JPH0785985B2 - Main spring abnormality detection device for gripping machine of double type single line automatic circulation type cableway - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention constitutes a gripping device in the field of cableway, particularly in a double-type single-track automatic circulation type cableway for transporting using two parallel tow lines. The present invention relates to a device for detecting abnormalities in the main spring of a gripping machine by classifying them or individually.

[Conventional technology]

The automatic circulation type cableway is an endless circulation of a towing line between pulleys and pulleys arranged at both ends terminals (referred to as a stop. The same shall apply hereinafter), and a gripping device in which a carrier is suspended is used as the above towing line. It is well known that it is used for sightseeing in mountainous areas and for transportation in ski resort areas, and it is widely used for transportation by operating a carrier along with circulation operation of a towing line and transporting it. At times, it has been attracting attention as a medium-duty transportation means in cities.

Here, conventionally, generally, only one article is used as a strut for suspending the carrier and one for pulling the carrier, and the capacity of the carrier is generally 4 to 8 persons. Has been implemented.
However, in order to further increase the transportation capacity, a cableway equipment of a type in which a large number of carriers are used and load lines are shared by using two tow lines in parallel has been recently proposed and proposed. This type of cableway equipment is called a double mono-cable cableway (DMC), a double-type single-track automatic circulation type cableway, or a double-branch automatic circulation type cableway, but a unified term is still established. Absent. Here, it is described below using the term of double-type single-line automatic circulation type cableway.

In the conventional single-line auto-circulation cableway with a single tow line, the carrier handles passengers while being transferred at a slow speed along the rails in the terminal, and then uses an acceleration transfer device to reach the same speed as the tow line speed. It is accelerated, and the gripping device grips the single-strand tow and departs into the cableway.

The gripping device used here is generally a spring-type gripping device with the most stable gripping force. If the main spring, which is the source of the gripping force of such a gripping device, is damaged or deteriorated due to aging, the necessary gripping force cannot be obtained due to the lack of resilience of the elasticity. Become. If such a gripping device or a gripping device departs in the cableway line, it may slide in a slope section and cause a serious accident.Therefore, use a device for detecting abnormality of the main spring before the departure. It is detected and if there is an abnormality, departure is blocked.

For the single-track automatic circulation type cableway, a gripping device consisting of one gripping device has been used so far, and a type mainly applied to a chair-type transporter and a gripping device consisting of two gripping devices are used. In some cases, it is mainly applied to passenger car carriers. On the other hand, the presence / absence of abnormality of the main spring is detected as follows. First, when the gripping device is composed of one gripping device, it is natural that the main spring of the gripping device is defective = the gripping device is defective. In addition, when the gripping device is composed of two gripping devices, it is determined that the gripping device as a whole is defective, regardless of which of the constituent gripping devices or main springs is defective. Then, the method of stopping the departure is taken. Such a detection method is appropriate in the case of a single-track automatic circulation type cableway, and many methods have been implemented.

On the other hand, in the case of the double type single line automatic circulation type cableway,
Although a gripping machine that is stretched in parallel and grips each of them is used, it has an equal problem in that the quality of the main spring directly affects the safe operation. However, some gripping devices for use in this type of cableway are being proposed, but examples of construction or operation of this type of cableway are not very practical, except for trial ones. It has not been investigated.

[Problems to be Solved by the Invention]

The double-type single-line automatic circulation cableway uses a gripping device composed of a gripping machine that divides and holds two parallel towed lines, but a gripping device for a cableway of this type that uses a passenger car carrier. Currently, what has been proposed is that the gripping device is generally configured by using two gripping machines for each strut, that is, using a total of four gripping machines. Is.

On the other hand, in order to detect the quality of such a gripping device, it is possible to extend the detection concept or method used in the conventional single-line automatic circulation cableway as it is and to apply it to determine whether the individual gripping device is good or bad. Regardless, the concept of “appropriate” is established if the gripping device as a whole satisfies the required conditions, and it can be considered to be sufficiently appropriate for practical use.

However, depending on the demand, there are the following reasons that the quality of the components of the gripping device is also required.

(A) In the overall design of the double-type single-track automatic circulation type cableway system, the operation in normal times is performed normally with the required safety factor by the two tow lines, and in case of some emergency, For example, there is a case where the complementarity between the two strut lines is required so that the carrier can be held only by the one strut line. When there is such a demand, the presence or absence of abnormality of the gripping device is not only good or bad as a whole, but also the group of gripping machines that share each of the towlines has a proper gripping force. Therefore, it is necessary to detect the presence or absence of abnormality for each group of grippers.

