JPH10181584A - Cable way transporting equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple and directly reliable cable way transporting equipment to measure the clamp torque or moment value of a clamp device. SOLUTION: In a tractive transporting type cable. way transporting equipment particularly such as cable car or chair lift which operate continuously, a cable way transporting equipment is provided which is provided with a clamp device capable of engaging or disengaging a cargo for connecting or disconnecting from a cable 3. Also each clamp device 1 is provided with a measuring means to measure the clamp condition of the cable 3 by the clamp device 1. In addition, the measuring means is provided with a mechanical movable part 34 which is moved drivingly when a control lever 11 is returned to the closed position of the clamp device 1. The position at which the movable part 34 arrives when the control lever 11 reaches the closed position corresponds to the degree of deformation of the control lever 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a traction-carrying cableway transport system, such as a cable car or a chair lift, which operates continuously in a loop between two stations, and more particularly to connecting a load to a cable. For transporting a cableway with a disengageable clamping device for a vehicle.

[0002]

2. Description of the Related Art In cableway transportation facilities, generally each of the disengageable clamping devices for coupling a load to a cable includes a pair of grips for gripping the cable when the clamping device is in a closed position. A control lever for opening and closing the clamp device, the control lever having one end forming a movable grip, and an elastic device for driving the control lever of the clamp device from an open position to a closed position of the clamp device. I have.

[0003] Such equipment has been known for some time,
For example, it is described in French Patent No. 2,724,357, French Patent No. 26,970,56 and European Patent No. 5,825,528.

[0004] The installation according to the invention is further a control ramp extending along the travel path of the clamping device and cooperating with said control lever when passing through the clamping device, wherein the clamp device is opened and a load is applied to the elastic device. And a control means for relaxing the load when the clamp device passes through the control lamp and returning the clamp device to the position where the cable is clamped, and measuring means for measuring the clamped state of the cable by the clamp device. .

[0005] Efficient clamping of the cables by the clamping device secures cableway transport equipment, especially cable cars or chair lifts, having a disengageable clamping device that opens on arrival at the station and closes on departure. And it is one of the main factors for proper operation.

[0006]

An already known first type of installation of the type described above checks the elastic clamping force by applying an opposing force to the control lever that is slightly less than the normal clamping force. Is what you do. The movement of the control lever by the action of this small force is interpreted as a lack of sufficient clamping by the clamping device.

[0007] Such a first type of installation, however, has the disadvantage that it operates all or nothing and does not directly measure the clamping force exerted on the cable by the grip.

A second type of equipment, known in the prior art, comprises a cable simulated gauge closed by a clamping device and measuring the clamping force with a sensor incorporated in the gauge. .

According to this method, it is possible to continuously measure the wear state of the clamp device, but it is not easy to realize such an inspection device. Also, the safety exerted by the cable after the measurement is not always equal to the value measured by the gauge, so that the safety is incomplete.

Another known type of installation comprises a clamping device having a test spring that acts on the clamp spring and moves when the force of the clamp spring is too low. Such a mechanism is built into the clamping device and the information has to be transmitted to a given station.

Another type of equipment already known comprises an optical, inductive, magnetic, infrared or laser beam proximity detector and one or more of the control levers of a disengageable clamping device. The position of the reference point can be detected.

The position of these reference points on the control lever of the disengageable clamping device determines the level of deformation of this control lever, ie the value of the clamping force, torque or moment exerted by the disengageable clamping device on the cable. Can be guessed.

[0013] The deformation level is compared with a threshold value, and if one of the threshold values is deviated, the equipment is stopped.

In such a device, the signal transmitted by the detector is such that if the position of the clamping device and the cross section of the cable are completely constant and all clamping devices are identical, the deformation of the control lever is effective. It is an indicator. However, in reality, such a state is rare, and it is necessary to perform the second measurement in order to correct the first measurement and eliminate an error particularly regarding a change in the position of the clamp device.

In such a device, the detection of the reference point on the control lever is hindered by the presence of snow or grease.

The present invention has been made in view of the above points, and provides a simple and direct reliable cableway transportation facility for measuring the value of a clamping torque or a moment of a clamping device. The purpose is to do.

[0017]

SUMMARY OF THE INVENTION The present invention is a disengageable clamp for connecting a load to a cable in a continuously operating, particularly a towed cable way transportation facility such as a cable car or chair lift. Devices, each clamping device comprising a pair of grips for gripping the cable when the clamping device is in a closed position;
A control lever for opening and closing the clamp device, the control lever having one end formed as a movable grip; and an elastic device for driving the control lever of the clamp device from an open position to a closed position of the clamp device. And a control ramp extending along the travel path of the clamp device and cooperating with the control lever when passing through the clamp device, wherein the control device opens the clamp device to release the elastic device. And a control means for reducing the load and returning the clamp device to the closed position when the clamp device passes the control lamp, and measuring means for measuring a clamped state of the cable by the clamp device. And the measuring means returns when the control lever returns to the closed position of the clamp device. Wherein the position at which the movable component reaches when the control lever reaches the closed position corresponds to the degree of deformation of the control lever. To provide cableway transportation equipment.

