JPH0939784A - Prior detector of irregular dislocation of cable way - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable irregular dislocation of a cable way off a cable receiving unit to be detected by axially supporting a detection wheel whose peripheral edge part makes contact with a cable way and detecting the deviation of moving position of the cable way by a cable receiving unit in relation to the cable receiving unit by means of the detection wheel. SOLUTION: Since a vertical line passing the center of cable receiving wheels 35... and the axial core of a beam shaft 14 of an irregular displacement prior detector 1 are displaced in the horizontal direction in a front view, a detection wheel 20 makes its rotation in such a way that a peripheral edge part 20a makes contact with a cable way 100 slantly from upside to be placed in its inclined condition. Meanwhile, when a cable way 100 is deviated to an abnormal position and very nearly dislocated off a cable receiving wheels 35..., the detection wheel 20, a detection beam 19 and a chip bar 22 turn around the beam shaft 14 so as to actuate a limit switch 24. As the result, a main electric motor which drives cable way 100 stops to operate an emergency brake so as to automatically stop the operation of carriers.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pre-detection device for preventing a rope from being removed from a rope receiving device that movably supports the rope in a ropeway.

[0002]

2. Description of the Related Art A plurality of columns are vertically arranged in a cableway line between a start point and an end point of a cableway. Then, a rope receiving device for movably supporting and guiding the rope is attached to each of the columns on the up line side and the down line side, respectively. The structure of this rope receiving device is such that two receiving wheels, which are in contact with the rope and rotate, are pivotally attached to a two-wheel beam, and the center of the two-wheel beam is symmetrical with respect to the four-wheel beam. It was constructed by being pivotally attached. Furthermore, when the number of receiving wheels is increased to six and eight, a receiving device having a similar structure is also in use. By adopting such a balance mechanism, the load acting on the rope receiving device is supported by each receiving ring.

In addition, when the moving rope comes off from the receiving ring, the cable pulling detection device electrically detects the rope and automatically stops the operation of the cableway. It is included in all of the receiving devices attached to the. The most frequently used de-extraction detecting device is to electrically detect the state after de-extraction. Therefore, even if the operation of the cableway is automatically stopped after the cable is removed, the rope moves to some extent due to the inertia, leaving some danger to the passengers being transferred.

[0004] Recently, when the position of the cord that moves the receiving ring of the cord receiving device is deviated by a certain amount, focusing on this point, the deviation of the cord is electrically detected and the cord is detected. There has been proposed a cord position detecting device and a derailing detecting device that further improve the safety of passengers by performing processing such as stopping the operation of the cableway before the vehicle disengages from the receiving wheel.

However, in the case of a cableway, a carrier is suspended from the cord by a gripping device or a gripping device. Therefore, the gripping device or the gripping device along with the cord is also detected by the cord position detecting device or the decatching device. Since it will pass through the prevention device, it must be possible to detect the removal in advance while allowing passage of the rigging device or the lanyard device.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is a device for preliminarily electrically detecting the detachment of a cord from the above-mentioned cord receiving device, and particularly, the cord and the cord are gripped. An object of the present invention is to provide a pre-extraction detection device capable of accurately performing pre-extraction detection even when a lanyard has passed.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a rope receiving device for movably supporting and guiding a rope in a ropeway, the peripheral portion of which is in contact with the rope. The detection wheel is rotatably supported by a rotatable shaft, and the detection wheel rotates following the movement of the rope, and the movement position of the rope is displaced relative to the rope receiving device. In accordance with the above, the rotation shaft and the detection wheel are idled so that the removal of the cord from the cord receiving device is detected in advance.

[0008]

In the rope receiving device which movably supports the rope, the detection wheel whose peripheral portion contacts the rope and rotates, and the rotating shaft rotatably pivoting the detection wheel, Support as much as possible so that it can be equipped. In this way, the detection wheel rotates due to the movement of the cord, and the detection wheel and the rotation shaft are displaced by idle displacement by following the displacement position deviation of the cord with respect to the cord receiving device. Be sure to detect in advance if the cord is likely to be removed.