(B) Further, when the number of grippers constituting the gripping device increases, the contribution of each gripper or the breakdown of the division is unknown. For example, even if one of the groups of grippers is defective, it is considered that the group of grippers is supplemented by the force of the other group of grippers and the whole group is judged to be normal, but such a situation should be avoided.

(C) If the number of gripping devices that make up the gripping device increases, if an abnormality is detected, it cannot be determined which gripping device is defective, and the recovery arrangement will be delayed. I want to know if the rigging group is defective.

If there is such a demand, the conventional method for detecting abnormality in the main spring of a single-track automatic circulation type cableway is extended as it is, "There is no abnormality in the gripping device as a whole, and there are no abnormalities in its constituent elements." The deductive inference method is not appropriate, but rather the inductive inference method that "there are no abnormalities in the elements that make up the gripping device, so there is no abnormality in the entire gripping device" .

The present invention aims to provide a detection method or apparatus that responds to the cases where there is a need as described in the above items.

[Means for Solving the Problems]

Corresponding to the above object, the present invention relates to a common technical problem of a gripping device for a double-type single-track automatic circulation type cableway, and a first claim according to the first invention and a second claim according to the second invention. It has become.

The first invention is to detect the quality of the gripping force for each gripping machine group that constitutes the gripping device, that is, to circulate by being wound between pulleys at both ends, and to reciprocate both lines of the cableway line. Using the two tow ropes stretched in parallel and a gripping device that hangs the carrier and commonly grips the two towed ropes, the carrier is moved along with the circular movement of the tow ropes. In a double-type single-track automatic circulation type cableway that operates and transports, the gripping device includes a first gripping machine group consisting of two gripping machines for gripping one strut, and another A second gripping machine group consisting of two gripping machines for gripping one strut, each of the gripping machines being a spring-type gripping machine, It is configured to show the main spring force of the gripping machine to the outside as a positional displacement of the detection piece via a transmission mechanism, and detect each gripping machine. Each of the first and second lanyard groups is arranged in a different lateral position in the traveling lateral direction of the lanyard device, while on the ground side, each lanyard group is arranged. The detection switch is arranged at each position corresponding to the passage of the detection piece of
Configured as a main spring abnormality detection device for the gripping machine of a double-type single-line automatic circulation type cableway, which detects whether or not there is an abnormality in the main spring of the gripping machine that constitutes the gripping device by classifying each group. It was done.

The second invention is to detect the quality of the gripping machine for each gripping machine, that is, to circulate between the pulleys at both ends to circulate and reciprocate the cableway line. Along with the circular movement of the tow lines, two tow lines are each stretched in parallel, and a gripping device is provided for suspending a carrier and commonly gripping the two tow lines arranged in parallel. In a double-type single-track automatic circulation type cableway that operates a carrier and transports, the gripping device includes a first gripping machine group consisting of two gripping machines for gripping one strut. And a second group of gripping machines consisting of two gripping machines for gripping the other one of the tows, each of which is a spring-type gripping machine. It is configured to show the spring force of the gripping machine to the outside as a positional displacement of the detection piece via a transmission mechanism, and the detection piece of each gripping machine. Are arranged at different positions in the lateral direction of the gripping device, and on the other hand, on the ground side, a detection switch is arranged at a position corresponding to each passage of each of the detection pieces. The detection of abnormalities in the main spring of the gripping device that composes the gripping device is performed separately for each gripping device to detect abnormalities in the main spring of the gripping device for a double-type single-track automatic circulation type cableway. It is configured as a device.

[Action]

The main spring abnormality detection device of the present invention detects the quality of each gripping machine group that constitutes the gripping device or each individual gripping machine.

The gripping device of the gripping device used for this device is a spring-type gripping device.
In this gripping machine, a main spring and a detection spring are arranged in a series spring relationship, and a spring case is interposed between the main spring and the detection spring. When the main spring is defective, the spring case is displaced in a floating manner, and this movement is externally shown as a positional displacement of the free end of the detection piece connected to the spring case.

On the other hand, on the ground side, a detection switch is provided on the path through which the detection piece is displaced and passes when the main spring is defective.

In the case of the first invention of the present invention, the detection pieces of the gripping machines of the same group constituting the gripping apparatus are provided at congruent positions with respect to the moving direction of the gripping apparatus, and the The detection pieces should be separated from each other. Two detection switches are provided at positions separated from each other corresponding to each gripping rope group.
Therefore, it is possible to discriminate at least which gripping machine group is defective according to which detection switch is activated.

