JP5808157B2 - Emergency braking device for rope-drawing transportation equipment - Google Patents

Description

  The present invention relates to an emergency braking device that detects and stops a vehicle when a rope that pulls the vehicle breaks in a transportation facility that carries the vehicle by pulling the vehicle with a rope.

  Equipment, such as cable cars and inclines, that pulls vehicles with ropes and transports people and goods can be operated even on relatively steep slopes. Many are used. Such a rope pulling type transportation facility is generally configured as follows. Two rails are laid in parallel between the foot of the foothill and the summit stop, and the rope is extended along these rails. The rope is wound around a pulley or winch provided at the summit stop, and a vehicle is connected to at least one end of the rope. Then, by driving a pulley or the like, the rope is wound up or drawn out, and the vehicle is moved between the two stops to operate.

  The vehicle is not equipped with a drive device or the like for self-running. Therefore, if the rope is cut, the vehicle will run away to the foot of the mountain. Therefore, in such a case, the cutting of the rope in the vehicle is mechanically detected, thereby operating a brake provided in the vehicle to stop the vehicle (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 9-295572

  Since the rope breakage detection braking device described in Patent Document 1 is to mechanically operate the emergency stop device via a link mechanism or the like, there are many parts to configure and there are difficulties in production and assembly, Furthermore, complicated maintenance work was required. In Patent Document 1, the vehicle is towed by two or three ropes, but depending on various conditions for operating the vehicle, it is necessary to tow the vehicle by more ropes. There may be.

  The present invention has been made in view of such circumstances, and even when the vehicle is pulled by a large number of ropes, if any one of the ropes is cut, this is detected. It is an object of the present invention to provide an emergency braking device for a rope-traction transportation facility that can brake a vehicle and can be simply configured without using a complicated mechanism.

According to a first aspect of the present invention, there is provided a rope pulling type transportation facility in which a rope is driven by a prime mover, and the vehicle is pulled by the rope to carry the vehicle. A detection arm with one end hooked on the cable, a switch lever that is rotatable in the vertical direction and rotates when the other end of the detection arm comes into contact, and detects the rotation of the switch lever A detection switch that stops the vehicle by a signal from the detection switch, and the detection arm is a plurality of the detection arms having different lengths in a direction of being hooked on the rope, and the different lengths. The detection arms are arranged next to each other .

According to a second aspect of the present invention, in the emergency braking device according to the first aspect, the plurality of detection arms are configured to independently rotate the switch lever .

  According to a third aspect of the present invention, in the emergency braking device according to the first or second aspect, the prime mover is stopped by a signal from the detection switch to stop the vehicle.

  According to a fourth aspect of the present invention, in the emergency braking device according to any one of the first to third aspects, the vehicle brake provided in the vehicle is operated by the signal of the detection switch to stop the vehicle. Yes.

  According to the present invention, the configuration of the emergency braking device can be simplified by reducing the number of parts without using a complicated mechanism or the like, and the vehicle can be pulled by a large number of ropes. Even in such a case, if any one of the ropes is cut, this can be detected and the vehicle can be braked.

Track longitudinal section of cable-drawing transportation equipment Vehicle side view Front sectional view of the lower part of the vehicle The top view which showed the connection part of a vehicle and a rope Side view showing connecting part of vehicle and cable Front view showing connecting part of vehicle and cable AA arrow enlarged view in FIG. BB arrow enlarged view in FIG. Side view showing a state in which the rope has been broken or relaxed

    Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal section of a track showing an example of a track of a rope pulling type transportation facility. As shown in the figure, the track is formed by connecting a foothill stop 10 at a low altitude and a mountain summit stop 11 at a high altitude, and a rail 12 is formed by connecting both stops 10 and 11. The ridges 13 are extended along the rails 12. One end of the rope 13 is connected to the vehicle 14, the intermediate part is wrapped around the prime mover 15 provided at the summit stop 11, and the other end is connected to the counterweight 16 on the rail 12. . Thus, the vehicle 14 and the counterweight 16 connected to the rope 13 in a slidable manner move in the opposite directions along the rail 12 between the two stops 10 and 11 by driving the prime mover 15. . Various controls of the prime mover 15 are performed by an operation control device 17 provided at the summit stop 11.