[0009]

【Example】

(Embodiment 1) Hereinafter, a detailed embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a side view of a four-wheel receiving device 30 equipped with a pre-extraction detection device 1 according to the first embodiment of the present invention, and FIG. 2 shows a front view of FIG. At the upper end of a pillar (not shown) erected in the cableway, a pillar arm 90 is formed in a "T" shape so that the pillar arm 90 is fixed horizontally toward the ascending line side and the descending line side of the cableway line. Have been extended. Both ends of the strut arm 90 are symmetrically provided with two sets of receiving devices, one set each. FIG. 1 and FIG. 2 show a detachment pre-detection device 1 mounted on a column arm 90 of the column 4
The structure of the wheel receiving device 30 will be described. At the end of the support arm 90 made of a square steel tube, the cable receiving bracket 38 made of C-shaped steel is placed on the upper surface, and the two sandwiching plates 40, 40 are brought into contact with the lower surface to move the support arm 90 in the vertical direction. , And is tightened with long tightening bolts 41, 41, ... Underneath the neck to firmly and closely adhere to the column arm 90. At this time, the adjustment bolts 39 and 39 and the adjustment bolts 39 and 39, which are provided on each of the two sides of the rope receiving bracket 38, are projected or pulled in, and the four-wheel receiving device 3 is provided.
0 The direction of the entire cableway line is adjusted.

Next, the four-wheel beam shaft 32 is fixed to the cable receiving bracket 38 and extended. A four-wheel beam 31, which is formed by arranging two elongated plate members or U-shaped steel members in parallel with each other, is pivotally attached to the four-wheel beam shaft 32 in a vertically rotatable manner at its center position. . Next, at both ends of the four-wheel beam 31, a two-wheel beam 33 and a two-wheel beam 33, which are formed by arranging slender plate materials in parallel in the same manner, are arranged at symmetrical positions on the left and right sides about the four-wheel beam axis 32. ,
At the center thereof, the two-wheel beam shaft 34 and the two-wheel beam shaft 34 are pivotally attached so as to be rotatable in the vertical direction.

Then, the two receiving shafts 3 are formed by the pins 36 and 36 and the pins 36 and 36 at positions symmetrical with each other about the two-wheel beam shafts 34 and 34 pivotally mounted in this way.
5 and 35 and the receiving wheels 35 and 35 are rotatably attached. At that time, four receiving wheels 35 arranged in the cableway line direction,
The intervals of 35, 35, 35 are made equal. Thus, by using the balancing mechanism, the four-wheel receiving device 30
The load of the rope 100 acting on the four receiving wheels 35, 3
5,35,35 should always be supported evenly.

The four-wheel beam 31 has a two-wheel beam shaft 3
When the ropes 100 which circulate from the receiving rings 35, 35, 35, 35 are disengaged from the right side of the drawing shown in FIG.
The rope 100 is prevented from completely falling off from the four-wheel rope receiving device 30 by being locked by the rope receiving metal fittings 37 and 37. As for the two-wheel beams 33 and 33, as shown in the front view of FIG. 2, the prevention plates 33a and 33a are fixed and extend upward on the left side of the receiving wheel 35 in the drawing, respectively. The deviation of 100 toward the support arm 90 side is prevented.

Next, the four-wheel receiving device 30 having the above-mentioned structure
The structure of the de-advancement detection device 1 of the present invention which is installed in the above will be described. The support arm 2 is attached to the four-wheel beam 32 pivotally attached to the shaft 32 of the rope receiving bracket 38.
The four-wheel beam 31 is sandwiched between the base plate 2C and the bracket 25 at the lower part of the
The tightening bolts 26, 26, 26, 26 of the book are tightened to be closely attached and fixed. In the support arm 2, the shaft 6 is horizontally pierced from near the upper part toward the receiving wheel 35 side,
The key plate 7 is fitted between the arm part 2b and the arm plate 2b. Further, the key plate is fastened to the arm portion 2b with bolts 8 and 8, and the flange 6a is brought into contact with the end face of the shaft 6 and fastened with the two bolts 6a and 6a to prevent the turning arm 9 from coming off.