In the case of the second invention of the present invention, a detection piece is provided at a different position for each gripping device that constitutes the gripping device with respect to the traveling direction of the gripping device, and each of the detection switches is also provided. Are provided at different positions corresponding to the detection pieces. Therefore, it is possible to discriminate which gripping machine is defective depending on which detection switch is activated.

[First embodiment]

 The present embodiment relates to the first invention of the present application.

FIG. 1 shows the entire gripping device 2. Support
1a and 1b are stretched in parallel in two rows, and these tow lines 1a and 1b
There are gripping machines 10a, 10a and 10b, 10b at both ends, and the gripping portions 4a, 4a or 4b, 4b are designed to grip the strut cord 1a or 1b, respectively. Here the rigging machines 10a, 10a and 10b, 1
0b are connected to each other by a connecting member 5. The connecting member 5 is formed by integrally connecting the triangular members 6a and 6b having an inverted triangular frame shape with the lateral member 7.

In this way, the rigging machines 10a, 10b are fixed to each other by the triangular member 6a, so that the rigging machine group 3a is configured through the triangular member 6a so that the strut cords 1a are commonly gripped. Has been done. Similarly, the gripping machines 10b, 10b are the same as the triangular member 6 described above.
Therefore, they are fixed to b, respectively, so that the gripping machine group 3b is configured via the triangular member 6b so that the strut cords 1b are commonly gripped. Suspenders 8a and 8b are pivotally suspended to the triangular members 6a and 6b, respectively. This suspension machine 8a, 8b
A transporter 8A is suspended below. Each gripping machine 10a,
Although not directly related to the configuration of the present invention, 10a, 10b, 10b are respectively provided with grip-and-release rollers 9, 9, 9, 9 for performing grip-and-release.

The structure of such a gripping device 2 is basically the same as that proposed in Japanese Patent Application No. 62-295834 "Passenger car suspension structure and gripping device of double-track automatic circulation cableway".

Next, the gripping device 10a or 1 which is a component of the gripping device 2
0b will be described. Since all of these grippers 10a and 10b have the same configuration, the gripper 10
As described below.

FIGS. 2A and 2B schematically show the gripping machine 10. In FIG. 2 (a), the frame 11 has a first grip 12 which is a fixed grip at one end, a rear wall 13 at the other end, and an inner wall 14 near the hollow. Has been formed.
Moreover, a hole 15 is penetrated through the rear wall portion 13 and a hole 16 is formed through the inner wall portion 14.
Are penetrated, and these holes 15 and 16 are located concentrically.

The second grip 17 is a movable grip and is pivotally mounted so as to be rotatable about a pin 18, so that the first grip 12 and the second grip 17 support the tow line 1. To grab On the other hand, a link 20 is pivotally connected by a pin 19 to the portion of the second grip 17 extending in a substantially horizontal direction, and the link 20 is further pivotally connected by a pin 21 to a rod 22.

The basic shape of the spring case 23 is a cylindrical shape with a flange, one end of which is open and the other end of which is a closed portion 24. The spring case 23 is in contact with the rear wall portion 13 at a step 25 and is a hole in the rear wall portion 13. It is penetrated in 15 by loose insertion. Further, a hole 26 is penetrated through the closed portion 24. Further, flanges 27a and 27b are extended and fixed to the outer side of the cylinder on the spring case 23.
A protrusion 28 to which a pin 33 described later is to be fixed is formed near 27b.

On the other hand, the rod 22 is connected to the link 20 by the pin 21 as described above, is slidably penetrated through the hole 16, and is formed with a step 22a. The extension hole 26 is slidably passed through. Here, the main spring 29, which should be the elastic force source for gripping the towline 1, is the rod 22.
Is swung outward and is inserted between the step 22a and the closing portion 24.

On the other hand, the plurality of springs 30a and 30b are for detection and are inserted between the flange 27a or 27b and the rear wall portion 13, respectively. Therefore, the springs 30a and 30b are arranged in parallel with each other, and a spring group for detection including the springs 30a and 30b having the parallel structure and the main spring 29 for contributing to the gripping force. Means a series spring that is located between the step 22a and the rear wall portion 13 with a spring case 23 slidably interposed therebetween. Here, the main spring 29 is a spring having a large elastic force to contribute to the gripping force, while the spring 30
It is determined that a and 30b have a smaller elastic restoring force than that of the main spring 29 for detection.