  FIG. 2 is a side view of the vehicle 14, and FIG. 3 is a front sectional view of the lower portion of the vehicle 14. A vehicle brake 20 that acts on the rail 12 to brake the vehicle 14 is provided at a lower portion of the side portion of the vehicle 14. As shown in FIG. 4, the vehicle brake 20 is pivotally supported in the vicinity of the center of each of the brake levers 21 and 22 by pins 23 and 24 so as to be pivotable in the vertical direction. By applying the spring force of 25, the rail 12 is clamped at the other end to obtain a braking force. In addition, a hydraulic cylinder 26 is provided on the side opposite to the spring 25 with respect to the brake levers 21 and 22, and the brake levers 21 and 22 are rotated against the spring force by the operation of the hydraulic cylinder 26, so that the brake lever 21 , 22 are separated from each other to release the braking force. The hydraulic cylinder 26 is connected to a hydraulic unit 27 mounted on the vehicle 14, and the hydraulic cylinder 26 operates by controlling the pressure oil generated in the hydraulic unit 27. The operation of the hydraulic unit 27 is controlled by a control device 28 mounted on the vehicle 14. In addition to this, the control device 28 transmits and receives various signals to and from the operation control device 17 that controls the prime mover 15.

  Next, the structure of the connecting portion between the vehicle 14 and the rope 13 will be described. 4, 5, and 6 are a plan view, a side view, and a front view, respectively, showing a connecting portion between the vehicle 14 and the rope 13, and FIG. 7 is an enlarged view taken along the line AA in FIG. 5. FIG. 8 is a view taken along arrow BB in FIG.

  In the present embodiment, the vehicle 14 is connected to five ropes 13. Each ridge 13 is arranged in two upper and lower positions by sequentially changing the height position of adjacent ridges 13 and arranged in a so-called zigzag pattern so as not to overlap each other in plan view, The end portions of the respective strips 13 are inserted into the socket portions 31 of the thimble rods 30 and fastened with an alloy. The thimble rod 30 passes through an insertion hole provided in the vehicle frame 18 and extends to the inside of the vehicle frame 18, and a screw portion 32 is formed at this end. A coil spring 33 and a spring receiver 34 are externally inserted into the extending portion of the thimble rod 30 from the screw portion 32 side, and a nut 35 screwed to the screw portion 32 is tightened to fix the thimble rod 30 or the coil spring 33 to the vehicle frame 18. It is locked on. With this configuration, the rope 13 pulls the vehicle 14 via the coil spring 33, so that the vibration and impact of the rope 13 propagating to the vehicle 14 are reduced.

  As shown in FIGS. 7 and 8, a support plate 36 is formed on both sides of the lower portion of the vehicle frame 18 with a position where the thimble rod 30 is hooked, and a shaft 37 is formed between the support plates 36. Is fixedly supported. On the shaft 37, detection arms 38 and 39 and a switch lever 40 described below are pivotally supported so as to be rotatable in the vertical direction.

  The detection arms 38 and 39 are long thin plates that are slightly longer from the position of the shaft 37 toward the extending direction of the rope 13 and slightly shorter toward the inner side of the opposite vehicle frame 18. In the vicinity of the shaft 37, a substantially U-shaped leaf spring 42 is inserted between the shaft 37 and the vehicle frame 18, so that the rope 13 extending direction side of the detection arms 38 and 39 rotates downward. The spring force is biased to move. Each detection arm 38, 39 has a substantially J-shaped hook 41 with a curved upper portion fixed to the leading end of the line 13 extending direction, and the hook 41 is hooked to the corresponding line 13 respectively. Thus, the detection arms 38 and 39 are supported. The detection arms 38 and 39 have different lengths in the extending direction side of the rope 13, and the detection arms 38 and 39 are arranged alternately. As a result, the hooks 41 of the adjacent detection arms 38 and 39 can be hooked on the rope 13 without interfering with each other.

  The switch lever 40 includes a thin plate-like lever member 43 that extends inward of the vehicle frame 18 at a position adjacent to the inside of both support plates 36, a connecting member 44 that connects the upper ends of the lever member 43, and The lid member 45 is formed by connecting the end portion vertical surfaces of the lever member 43. The detection arms 38 and 39 are disposed inside the switch lever 40, and the vehicle frame 18 inner side end portions of the detection arms 38 and 39 extend to the lower position of the connecting member 44. The lower surfaces of the connecting members 44 are in contact with the end portions of the detection arms 38 and 39, and the end portions of the switch lever 40 are supported by the detection arms 38 and 39 from below. That is, the switch lever 40 is supported in a state in which the connecting member 44 is placed on the ends of the detection arms 38 and 39.

  At one end of the switch lever 40 in the lateral direction, a switch bracket 46 is fixed to the vehicle frame 18 above the connecting member 44, and a detection switch 47 is fixed to the switch bracket 46. The detection switch 47 operates in contact with the connecting member 44 when the switch lever 40 rotates upward, and transmits this signal to the control device 28. On the other hand, a protruding portion 48 in which a female screw is threaded is formed on the vehicle frame 18 at the upper position of the other end of the switch lever 40, and a bolt 49 is screwed into the protruding portion 48 from above, and the lower end of the bolt 49 is The bolt 49 is fixed at a position having a slight gap between the upper surface of the connecting member 44 and the upper surface of the connecting member 44. The bolt 49 restricts the switch lever 40 from rotating excessively upward, so that an excessive load is not applied to the detection switch 47.