Next, as shown in FIG. 4, the beam shaft 14 is inserted into the spring seat 9b using an angle member in a direction perpendicular to the axis 6 of the swivel arm 9, that is, in the direction of the cableway line, and the end faces are in the same plane. Then, the flange 12 is pressed, and then the flange 12, the spring seat 9b, and the beam shaft 14 are integrally fixed with the bolts 13, 13, .... The other end of the beam shaft 14 penetrates the plate 9c and partially projects to the left side in the drawing. After the collar 16 and the bearing 15 and the collar 16 fitted in the boss 19a of the detection beam 19 are sequentially inserted into the projecting portion of the beam shaft 14, a flange 17 is attached to the shaft end surface of the beam shaft 14 with bolts 18 and 18. Fix it. Next, the detection beam 19 has a key shape in a side view, and the detection wheel 20 having the same structure as the receiving wheels 35, 35, ... To do. In this way, the rotary shaft 21 on which the detection wheel 20 is rotatably mounted is also rotatably supported on the beam shaft 14 via the detection beam 19. Then, from the boss 19a, a long bar 22a shown in FIG. 2 is formed and a tip bar 22 curved slightly in an arc shape is fixed and extended upward from the boss 19a.

Next, a bracket 23 is obliquely fixed and extended from the upper plate 2a fixed to the upper end of the support arm 2, and a limit switch 24 is operated by the tip bar 22 described above. Further, as shown in FIG. 3, the push plate 3 is provided with a push fitting 3 on the screw portion 3a.
, It is sandwiched by nuts 4, 4, ...
One end side of is fitted and brought into contact. Then, the other end is fitted into a cylindrical spring guide 10 attached to the spring seat 9b of the swivel arm 9 with bolts 11 and 11, so that the spring seat 9
abut on b.

The axis 14a of the beam shaft 14 is shown with respect to the vertical line 101 passing through the center of the cord 100 passing through the receiving rings 35.35, ... Of the four-wheel receiving device 30 shown in FIG. Displace to the left. Further, the rotation center of the detection wheel 20 is positioned lower than the axis 14a of the beam shaft 14 so that the detection beam 19 and the receiving wheel 20 face downward due to the restoring force due to their own weight.

Next, the four-wheel receiving device 30 having the above-mentioned structure
The operation of the de-advancement detection device 1 of the present invention installed in the above will be described. When the carrier is operated by activating the cableway equipment, the rope 100 in which a plurality of carriers that circulate in the cableway are suspended.
Is guided and supported in a straight line by cable receiving devices provided on the up line side and the down line side of the stanchions that are erected at predetermined intervals in the cableway line. FIG. 2 shows an embodiment 4
The operation state of the de-advancement pre-detection device 1 when the cord 100 passes through the normal positions of the receiving wheels 35, 35, ... Of the ring receiving device 30 is shown. That is, the receiving ring 3 described above
The vertical line 101 passing through the centers of 5, 35, ... And the axis 14a of the beam axis 14 of the pre-extraction detecting device 1 are displaced in the horizontal direction in a front view, and therefore the detection wheel 20 is the receiving wheel. Three
5, 35, ... Rotate in an inclined state with the peripheral edge portion 20a coming into contact with the cord 100 moving upward from diagonally above.
At the same time, it is fixed by the elastic restoring force of the spring 5 which is vertically compressed between the pressing metal fitting 3 attached to the upper plate 2a of the support arm 2 with the nuts 4, 4, ... And the spring seat 9b of the turning arm 9. It is pressed with the force of. Also,
Chip bar 22 fixed to boss 19a of detection beam 19
In the vertical state, the limit switch 24, which is one of the detection switches, has the acting portion 24a located at the center of the long groove 22a formed in the chip bar 22.
4 is not operating in this state.

Next, FIGS. 5 and 6 show a situation in which the gripping machine 80 gripping the rope 100 passes through the four-wheel cord receiving device 30. As shown, the rope 1 of the gripping machine 80
The grip 81, which is a place to grip 00, bulges on the upper surface of the cord 100, and tongues 82, 82 made of an elastic material such as a resin having a left-right symmetrical shape are provided on both sides of the tongue up and down at one end side, respectively. It is rotatably pivoted and extended. This tongue 8
Nos. 2 and 82 have a tapered tip, and the upper part is inclined gently. Thus, the tongues 8 on both sides of the center grip 81 are
2 and 82 form a mountain-shaped continuous rolling surface.