Here, the detection piece 31 as a transmission mechanism for showing the elastic restoring force of the main spring 29 to the outside is one that is pivotally attached to the frame body 11 by the pin 32, and is attached to the protrusion 28 by the pin 33. It is pivotally connected and its lower end forms a free end 34. Therefore,
The detection piece 31 is configured to pivot about the pin 32 as the spring case 23 moves left and right. The hole 22b near the tail end of the rod 22 is a portion connected to the lever of the grip and release roller, but is not shown because it is not directly related to the configuration of the present invention.

FIG. 2A shows the main spring 29 in a normal state, in which the elastic restoring force of the main spring 29 presses the step 22a of the rod 22, and the pin 21, the link 20, and the pin 19 are used. Second sushi
The pin 17 is rotated about the pin 18, and thus the pin 17 is gripped in cooperation with the first grip 12. At this time, the main spring 29 also presses the closing portion 24 of the spring case 23, but when the main spring 29 exerts a normal elastic force, a plurality of springs 30a, 30
The spring case 23 is pushed in the direction of the arrow 35a so that the step 25 abuts the rear wall portion 13, and the springs 30a and 30b are the flanges 27a or 27b.
And the rear wall portion 13 are in a compressed state and are in equilibrium.

Therefore, since the spring case 23 and the pin 33 associated therewith are located at the position closest to the arrow 35a, the detection piece 31 rotates about the pin 32 in the direction of the arrow 36a, and the free end 34 in the figure. It is in the state of descending leftward, that is, in the G position.

Next, FIG. 2A shows a case where the main spring 29 has, for example, a broken portion 29a and does not exert a required elastic force. Even in such a case, in general, the main spring 29 presses the rod 22 by the residual elastic force held by the main spring 29, and as in the case described above, the support cord 1 is temporarily gripped. In many cases, the quality of the spring cannot be determined apparently. However, there is a lack of gripping power, and it is dangerous to continue operating. In this state, the main spring 29 has the step 22
While pressing a, the spring case 23 is being pressed, but since the elastic force is reduced, the spring 30a,
The spring group consisting of 30b extends until it balances with the remaining elastic force of the main spring 29.
Move in the direction of b. Therefore, the detection piece 31 rotates about the pin 32 in the direction of the arrow 36b, and the free end 34 deviates to the right downward state in the figure, that is, the NG position.

As described above, the gripping machine 10 of this type will be described as an example in which the quality state of the main spring 29 related to the gripping force is shown to the outside as a lateral displacement of the free end 34 of the detection piece 31. This gripping machine is disclosed in Japanese Patent Application Laid-Open No. 62-50265, “Method for detecting main spring failure of cableway gripping machine” and Japanese Patent Application Laid-Open No. 62-50.
It has already been proposed by Japanese Patent No. 266, "A main spring defect detecting device for a cableway gripping machine".

This pontoon machine is an example of a device that shows the quality of the main spring to the outside by the position deviation of the detection piece, but it has the above-mentioned device or other equivalent functions in achieving the object of the present invention. A device may be used, and the present invention is configured as follows.

3A and 3B show the structure of the spring abnormality detecting device in the gripping device 2.

The lanyard device 2 is formed by integrally connecting the lanyard groups 3a and 3b by a connecting member 5. The rigging group 3a is rigging 10
a, 10a are connected via the triangular member 6a of the connecting member 5, and similarly, the gripping machine group 3b is connected to the gripping machines 10b, 10a.
b is connected via a triangular member 6b. The individual grippers 10a, 10a and 10b, 10b are the grippers in the above description.
It is equivalent to 10, and the rigging machines 10a and 10a grip the lanyard 1a in common, and the rigging machines 10b and 10b grip the lanyard 1b in common. Further, each gripping machine 10a, 10a, 10b, 10b is provided with a detection piece 31a, 31a, 31b, 31b, respectively, the respective main spring 29, 29, 29,
29 shows the G position which is good.

The hanger 41 is fixed to, for example, a mechanical beam 42 or the like in the terminal and is hung so that a beam 43 is suspended and fixed. The hanger 41
The beam 43 and the like are located in the terminal, and other devices for gripping the gripping device 2, rails, transfer devices, guide wheels for the towing lines 1a, 1b, etc. are also provided as needed. Although it is attached and supported, in this figure, the illustration of parts that are not directly related to the expression of the function of the present invention is omitted.

Here, detection switches 44a or 44b are provided at both ends of the beam 43, respectively, and these detection switches 44a and 44b are the main springs 29 and 2 of the gripping machines 10a, 10a or 10b, 10b.
Detection piece 31a, 31a or 31b, 31 when 9, 29, 29 is not normal
It is arranged corresponding to the NG position where b should pass.