  Next, the operation according to the above configuration will be described. First, in a normal state, a predetermined tension acts on the rope 13, and the five ropes 13 extend in a substantially straight line toward the summit stop 11 side. The hooks 41 of the detection arms 38 and 39 are hooked on the respective ropes 13, and the rope 13 and the detection arms 38 and 39 are substantially parallel to each other when viewed from the side (see FIG. 5). It has become. The switch lever 40 is abutted and supported by the other ends of the detection arms 38 and 39 and is in a state substantially parallel to the detection arms 38 and 39. In this state, the connecting member 44 of the switch lever 40 and the detection switch 47 are not in contact with each other.

  Next, a state in which the cord 13 is broken or relaxed is shown in FIG. When any of the ridges 13 breaks or relaxes, the ridges 13 descend downward due to their own weights, and the detection arms 38 or 39 that are hooked on the ridges 13 are caused by the own weight and the spring force of the leaf springs 42. As a result, the hook 41 side is rotated downward. On the other hand, the other end of the detection arm 38 or 39 is rotated upward, and the switch lever 40 is rotated by pushing up the connecting member 44 of the switch lever 40 from below. At this time, since the detection arms 38 and 39 corresponding to the normal cable 13 are in a normal state, the connecting member 44 of the switch lever 40 is connected to the other end of the detection arms 38 and 39 in the normal state. It is in a state that has been raised from. That is, in this configuration, the detection arms 38 and 39 are configured to rotate the switch lever 40 independently. Next, in the rotated switch lever 40, the upper surface of the connecting member 44 comes into contact with the detection switch 47, and the detection switch 47 operates to transmit this signal to the control device 28.

  In response to this signal, the control device 28 transmits an operation stop signal to the operation control device 17. Receiving this signal, the operation control device 17 operates the braking device provided in the prime mover 15 and stops the devices constituting the prime mover 15, whereby the vehicle 14 is promptly stopped.

  Next, this braking stop operation can also be performed as follows. The control device 28 that has received the signal from the detection switch 47 controls the hydraulic unit 27 so that the vehicle brake 20 performs a braking operation, and simultaneously sends a driving stop signal to the operation control device 17. As a result, the prime mover 15 is stopped in the same manner as described above, and the vehicle brake 20 provided in the vehicle 14 holds the rail 12 to stop the vehicle 14. According to this configuration, even if all the ropes 13 are broken, for example, the vehicle 14 is held in a fixed position by the vehicle brake 20, so that it is further safer.

10 Yamatake stop 11 Summit stop 12 Rail 13 Line 14 Vehicle 15 Driving device 16 Counterweight 17 Operation control device 18 Vehicle frame 20 Vehicle brake 21 Brake lever 22 Brake lever 23 Pin 24 Pin
25 Spring 26 Hydraulic cylinder 27 Hydraulic unit 28 Control device 30 Thimble rod 31 Socket portion 32 Screw portion 33 Coil spring 34 Spring receiver 35 Nut 36 Support plate 37 Shaft 38 Detection arm 39 Detection arm 40 Switch lever 41 Hook 42 Plate spring 43 Lever member 44 Connecting member 45 Lid member 46 Switch bracket 47 Detection switch 48 Projection 49 Bolt

Claims (4)

In a rope pulling type transportation facility in which a rope is driven by a prime mover, and the vehicle is pulled by the rope and transported, the vehicle includes:
A detection arm which is freely rotatable in the vertical direction and has one end hooked on the rope;
A switch lever that is pivotable in the vertical direction and that pivots when the other end of the detection arm abuts;
A detection switch for detecting the rotation of the switch lever,
The vehicle is stopped by a signal from the detection switch ,
The rope pulling type transportation equipment , wherein the detection arm is a plurality of the detection arms having different lengths in the direction to be hooked on the rope, and the detection arms having different lengths are arranged next to each other. Emergency braking system. The emergency braking device for a rope pulling transportation facility according to claim 1, wherein the plurality of detection arms are configured to independently rotate the switch lever .   3. The emergency braking device for a rope pulling transportation facility according to claim 1 or 2, wherein the prime mover is stopped by a signal from the detection switch to stop the vehicle.   The emergency braking device for a rope pulling transportation facility according to any one of claims 1 to 3, wherein a vehicle brake provided in the vehicle is operated by a signal from the detection switch to stop the vehicle.

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