Other objects and advantages of the present invention will be understood from the following description of an embodiment given by way of non-limiting example, with reference to the accompanying drawings, in which:

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the accompanying drawings, a disengageable clamp device 1 has an elongated clamp device body 2 extending to a position where it is connected to a cable 3. Here, the cable 3 extends at least in the lateral direction with respect to the elongated clamp device body 2.

The clamping device body 2 supports a hinge 4 of a suspension 5 which is directed downward and supports a car or a chair. In the clamping device body 2, a pair of grips 6, 7 extend on one side, and these grips 6, 7 form a jaw 8 for clamping the cable 3.

In the embodiment shown, one grip 6 is a fixed grip, the other grip 7 is a movable grip, the fixed grip 6 is arranged on the inside and the other grip 7 is on the outside of the clamping device. Rotate toward. These grips 6, 7 are adapted to grip the cable 3 from above.

The grip 6 is fixed, and the other grip 7
Is swingably attached to a longitudinal pin 9 supported by the clamp device body 2.

The structure of the clamping device 1 may differ from the structure shown.

Some cable clamp jaws are:
A single clamping device body may be located on the same side of the clamping device body or on both sides of the clamping device body.

When the cable 3 is clamped by the grips 6 and 7, the pins 9 extend in parallel above the cable 3.

The movable grip 7 is provided at the end 1 of the control lever 11.
It is firmly attached to zero.

The control lever 11 is rigid and made of a single component and has a predetermined length. The control lever 11 is
When swinging about the pin 9 in parallel with a plane P corresponding to the plane of FIGS. 1 and 2 which is substantially perpendicular to the cable 3, engagement and disengagement with the cable are performed.

A pin 13 extending substantially in the horizontal direction is attached to the end 12 of the control lever 11 on the opposite side of the movable grip 7, and the control cam 14 of the lever 11, that is, the movable grip 7
To rotate. The control cam 14 cooperates with a control ramp (control ramp) (not shown) which forms part of the installation.

The clamping device body 2 of the clamping device 1
Rollers 16, wheels and disk drive transoms which cooperate with the complement of equipment
nsom) 17.

The rollers 16 and the transom 17 can move the clamping device 1 disengaged from the cable 3 on and along a transport rail (not shown) forming part of the installation.

The control lever 11 is subjected to a constant stress towards the clamping position of the cable 3 by at least one compression spring or, more generally, by an elastic stress element.

In the illustrated embodiment, a pair of springs (elastic devices) 19, 19 'inclined with respect to each other
The control lever 11 returns to the clamping position of the cable 3 after the cam 14 has passed the control ramp.

When the cam 14 passes the control lamp, the lever 11 is positioned so that the clamp device 1 is disengaged and the grips 6 and 7 are released.

In the illustrated embodiment, the spring 1
One end of 9, 19 'or its adjacent support is a grip 7,
On the same side as 8, it is hinged to the body of the clamping device 1.

In the present embodiment, the springs 19, 1
The other end 21, 21 ′ of 9 ′ or its adjacent support is hinged to control lever 11 near control cam 14.

In the accompanying drawings, the control cam 14 flips up the control lever 11, and the cable 3 is gripped between the grips 7, 8 by the action of the springs 19, 19 '.

The clamping device 1 is guided by transport rails when a chair or cable car of a chair lift passes by a departure station or an arrival station.

Hereinafter, means for confirming, measuring and inspecting the force by which the disengageable clamp device 1 is clamped by the cable 3 will be described.

In the following, the term deformation of the lever 11 refers to the spring 19, 1 when the cable 3 is clamped.
It is used to describe the elastic deformation of lever 11 corresponding to a moderate amount of deformation exerted on end 12 of lever 11 by the action of 9 'and / or other devices such as actuators.

The clamping device 1 is provided with a rigid part 22 whose end 23 is firmly attached to the control lever 11 in a region 24.

In the embodiment shown, for example, the area 24 to which the bolt is attached is located at one-third of the total length of the lever 11 and when the clamping device 1 is in the normal position. Below and near the grips 6,7.

In this area 24, the clamping device 1
Is closed, and the amount of deformation of the lever 11 in a state where the cable 3 is clamped is small.

In the embodiment shown, this part 22 has a shape similar to a stirrup.

The other end 25 of the stirrup-shaped part 22 is arranged above the control lever 11 and
I support.

The adjusting device 26 first includes an O-ring washer 27.