In the plan view of FIG. 3 (a), the gripping device 2 has an arrow 45a,
Or, it is assumed to be proceeding in the direction of 45b. The arrow 45a shown by the solid line is a passage path of the detection pieces 31a, 31a of the pontoons 10a, 10b when the detection pieces 31a, 31a are in the G position, and the arrow 45a indicates the detection switch 44a. Since it does not pass through the position, it does not abut and is not detected, so that it is determined that the main springs 29, 29 of the gripping machines 10a, 10a of the gripping machine group 3a are normal. Similarly, the detection pieces 31b, 31b
The arrow 45b, which is a passage route when G is in the G position, does not pass the detection switch 44b position, so the detection switch 44b
Therefore, the main springs 29, 29 of the gripping machines 10b, 10b of the gripping machine group 3b are determined to be normal.

Then, if any of the lanyards, for example the lanyard group 3a
When one of the gripping machines 10a has a main spring abnormality as shown in FIG. 2 (a), the detection piece 31a (31a) tilts to the NG position. As the gripping device 2 advances, the detection piece 31a advances along the arrow 46a shown by the dotted line, so that the detection piece 31a comes into contact with or is detected by the detection switch 44a, whereby at least the gripping machine group 3a is detected. It is determined that one or both of the main springs 29, 29 of the gripping machine 10a, 10a is abnormal. The same applies to the other lanyard group 3b.

The detection switch used in this way is a limit switch,
Alternatively, a breakable switch can be used. Whichever of the detection switches 44a, 44b is operated, the central monitoring device for cableway operation is used to stop the operation,
It can be determined by indicating which detection switch is activated.

[Second Embodiment] This embodiment relates to the first invention of the present application and is applied to a gripping device of a different type from the above-mentioned case.

As shown in FIGS. 4 (a) and (a), the gripping device 52 is a tug rope.
It is of the type located in the inner area sandwiched between 51a and 51b.

The frame 55 is located in the middle of the support lines 51a and 51b. This frame 55 is provided with gripping machines 60a, 60a and 60b, 60b, and the gripping machines 60a, 60a constitute a gripping machine group 53a for gripping the towing cords 51a in common and grasping them. The ropes 60b and 60b are tow lines 51
A group of gripping machines 53b for commonly gripping b is configured. A suspension machine 58 is pivotally suspended on the frame body 55.
Below the 58, a carrier 58A is suspended.

Grips 60a, 60a, 60b, 60b as components used here
Uses the same basic configuration as the gripping machine 10 shown in FIG.

FIG. 4A shows the relationship between the gripping device 52 and the detection switches 94a and 94b in the terminal. Hangers 91a, 91b are suspended and fixed to, for example, a mechanical beam 92 in the terminal, and beams 93a, 93b cantileverly extend from these hangers 91a, 91b. These hangers 9
Rollers for supporting the tow lines 51a, 51b and other devices necessary for operation are attached to the beams 1a, 91b and the beams 93a, 93b, but devices not directly related to the present invention are not shown.

A detection switch 94a or 94b is arranged on each of the beams 93a and 93b.

On the other hand, the detection pieces 81a, 81a of the gripping gears 60a, 60a constituting the gripping gear group 53a respectively project downward so as to be pivotable and take the G position shown by the solid line in the figure. This shows that the main springs (not shown) of the machines 60a, 60a are normal. If one or both main springs of the grippers 60a, 60a are abnormal, one or both of the detection pieces 81a, 81a tilt to the NG position shown by the dotted line in FIG. 4 (a),
In this state, when the detection switch 94a (NG) position at the NG position is passed, the detection switch 94a (NG) is contacted, and at least one or both of the gripping machines 60a and 60a of the gripping machine group 53a are abnormal. Is detected.

Similarly, in the gripping machine group 53b, the detection pieces 81b and 81b are at the G position shown by the "solid line", but when the main spring abnormality occurs, the NG position shown by the dotted line in Fig. 4 (a). And is detected by the detection switch 94b (NG).

Thus, at least the group of rigging machines 53a or 53b
An abnormality can be detected for each.

[Third Embodiment] This embodiment relates to the second invention of the present application.

Also in the case of this embodiment, the overall structure of the gripping device 2'is basically equivalent to that shown in the first illustration. Gripping machine 10 used for this
For a ', 10a', 10b 'and 10b', the second one shown in the above embodiment and the fifth one shown below are used.