Therefore, when the gripping machine 80 of the carrier passes through the detection wheel 20 of the pre-detachment detecting device 1 with the movement of the cord 100, first, the periphery of the tongue 82 on the front side in the traveling direction of the carrier is detected. At the same time as the portion 20a abuts and rolls, the swivel arm 9 and the detection beam 19 are caused by the gradient formed on the tongue 82.
And the detection wheel 20 is lifted up in the direction of the arrow 43 around the shaft 6 provided on the support arm 2. In addition, the grip part 8
1, the rolling arm 9 and the detection beam 19 and the detection wheel 2 are rolled on the upper surface of the tongue 82 which is inclined downwardly on the rear side in the traveling direction of the carrier and reaches the rope 100 again.
0 returns in the direction of arrow 44. At this time, the elastic wheel restoring force of the spring 5 which is compressed and mounted between the push metal fitting 3 provided on the upper part of the support arm 2 and the turning arm 9 pushes the detection wheel 20 downward to allow the gripping machine 80 to pass. It is designed to prevent the detection wheel 20 from jumping up at the time.

Further, as shown in FIG. 6, a vertically long groove 22a is formed at the position where the detecting portion 24a of the limit switch 24 which operates by the chip bar 22 fixedly extended above the detection beam 19 is located. Therefore, as shown in FIG. 5, as shown in FIG.
Even if the tip bar 2 is rotated in the direction of arrow 43,
2 does not interfere with the detection unit 24a of the limit switch 24. In this way, the gripping rope 80 can pass through the detection wheel 20 of the pre-detachment detection device 1.

Next, as shown in FIG. 7, the cord 100 moving due to a strong wind or the like moves from the normal position 100a in which the cord 100 moves substantially in the center of the receiving ring 35 to the abnormal position 100 on the right side in the figure.
When it is about to be unloaded from the receiving wheels 35, 35, ... by being deviated to b, the detection wheel 20 in which the peripheral edge portion 20a comes into contact with the cord 100 and rotating, and the detection wheel 20 that is pivotally attached Beam 1
Both 9 and the tip bar 22 also rotate around the beam axis 14 in the direction of the arrow 42.

The idle movement of the tip bar 22 by the detection wheel 20 causes the action portion 24a of the limit switch 24 provided on the bracket 23 fixed to the upper end portion of the support arm 2 to rotate and operate. By the operation of the limit switch 24, the magnet M of the sequence circuit shown in FIG. 8 is actuated to stop the main electric motor (not shown) driving the rope 100, and the emergency brake (shown in the figure). Operation) to automatically stop the operation of the transporter. In this way, when the position where the cord 100 passes through the receiving rings 35, 35, ... Of the four-wheel receiving device 30 is deviated by more than a predetermined value, this is electrically detected and the cord is detected. Before 100 completely removes from the four-wheel receiving device 30, the operation of the carrier is stopped.

Further, as shown in FIG. 3, the detection wheel 20 is slanted by the elastic restoring force of the spring 5 which is compressed and mounted between the pushing metal fitting 3 attached to the upper end of the support arm 2 and the turning arm 9. By pressing the cord 100 from above, the receiving ring 35,
By preventing the flanges 35a, 35a, ... of 35, ... from coming off, the action of preventing the cord 100 from being unloaded can be combined with the above-described action of previously detecting the unloaded line. It is designed to improve the safety of the cableway.

(Embodiment 2) In Embodiment 2, as shown in FIGS. 9 and 10, the de-advancement detection device 1 used in Embodiment 1 is provided before and after the moving direction of the rope 100 to the four-wheel rope receiving device 30. A de-advancement detection device 50 including a detection wheel 69a and a detection wheel 69b that perform the same operation will be described.

On the four-wheel beam 31 of the four-wheel receiving device 30, a bracket 76 is provided with a support arm 51 having a structure in which right and left sides are symmetrical in a side view and square steel pipes are combined in an inverted triangular truss shape.
, And is tightened with four long tightening bolts 77, 77, ... Underneath the neck to firmly adhere and fix the four-wheel beam 31.

Further, as shown in FIG. 10, the shafts 55 and 55 are horizontally pierced toward the receiving wheels 35 and 35 near the upper portions of the arm portions 51b and 51b extending obliquely upward. . The key plates 56 and 56 are fitted between the arm portions 51b and 51b so that the bolt 5
7, 57 and bolts 57, 57
The shafts 55 and 55 are prevented from coming off by stopping at b and 51b.

