removed from a rope receiving device for supporting and guiding a rope in a cable track of a cableway facility.
[0002]
[Prior art]
The structure of a conventional escape prevention device will be described with reference to FIGS. A rope receiving device for supporting and guiding the rope 60 is attached to both ends of the pillar arm 61 of the pillar erected in the cable track. The illustrated receiving device includes four receiving wheels 41, 41, 41, 41 with an escape preventing ring 57. First, the configuration or structure of the four-wheel rope receiving device 40 is pivotally attached to both ends of the two-wheel beam 43 so that the receiving rings 41 and 41 can be rotated by pins 42 and 42, respectively. Further, two sets of two-beam beams 43, 43 pivotally attached to the receiving rings 41, 41 are pivotally attached to both ends of the four-wheel beam 46 by two-wheel beam pins 44, 44. On the other hand, the support bracket 47 is tightly fixed to the front end portion of the support arm 61 by tightening the two holding plates 48, 48 through the both sides of the support arm 61 from the lower side. To do. A center shaft 45 is fixedly extended in the horizontal direction in the cable receiving bracket 47, and the four-wheel beam 46 formed by arranging the four-wheel receiving rings 41, 41, 41, 41 in the traveling direction of the carrier as described above is the center. It pivots at the position. In this way, the load of the bent cable 60 is evenly supported by the four receiving rings 41, 41, 41, 41 by adopting the balanced structure.
[0003]
Next, the escape prevention device 51 is fixedly extended with a bracket 52 facing upward at the left end of the four-wheel beam 46 in the drawing, and further, an escapement prevention wheel 57 is pivotally attached to the tip of the arm 56 with a pin 58. One end is pivotally attached to the pivot shaft 54 so as to be rotatable in the vertical direction. Next, a pressing spring 55 is compressed and mounted between the arm 56 pivotally attached to the bracket 52 and the escape preventing ring 57, thereby energizing the receiving ring 41 in the direction of arrow 59 to receive the receiving spring 41. The rope 60 and the escape prevention ring 57 sandwich the rope 60 from above and below with a constant force, thereby preventing the rope from being received from the receiving ring 41. Further, an adjustment bolt 48 is provided on the upper portion of the bracket 52 so that the force applied to the escape preventing ring 57 can be adjusted by changing the compression amount of the pressing spring 50.
[0004]
[Problems to be solved by the invention]
In the conventional technology described above, the receiving ring located at the distal end portion of the receiving device for supporting and guiding the rope that circulates and moves along the cableway line is provided with an escape preventing ring energized by the elastic restoring force of the spring. Have been invented and put into practical use, in which a rope is sandwiched from above and below to prevent escape. This escape prevention device has a structure in which the escape prevention wheel can be moved up and down or rotated so that the grasper of the portable device can pass in the operating state. Even with such conventional anti-extraction devices, a considerable effect has been obtained against the accidental removal of the rope.
[0005]
However, if a severe typhoon blows due to the typhoon while the cableway equipment is out of service during off-season, etc., the wind pressure of the rope overcomes the force energizing the escapement prevention wheel and swings upward to escape from the reception ring. The possibility of doing was left in the structure somewhat. An object of the present invention is to provide an escape prevention device for preventing a cable strip from coming off a receiving ring even in a strong wind as described above while the cableway facility is closed.
[0006]
[Means for solving problems]
In order to solve the above-described problems, the present invention is a escape prevention device provided in the vicinity of a rope receiving device for supporting a rope of a cableway facility that is transported by suspending a carrier on the rope, and near a free end. An anti-extraction plate formed with an anti-extraction pawl is pivotally attached to a pin at a fixed position, and the anti-extraction pawl engages with the rope to prevent escape, and from the rope It is made to rotate between the retreat positions to retreat.
[0007]
[Action]
A component of the receiving device that movably supports the cable straddled in the cable track, and extends to the support bracket that is fixed to the end of the support arm with the support bracket facing upward To do. Next, one end of the escape prevention plate is pivotally attached to the support bracket so as to be rotatable up and down with a turning bolt. The tip of the escape prevention plate is formed with an escape prevention pawl having a semi-circular cutout for fitting the rope from above, and it acts from the side in the vicinity of being pivotally attached by the pin of the escape prevention plate. The pin is fixed and extended. Next, a limit switch bracket is fixedly extended upward on the opposite side of the receiving ring of the support bracket pivotally attached to the escapement prevention plate, and a limit switch is provided at the upper end.
[0008]
Now, when the cableway equipment is out of service, when it is moved to the working position almost horizontally with the escape prevention plate, the rope supported by the receiving ring is covered from above with the escape prevention pawl formed at the tip. Covering and fitting, and by fixing to the support bracket with bolts that are stoppers, the escapement is reliably prevented. In this state, if the electric motor is started and the operation of the transporter is started, the gripping device that grips the rope collides with the escape prevention plate, which is very dangerous. In order to prevent this, the working pin that sticks and extends from the side of the escape prevention plate is removed from the limit switch, and the limit switch is set to the “OFF” state to provide electrical security so that the operation of the cableway facility cannot be resumed. I am doing so.