The fifth one is basically the same as the first one described above, and only the part relating to the detection piece is different. Therefore, the same symbols are given to the portions which are completely equivalent to those in FIG.

The main spring 29 is similar to the above case in that it has a series relationship with the springs 30a and 30b with the spring case 23 interposed.
Here, a protrusion 28 'extends from the spring case 23 in the lateral direction to be slightly longer. The frame 11 'differs from that shown in FIG. 2A only in the mounting position of the pin 32', but a detection piece 31 'is pivotally attached to the pin 32' of the frame 11 '. . Moreover, the upper portion of the detection piece 31 'is connected to the end portion of the protrusion 28' by a pin 33 ', and the lower end forms a free end 34'. The detection piece 34 'in FIG. 5 shows that the main spring 29 of the gripping machine 2'is normal and is in the G position.

The gripping device 2'includes such a gripping machine 10 (10a, 10a ') and 1
It is constructed as shown in FIGS. 6 (a) and (a) by using 0 '(10b, 10b'). The lanyard group 3a 'is lanyard 10a (10)
And the gripping machine 10a '(10') addressed to one, using the triangular member 6
They are connected to each other at a, and are for gripping the towing lines 1a in common. Also other rigging group 3
b'represents one gripping machine 10b (10) and one gripping machine 10b '(10'), which are connected to each other by a triangular member 6b.
This is for gripping the support cord 1b in common. Further, these triangular members 6a, 6b are integrated with each other by the lateral member 7, thus constituting the gripping device 2 '.

Referring to FIG. 6 (a), first, regarding the gripping machine group 3a ', the detection piece 31a of the gripping machine 10a and the detection piece 31a' of the gripping machine 10a 'are displaced in the lateral direction. And the detection pieces 31a, 31a 'are all in the G position indicating that the main springs 29, 29 are normal. Similarly, for the other lanyard group 3b ′, the detection piece 31b of the lanyard machine 10b and the detection piece 31b ′ of the lanyard machine 10b ′ are located laterally offset from each other. The detection pieces 31b and 31b 'show the G position indicating that the respective main springs 29 and 29 are normal.

The hanger 41 'has the same purpose as that of the above-mentioned embodiment, and the beam 43' extends left and right, and the detection switch 44a,
44a 'and 44b, 44b' are provided. That is, the detection piece 31
The detection switch 44a corresponds to a, and the detection piece 31a '
To the detection piece 31b, the detection switch 44a 'to the detection piece 31b, and the detection switch 44b to the detection piece 31b'.
b'corresponds to each. 6A and 6C, the detection pieces 31a, 31a ', 31b, 31b' are all in the G position, so the detection switch 44a in the NG position,
None of 44a ', 44b and 44b' are in contact with or in contact with each other.

That is, in FIG. 6 (a), the gripping device 2'progresses in the direction of the arrow 45a or 45b, and the arrows 45a, 4 shown by solid lines
5a ', 45b, 45b' are the detection pieces when the detection pieces 31a, 31a ', 31b, 31b' are in the G position, respectively.
31a, 31a ', 31b, 31b' are passages, and none of these passages is provided with detection switches 44a, 44a ', 44b, 44b', so that they are contacted or detected. Therefore, the main springs 29,29,2 of the rigging machine 10a, 10a ', 10b, 10b'
All 9 and 29 are determined to be normal.

Next, if any of the lanyards, for example, lanyard group 3
An abnormality occurs in the main spring 29 of one of the a '
If the detection piece 31a '(31') is tilted to the NG position, the detection piece 31a 'advances along the arrow 46a' shown by the dotted line as the gripping device 2'progresses, so that the detection switch 44a ' It comes into contact with or is detected. In this state, as clearly shown in FIG. 6 (c), the detection piece 31a 'at the NG position shown by the chain line contacts or is detected by the detection switch 44a'. Even when the other detection pieces 31a, 31b, 31b 'are tilted to the NG positions shown by the chain lines, the corresponding detection switches 44a, 44b, 44b' similarly detect.

In this way, the main spring failure is detected for each individual gripping machine 10a, 10a ', 10b, 10b', and this detection signal is transmitted to the central position of the cableway operation, and when any one or more failures are detected, the cableway is detected. It is possible to show which of the gripping machines is abnormal by the indicator light or to indicate on the CRT screen while stopping the operation of.

[Fourth Embodiment] This embodiment relates to the second invention of the present application, and is applied to the same gripping device as in the case of the second embodiment.