In this way, the pivot arms 58 and 58 are inserted into the shaft portions 55b and 51b of the support arm 51 at the positions of the bosses 58a and 58a, and then the flanges are attached to the end surfaces of the shafts 55 and 55. 55a and 55a are brought into contact with each other and stopped by two bolts 57 and 57, respectively, so that the turning arms 58 and 58 are prevented from coming off.

Next, the beam arms 63 and 63 are inserted into the pivot arms 58 and 58 in the direction perpendicular to the shafts 55 and 55, that is, in the cableway direction, from the horizontal direction into the spring seats 58b and 58b using angle members. , The flanges 61 and 61 are pressed against each other with the end faces flush with each other, and then the flanges 61 and 61, the spring seats 58b and 58b, and the beam shafts 63 and 63 are integrally formed by the bolts 62, 62 ,. Secure so that

The other ends of the beam shafts 63 and 63 penetrate the plates 58c and 58c, and a part thereof is projected to the left side in the drawing. Collars 65 and 65, detection beams 68 and bearings 64 and 64 attached to bosses 68a and 68a of the detection beams 68, and collars 65 and 65 are inserted in order at the protruding portions of the beam shafts 63 and 63. , Flanges 66 and 66 on the end faces of the beam shafts 63 and 63 with bolts 67, 67 and bolts 6,
Fix with 7,67. The detection beams 68 and 68 are key-shaped in a side view, and further include rotation axes 70 and 7
0, the detection wheels 69a and 69b having the same structure as the receiving wheels 35, 35, ...
Thus, the detection wheels 69a and 69b and the rotary shafts 70 and 70 are connected to the beam axis 6 via the detection beams 68 and 68.
The bearings 3 and 63 are rotatably supported. Further, chip bars 58 and 58 are fixedly extended upward from the bosses 58a and 58a.

Next, the upper plate 51a fixed to the upper ends of the arm portions 51b and 51b of the support arm 51.
Brackets 72 and 72 are obliquely fixed and extended from and 51a, and limit switches 75a and 75a are provided at positions where they are operated by the tip bars 71a and 71b. Further, as shown in FIG. 3, the upper plate 51a
And 51a, pressers 52 and 52 are sandwiched by nuts 53, 53, ... And 53, 53, .., and are vertically adjustable in position, and springs 54 are attached to the cylindrical guide portions 52b and 52b formed at the lower ends. One end side of and 54 are fitted and brought into contact with each other. Then, the other end is provided with the swing arms 58 and 58.
The spring seats 58b and 58b of FIG.
Contact 8b and 58b.

The receiving ring 3 of the four-wheel receiving device 30 shown in FIG.
The axis 63a and 63 of the beam axes 63 and 63 with respect to the vertical line 101 passing through the center of the cord 100 passing through 5, 35, ...
A restoring force directed downward is applied to a by the weight of the detection wheels 69a and 69b.

Next, as shown in FIGS. 9 and 10, a tip bar 74a having an "L" shape in a side view is provided in the vicinity of the pivot 55 and the pivot 55 of the respective pivot arms 58 and 58, respectively.
And 74b are fixedly extended. The two arm portions 51b and 51b forming the support arm 51 are provided with fixed limit switches 75a and 75b, which are one type of detection switches acting on the tip bars 74a and 74b, respectively. It is arranged to detect the vertical turning motion of the and 58.