[0009]
Next, when resuming the operation, after removing the bolt that has fixed the escape prevention plate to the support bracket at the working position, and turning the escape prevention plate upward to invert to the retracted position, Fix it again to the support bracket with bolts so that it does not fall to the operating position due to vibration or strong winds during operation. At this position, the working pin extending from the side surface of the escapement prevention plate abuts the limit switch and puts it in the “ON” state, so that the safety of the escapement prevention plate can be released electrically and the operation can be resumed. To do.
[0010]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a four-wheel rope receiving device 1 provided with the escape prevention device 9 of the present invention, and FIG. 2 is a plan view of FIG. The rope receiving device according to the embodiment is a four-wheel rope receiving device 1 in which four-wheel receiving wheels 2, 2, 2 and 2 are arranged in the traveling direction of the carrier. The receiving ring 2 has a structure in which a tire 2b formed by recessing a portion where an elastic member such as rubber is brought into contact with the rope 30 into a concave shape is sandwiched between disc-shaped flanges 2a and 2a from both sides.
[0011]
The receiving rings 2 and 2 having this configuration are pivotally attached to the positions where the left and right ends of the two-wheel beam 4 are symmetrical with each other by pins 3 and 3. Next, the two sets of two-beam beams 4 and 4 pivotally attached to the two receiving rings 2 and 2 are further pivotally attached to symmetrical positions on both ends of the four-wheel beam 7. In this way, the four receiving rings 2, 2, 2, 2 are pivoted side by side in the traveling direction of the carrier so as to be equally spaced via the two-wheel beams 4, 4.
[0012]
Next, as shown in FIG. 1, a column arm 20 is fixedly extended in the horizontal direction at the upper end of a column erected in the cableway. Next, as shown in FIG. 1, the mounting portion 8 a of the receiving bracket 8 is placed on the upper surface of the support arm 20, and then sandwiched plates 18, 18 are applied to the lower surface of the support arm 20, .. Are tightened through the mounting portion 8 a so that the rope bracket 8 is firmly attached to the support arm 20. At that time, the adjustment bolts 17 and 17 and the adjustment bolts 17 and 17 provided on both side surfaces of the mounting portion 8a are pressed against or pulled into the side surface of the support arm 20, and the direction of the four-wheel rope receiving device 1 with respect to the cable track direction To correct.
[0013]
Next, a support bracket 10 protrudes and is fixed upward on the upper plate 8b of the cable receiving bracket 8, and one end of the escape prevention plate 11 is vertically moved by a pin 12 to the support bracket 10 on the fixed position side. It is pivotally attached so that it can rotate freely. Near the free end of the escape prevention plate 11, an escape prevention pawl 11a cut into a convex semicircular shape for fitting the rope 30 is formed. Further, a limit switch bracket 15 formed of a plate-like member is also provided on the upper side of the upper plate 8b at a position located on the rear side on the right side of the support bracket 10 in a fixed position pivotally attached to the escapement prevention plate 11 as shown in FIG. Further, a limit switch 16 that is a detection switch is attached to the upper end portion in a horizontal state toward the escape prevention plate 11 side.
[0014]
In this way, the escape prevention device 9 provided on the upper plate 8b of the four-wheel rope receiving device 1 mainly includes the escape prevention plate 8 that is rotatably supported up and down, and the escape prevention plate 11 located at the retracted position 11B. It consists of a limit switch 16 for detecting the position of the plate 8.
[0015]
As shown in FIG. 3, the action of the escape prevention device 9 having the above-described structure is indicated by a solid line by tilting the escape prevention plate 8 from the retracted position 11B indicated by a two-dot chain line in the direction of the arrow 21. In the operating position 11A, the rope 30 supported by the receiving rings 2, 2,... Of the rope receiving device is fitted into the escape prevention pawl 11a formed at the tip of the escape prevention plate 8. When the escapement prevention plate 8 is set to the operating position 11A, the stop hole 11c perforated in the escapement prevention plate 11 and the stop hole 10a perforated in the support bracket 10 match each other, so that the fixing device, that is, the bolt 13 which is a fastener is passed through. By tightening and fixing to the support bracket 10 at the operating position 11A, the rope 30 is prevented from jumping up. At the action position 11A, the action pin 11c fixed and extended from the side surface of the escape prevention plate 11 is separated from the limit switch 16 as shown in the figure, so that the limit switch 16 is in the “OFF” state, and the rope 30 is circulated and moved. The electric motor for operating the carrier is prevented from starting.