Although not specifically shown, the gripping device is located in the inner region of the two strut cords, and the first gripping gear group for gripping the first strut cord is shown in FIG. Use one of the grippers shown in (a) and FIG. Similarly, in the second group of lanyards for grabbing the second towline, FIG. 2 (a) and FIG.
Use one of the gripping machines shown in the figure. With this arrangement, the detection pieces of each gripping machine have different lateral displacements or phases of the passing position with respect to the signal direction of the gripping device. Therefore, four detection switches corresponding to this are used. By arranging them, it is possible to individually discriminate which of the main springs of the gripping machine is defective, and this is clear by analogy with the third embodiment.

[Effects of the Invention] In the double-type single-track automatic circulation cableway, as in the case of the conventional single-track automatic circulation cableway, whether or not there is an abnormality in the main spring of the spring-type gripping machine is a serious requirement directly related to the safety of operation. In detecting the presence / absence of abnormality of the main spring, it is clear that the objective is reached if the quality of the whole gripping device is judged as an extension of the conventional detection method or detection policy, but it is necessary. Some may require a detailed breakdown.

According to the first aspect of the present invention, when there is such a need, the quality of the main spring is sorted for each gripping machine group that shares each one of the towing lines with a relatively simple configuration. Can be detected. Alternatively, according to the second aspect of the present invention, the quality of the main spring can be separately detected for each individual gripping machine.

Therefore, when a complementary design is required so that when one of the two parallel tow lines of the double-type single-line automatic circulation type cableway loses its function, the other one can hold the carrier at least. Therefore, it is necessary to detect pass / fail for each gripping rope group that shares each of the tow lines, like the device of the present invention, and the device of the first invention is preferable.

Further, if necessary, by detecting the quality of the main spring for each individual gripping machine of the second invention of the present invention, the defective gripping machine can be identified quickly, and an early response can be made. Action can be taken.

Therefore, the device of the present invention greatly contributes to the safe operation of the double-type single-track automatic circulation type cableway.

[Other Embodiments]

The following embodiments are included within the scope described in the specification of the present invention.

(A) The first and second lanyard groups constituting the lanyard device are arranged so as to face the outer regions of the two strut cords arranged in parallel, respectively. The main-spring abnormality detecting device for a double-type single-track automatic circulation type cableway according to item 1.

(A) Claims of the above-mentioned claims, wherein the first and second groups of gripping ropes constituting the gripping rope device are arranged in the back direction in respective inner regions of two strut lines arranged in parallel. Item 1
An apparatus for detecting an abnormality in a main spring of a double type single line automatic circulation type cableway according to the item.

(C) Claims according to the above claims, in which the first and second gripping machine groups constituting the gripping device are arranged so as to face the outer regions of the two strut lines arranged in parallel. Item 2
An apparatus for detecting an abnormality in a main spring of a double type single line automatic circulation type cableway according to the item.

(D) Claims of the above-mentioned claims, wherein the first and second gripping machine groups constituting the gripping device are arranged in a back direction in respective inner regions of two strut lines arranged in parallel. A main spring abnormality detecting device for a double-type single-track automatic circulation type cableway according to item 2.

[Brief description of drawings]