The operation of the de-advancement pre-detection device 50 equipped in the four-wheel receiving device 30 having the above structure will be described below. In the first embodiment, only one detection wheel 20 is provided to detect the state in which the cord 100 is likely to be unloaded from the four-wheel receiving device 30, but in the second de-advancement detection device 50 of the second embodiment, It is equipped with two sets of detection wheels 69a and 69b which perform the same operation as that of the first de-advancement detection device 1. Then, as shown in FIG. 9, with the movement of the cord 100, the grip 81 of the gripping machine 80 gripping the cord 100 and the tongues 82, 82 extending to both sides thereof detect one of them. When passing the wheel 69a,
The pivot arm 58a pivotally attached to the one shaft 55 pivots upward in the direction of arrow 78. The tip bar 74a operates the limit switch 75a by the operation of the turning arm 58a. In the sequence circuit diagram shown in FIG. 11, the magnet M is turned on by turning on the limit switch 75a.
When a is turned on and the gripping machine 80 is passing, the action of the limit switch 73a for detecting the removal in advance is temporarily avoided. However, since the gripping rope 80 has not passed on the other detection wheel 69b side during this time, the turning arm 58b is not turning upward, and therefore the limit switch 75b is not operating and the rope 100 is not moving. Receiving ring 35
When it is about to be removed from the vehicle, the limit switch 73b is actuated by the tip bar 71b due to the idling motion of the detection wheel 69b, the magnet Mb is turned off, and the operation of the carrier is stopped.

Further, when the gripping rope 80 advances in the direction of the arrow 75 and reaches the detection wheel 69b side, the detection wheel 69b moves.
The limit switch 75b is turned on when the swing arm 58b swings upward about the shaft 55 as it rides on the magnet Mb of the sequence circuit diagram shown in FIG.
Is turned on to avoid actuation of the limit switch 73b for detecting the detachment in advance. However, the revolving arm 85a on the side of the detection wheel 69a returns to the state in which the detection wheel 69a abuts on the rope 100 due to the elastic restoring force of the spring 54, the limit switch 75a returns and turns off, and the limit switch 73a again releases the cable. A pre-detection operation is performed.
In this way, when the pontoon 80 passes the detection wheel 69a or the detection wheel 69b, the detection operation of the detection wheel 69a or the detection wheel 69b to be removed beforehand is electrically avoided, and the detection wheel 69a on one side or By performing the pre-detection of the removal of the cord 100 at 69b, a more stable pre-detection operation of the removal of the cord can be performed.

In this way, the detection wheel for detecting the de-advancement in advance is centered on the two axes of the axis on which the swivel arm is pivotally attached and the axis of the detection beam pivotally attached to the swivel arm. The movement of the transporter is performed by allowing the gripping machine to pass through the detection wheel by the structure that rotates up and down in the direction and right and left in the direction perpendicular to the cableway line direction, while pre-detecting the unraveling from the rope receiving device. It is intended to ensure the safety of.

Further, similarly to the first embodiment, the respective detection wheels 69a and 69b are attached to the spring 5 from diagonally above.
4 and 54 are pressed to press the cord 100, and the action of preventing the cord 100 from being detached from the flanges 35a, 35a of the receiving rings 35, 35 ,. It is designed to serve as a function of performing pre-detection of the rope.

[0037]

EFFECTS OF THE INVENTION The deraising detection device used in the conventional cableway equipment has a structure in which the decoupling of the line is detected after the line is disengaged from the line receiving device and the operation of the carrier is stopped. . However, even if the operation was stopped after the rope was removed from the rope receiving device, it did not stop immediately, leaving some danger. In the present invention, the position at which the cord passes the cord catching device is constantly monitored by contacting the detection wheel with the cord, and if the cord passing position with respect to the cord catching device is deviated by a predetermined amount or more. In this case, the detection wheel idles following the deviation of the rope, thereby actuating a detection switch such as a limit switch to stop the operation of the carrier. Further, the whole detection wheel is configured to be movable up and down in the direction of the cableway line through the swing arm and the detection beam, so that the gripping machine can pass through the detection wheel. In this way, the detection wheel comes into contact with the cord or the gripping device to detect it, so that the removal of the cord from the cord receiving device can be detected in advance and reliably, and the operation of the carrier can be stopped. Preventing accidents due to derailment has the effect of further improving the safety of the cableway. Further, the detection wheel is biased by a spring obliquely from above so as to press the cord, which also has the effect of preventing the cord from being detached from the cord of the cord receiving device.

[Brief description of drawings]

FIG. 1 is a side view showing a four-wheel receiving device equipped with a pre-extraction detection device according to a first embodiment of the present invention.

FIG. 2 is a front view showing a four-wheel receiving device equipped with the pre-extraction detection device of the first embodiment.

FIG. 3 is a partial cross-sectional front view illustrating the relationship between a swing arm and a spring of the pre-detachment detection device according to the first embodiment.