[0016]
Next, when resuming the operation of the cableway facility, the bolt 13 that has fixed the escapement prevention plate 11 to the support bracket 10 at the operation position 11A is removed, and the escapement prevention plate 11 is moved up and down around the pin 12. Make it rotatable. Then, after inverted at the retracted position 11B shown by the solid line and rotated in the arrow 22 direction from the operating position 11A showing Datsusaku preventing plate 11 as shown in FIG. 4 by a two-dot chain line, again, fixing device i.e. It fixes to the support bracket 10 side with the volt | bolt 14 which is a fastener. In this way, the escape prevention plate 11 is detached from the rope 30 supported by the receiving rings 2, 2,..., And at the same time, the action pin 11c operates the limit switch 16 which is a detection switch, and the limit switch 16 is turned on. By doing so, the electrical security is released and the operation of the cableway facility can be resumed. In this manner, the escape prevention device 9 of the present invention is a device that ensures that the rope does not come off the receiving device due to strong wind or the like while the operation of the cableway is stopped or stopped.
[0017]
【The invention's effect】
In order to allow the gripping machine to pass through the conventional escape prevention device, the escape prevention wheel is biased with a spring so that it can move up and down. When it acts, the escape prevention wheel floats up and comes off the receiving ring of the receiving device, and there is a possibility that a serious accident will be caused if operation is resumed in this state.
[0018]
When the cableway is suspended, the escapement prevention device of the present invention is fixed to the receiving bracket side in a state in which the rope is inserted into the escapement prevention claw formed with the escapement prevention plate at the tip and pressed against the receiving ring. By doing so, it is ensured that the rope does not come off the receiving ring of the receiving device. On the other hand, when the operation is resumed, the escape prevention plate is rotated upward to be in the retracted position completely removed from the rope, and is fixed to the rope receiving bracket side. At the same time, the action pin fixedly extended to the escape prevention plate operates the limit switch which is a detection switch so that the electric motor can be started to circulate and move the rope. Make the structure.
[0019]
Among the cableway facilities, in particular, in the fixed circulation type cableway facility that circulates through the pulleys pivoted at the stops at both ends while holding the ropes using the box-type passenger car carrier, Since the carrier remains suspended in the cableway, the passenger car carrier having a large wind receiving area is easily affected by the wind, and the possibility of escape is increased accordingly. The escape prevention device of the present invention is more effective for the escape of such a type of cableway equipment. At the same time, it provides safety when resuming operation.
[Brief description of the drawings]
FIG. 1 is a side view showing a configuration of an escape prevention device of the present invention.
FIG. 2 is a plan view showing the configuration of the escape prevention device of the present invention.
FIG. 3 is a side view showing a state in which the escape prevention device is in the operating position.
FIG. 4 is a side view showing a state in which the escape prevention device is in a retracted position.
FIG. 5 is a front view showing a configuration of a conventional escape prevention device.
FIG. 6 is a front view showing a configuration of a conventional escape prevention device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Four-wheel cable receiver 2, 2 Receive-wheel 2a, 2a Flange 2b, 2b Tire 3, 3, ... Pin 4, 4 Two-wheel beam 5, 5 Two-wheel beam pin 6 Center shaft 7 Four-wheel beam 8 Cable bracket 8a Mounting part 8b Upper plate 9 Escape prevention device 10 Support bracket 10a, 10b Stop hole 11 Escape prevention plate 11A Action position 11B Retraction position 11a Escape prevention claw 11b Stop hole 11c Action pin 12 Pin 13, 14 Stop bolt 15 Limit switch bracket 16 Limit switch 17, 17,... Adjustment bolt 18, 18 Clamp plate 19, 19, Tightening bolt 20 Strut arm 21, 22 Arrow 30 Rope 40 Four-wheel cable receiver 41, 41,. ... Pins 43, 34, ... Two-wheel beam 44, 44, ... Two-wheel beam pin 45 Center shaft 46 Four-wheel beam 47 Receiving brackets 48, 48 Clamping plates 49, 49 Clamping bolts 50, 50 Adjustment bolt 51 Escape prevention device 52 Bracket 53 Adjustment bolt 54 Rotating shaft 55 Pressing spring 56 Arm 57 Escape prevention wheel 58 Pin 59 Arrow 60 Line 61 Strut arm

Claims (1)

An anti-extraction device that is provided near the receiving device that supports the cable of the cableway equipment that is transported by suspending the carrier on the cable and prevents the cable from being removed from the cable receiving device when the cableway is suspended Because
An escape prevention plate formed with an escape prevention claw near the free end is pivotally attached to a pin at a fixed position.
The escape prevention plate is configured to rotate between an action position where the escape prevention pawl engages with the rope to prevent the escape and a retreat position where the escape prevention plate is retracted from the rope. and having said retracted position and fixing device for fixing the de rope prevention plate, and the limit switch and the contact and separation to oN the limit switch in a fixed position in the de-search prevention plate, the action pin to OFF A cableway escapement prevention apparatus that is provided and configured so that the cableway can be operated by turning on the limit switch when the escapement prevention plate is in the retracted position .

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