FIG. 1 is a perspective view of a gripping device according to a first embodiment of the present invention, and FIG. 2A is a sectional view showing a case where a main spring of a gripping device constituting the gripping device is normal. Fig. 2 (a) is a front view showing a sectional view of a case where the main spring of the gripping device constituting the gripping device is abnormal, and Fig. 3 (a) is the same as the first embodiment of the present invention. The front view showing the relationship between the detection piece and the detection switch, FIG. 3 (a) is a plan view showing the relationship between the detection piece and the detection switch in the first embodiment of the present invention, and FIG. 3 (c).
4A is a front view showing the operation of the detection piece in the first embodiment of the present invention, and FIG. 4A is a front view showing the relationship between the detection piece and the detection switch in the second embodiment of the present invention. FIG. 5 (a) is a plan view showing a gripping device according to a second embodiment of the present invention, and FIG. 5 is a sectional view showing a case where a main spring is normal in another gripping device constituting the gripping device of the present invention. 6A is a front view showing the relationship between the detection piece and the detection switch in the third embodiment of the present invention, and FIG.
Is a plan view showing the relationship between the detection piece and the detection switch in the third embodiment of the present invention, and FIG. 6 (c) is a front view showing the operation of the detection piece in the third embodiment of the present invention. . 1a, 1b …… Supporting cord, 2 …… Grip device, 3a, 3b …… Grip group, 4,4a, 4b …… Grip part, 5 …… Coupling member, 6a, 6b …… Triangle member, 7 ... Lateral member, 8a, 8b ... Suspension machine, 8A ... Transporter, 9 ... Grip release roller, 10a, 10b ... Grip machine, 10 ... Grip machine, 11 ... Frame body, 12 ...... First grip, 13 …… Rear wall, 14 …… Inner wall, 15 …… Hole, 16 …… Hole, 17 …… Second grip, 18 …… Pin, 19 …… Pin, 20-link, 21-pin, 22-rod, 22a-step, 22b-hole, 23-spring case, 24-closed part, 25-step, 26-hole, 27a, 27b ...... Flange, 28 ...... Protrusion, 29 ...... Main spring, 29a …… Break point, 30a, 30b …… Spring, 31 …… Detecting piece, 31a, 31b …… Detecting piece, 32 …… Pin, 33… … Pin, 34 …… Free end, 35a …… Arrow, 36a …… Arrow, 41 …… Hanger, 42 …… Mechanical beam, 43 …… Beam, 44a, 44 …… Detection switch, 45a, 45b …… Arrow, 46a, 46b …… Arrow, 51a, 51b …… Supporting rope, 52 …… Grip device, 53a, 53b …… Grip machine group, 54a, 54b …… Grip part, 55 …… Frame, 58 …… Suspension machine, 58A …… Transporter, 59 …… Grip release roller, 60a , 60b …… Grip machine, 81a, 81b …… Detection piece, 91a, 91b …… Hanger, 92 …… Mechanical beam, 93a, 93b …… Beam, 94a, 94b …… Detection switch, 2 ′ …… Grip cord Device, 3a ', 3b' ... Gripline group, 10 ', 10a', 10b '... Gripline, 11' ... Frame, 28 '... Convex, 31', 31a ', 31b' …… Detecting piece, 32 ′ …… pin, 33 ′ …… pin, 34 ′ …… free end, 41 ′ …… hanger, 42 ′ …… mechanical beam, 43 ′ …… beam, 44a ′, 44b ′ …… Detector switch, 45a ', 45b' ... Arrow, 46a ', 46b' ... Arrow, G ... Normal position, NG ... Bad position

Claims (2)

[Claims] 1. A towing line that is circulated between pulleys at both ends and circulates so as to be stretched in parallel with two reciprocal lines of a cableway line, and a tow line in which a carrier is suspended and the two lines are juxtaposed. In a double-single-line automatic circulation type cableway that transports by operating a carrier together with the circulation movement of the towing lines, using the gripping device that commonly holds the lines, A first group of two lanyards for groping and a second group of two lanyards for groping another one of the lanyards. Each of the gripping machines is a spring type gripping machine, and the main spring resilience of the gripping machine is externally shown as a positional displacement of the detection piece via a transmission mechanism. In addition, the detection piece of each gripping machine is different in the traveling lateral direction of the gripping apparatus for each of the first and second groups of gripping machines. And offset the position will be arranged that,
On the other hand, on the ground side, a detection switch is arranged at each position corresponding to the passage of the detection piece of each gripping machine group, and an abnormality of the main spring of the gripping machine that constitutes the gripping device is detected. Abnormality detection device for main spring of gripping machine of double-type single-line automatic circulation type cableway, which can detect presence / absence separately for each group of gripping machines 2. A towline that is circulated between pulleys at both ends and circulates so as to be stretched in two parallel lines on each of both reciprocating lines of a cableway line,
A double single-line automatic circulation cableway for carrying out transportation by operating a carrier together with the circulation movement of the towline, using a gripping device that commonly holds the two towlines in which the carrier is suspended. In the above-mentioned, the gripping device comprises a first gripping machine group consisting of two gripping machines for gripping one strut, and a second gripping machine for gripping another strut. And a second gripping machine group consisting of individual gripping machines, each of the gripping machines being a spring-type gripping machine and transmitting the main spring force of the gripping machine via a transmission mechanism. The detection piece is configured to be exposed to the outside as a positional displacement of the detection piece, and the detection pieces of each gripping machine are arranged at different positions in the lateral direction in which the gripping device advances. On the other hand, on the ground side, the detection switch is installed at the position corresponding to each passage of each detection piece. Becomes, the main spring abnormality detection device Nigisaku machine double single-wire automatic circulation cableway when taken to detect and fractionated for each Nigisaku machine the presence or absence of abnormality of the main spring of Nigisaku machine constituting the Nigisaku device