FIG. 4 is a side view in partial cross-section illustrating the structure of the swivel arm and the detection beam of the pre-detachment detection device according to the first embodiment.

FIG. 5 is a front view illustrating a state in which the gripping machine of the carrier is passing through the pre-detachment detection device according to the first embodiment.

FIG. 6 is a side view illustrating a state in which the gripping machine of the carry device is passing through the pre-detachment detection device according to the first embodiment.

FIG. 7 is a front view illustrating a state in which the de-advancement detection device according to the first embodiment detects de-advancement in advance.

FIG. 8 is a sequence circuit diagram of the de-advancement detection device according to the first embodiment.

[Fig. 9] Fig. 9 is a side view showing a four-wheel receiving device equipped with a pre-detachment detecting device according to a second embodiment of the present invention.

FIG. 10 is a front view illustrating the relationship between a limit switch and a tip bar for detecting the turning motion of the turning arm of the pre-detachment detection device according to the second embodiment.

FIG. 11 is a sequence circuit diagram of the de-advancement pre-detection device according to the second embodiment.

[Explanation of symbols]

 1 Pre-detection device 2 Support arm 2a Upper plate 2b Arm part 2c Base plate 2d Boss 3 Push metal fitting 3a Screw part 3b Guide part 4,4, ... Nut 5 Spring 6 Shaft 6a Flange 7 Key plate 8, 8, ... Bolt 9 Revolving arm 9a Boss 9b Spring seat 9c Plate 10 Spring guide 11,11 Bolt 12 Flange 13,13, ... Bolt 14 Beam shaft 14a Shaft core 15 Bearing 16,16 Color 17 Flange 18,18 Bolt 19 Detection beam 19a Boss 20 Detection wheel 20a Peripheral part 21 Rotating shaft 22 Tip bar 22a Long groove 23 Bracket 24 Limit switch 24a Working part 25 Brackets 26, 26, ... Tightening bolts 30 Four-wheel receiving device 31 Four-wheel beam (main beam) 32 Four-wheel beam shaft 33, 33 two-wheel beam 3a, 33a Prevention plate 34, 34 Two-wheel beam shaft 35, 35, 35, 35 Receiving wheel 35a, 35a, ... Flange 36, 36, 36, 36 pin 37, 37 Retaining bracket 38 Retaining bracket 39, 39, 39,39 Adjusting bolts 40,40 Clamping plates 41,41,41,41 Tightening bolts 42,43 Arrows 50 Pre-detection device 51 Support arms 51a, 51a Upper plates 51b, 51b Arm parts 52,52 Push metal fittings 52a, 52a screw part 52b, 52b guide part 53, 53, ... nut 54, 54 spring 55, 55 shaft 55a, 55a flange 56, 56 key plate 57, 57, ... bolt 58, 58 swivel arm 58A, 58B swivel arm 58a, 58a Boss 58b, 58b Spring seat 58c, 58c Plate 59, 59 Spring guide 60,60, ... Bolt 61,61 Flange 62,62, ... Bolt 63,63 Beam shaft 64,64 Bearing 65,65 Color 66,66 Flange 67,67, ... Bolt 68,68 Detection beam 68a, 68a Boss 69a, 69b Detection wheel 70, 70 Rotating shaft 71a, 71b Chip bar 72, 72 Bracket 73a, 73b Limit switch 74a, 74b Chip bar 75a, 75b Limit switch 76 Bracket 77, 77, ... Tightening bolt 78, 79 Arrow 80 grip Rope machine 81 Grip part 82, 82 Tongue 90 Strut arm 100 Rope 100a Normal position 100b Abnormal position 101 Vertical line L Limit switch La, Lb, Lc, Ld Limit switch M Magnet Ma, Mb Magnet

Claims (1)

[Claims] 1. A rope receiving device for movably supporting and guiding a rope in a ropeway, wherein a rotation shaft pivotally rotatably attached to a detection wheel whose peripheral portion abuts the rope is allowed to rotate freely. Being supported, the detection wheel rotates following the movement of the rope, and the rotation shaft and the detection wheel idle while following the displacement of the movement position of the rope relative to the rope receiving device. The pre-detection device for detecting the removal of cords from the cord receiving device in advance.