The O-ring washer 27 is provided with an adjusting screw 28 attached to the end 25 of the stirrup-shaped part 22 and the position of the screw 28, that is, the O-ring washer 27, is fixed to the stirrup-shaped part 22. It is associated with a nut 29 that can be used. The adjusting screw 28 and the nut 29 constitute a calibrating means for calibrating the threshold value of the deformation of the control lever 11 and the threshold value of the clamping force of the cable 3.

A part 30 of the O-ring washer 27 is fitted in a groove 31 provided in a base 33 of a movable part 34.

This part 34 is a boss 36 of the control lever 11.
Is hinged to a rotating pin 35 disposed at the center.

The boss 36 of the control lever 11 is
1, and supports the rotating pin 35 of the movable part 34, but is separated from the groove 31 in which the portion 30 of the O-ring washer 27 is fitted.

The part 22 is therefore not rigidly attached at its end 25 to the control lever 11.

When the control lever 11 returns to the position corresponding to the closing of the disengageable clamping device 1 and the clamping of the cable 3, the movable lever 11 approaches the fixed end 25 of the part 22 and pinches the movable part 34. Rotate around 35.

FIG. 2 shows three different positions of the movable part 34.

The position A corresponds to the normal position of the control lever 11 where the cable 3 is clamped.

With the nut 29 arranged on the screw 28,
A device for measuring the clamp state of the disengageable clamp device 1 can be calibrated.

This calibration takes into account, in particular, the elastic deformation of the control lever 11 in the clamping position and the elastic deformation by the action of the compression springs 19, 19 'and other devices such as actuators corresponding to these compression springs.

The position B of the movable part 34 corresponds to an allowable deformation of the control lever 11.

The position C of the movable part 34 corresponds to an unacceptable deformation of the control lever 11, ie a deformation that is too small. This deformation does not correspond to a sufficient clamping force of the cable 3.

The position of the part 34 can be checked by various devices.

This test is preferably a visual test.

This test includes both positive and negative ones. In other words, it is possible to detect that the grips 6 and 7 of the clamp device 1 are applying a correct clamping force to the cable 3 and that the grips 6 and 7 are applying an incorrect clamping force.

In the illustrated embodiment, jig 3
Numeral 7 prevents passage of the disengageable clamp device 1 when the position of the movable part 34 is smaller than the allowable minimum position B.

The part 22 has sufficient rigidity so that the rotation of the movable part 34 about the pin 35 is effected solely by the movement and deformation of the control lever 11 or mainly by the movement and deformation of the control lever 11. Must be prepared.

The invention is preferably applied to a disengageable chair lift or cable car clamping device.

However, the invention is of course also applicable to other types of clamping devices, in particular clamping devices which are fixedly connected to a cable or which are closed by the action of loads, and also bicable installations. It is.

[Brief description of the drawings]

FIG. 1 is a view showing a means for inspecting a clamped state of a cable by a clamp device according to an embodiment of the present invention.

FIG. 2 is a partially detailed view of the clamp device shown in FIG.

FIG. 3 is a partial perspective view of the clamp device shown in FIGS. 1 and 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamp apparatus 2 Clamp apparatus main body 3 Cable 4 Hinge 6, 7 Grip 8 Jaw 11 Control lever 14 Control cam 16 Roller 19, 19 'Spring 28 Screw 29 Nut 34 Movable part 35 Pin 37 Jig

Claims (6)

[Claims] The invention relates to a continuously operated towed cable way transport facility, in particular a cable car or chair lift, comprising a disengageable clamping device for connecting a load to a cable (3). The clamp device (1) includes a pair of grips (6, 7) for gripping the cable (3) when the clamp device (1) is in a closed position, and a control for opening and closing the clamp device (1). A control lever (11) having one end (10) formed as a movable grip (7), and a control lever (11) of the clamping device (1) being connected to the clamping device (1). And a resilient device (19, 19 ') for driving from an open position to a closed position of the clamping device (1). A said control lever (11) cooperating with the control ramp during the passage of the lamp device (1), the elastic device by opening the clamping device (1) (19, 19 ')
And a control ramp for releasing the load and returning the clamp device (1) to the closed position when the clamp device (1) passes through the control lamp, and the cable ( Measuring means for measuring the clamp state of 3), wherein the measuring means is driven and moved when the control lever (11) returns to the closed position of the clamping device (1). The control lever (1) includes a part (34).
1) reaches the closed position and the movable part (3)
4) The cable way transportation facility, wherein the position reached by the control lever corresponds to the degree of deformation of the control lever (11). 2. The movable part (34) has an end (33).
Is a pin (3) supported by the control lever (11).
The cableway transportation equipment according to claim 1, wherein the cableway transportation equipment is rotatable around (5). 3. The clamping device (3) when the position of the movable part (34) is below a minimum position corresponding to a threshold value of the deformation of the control lever (11) and a threshold value of the clamping force of the cable (3). 1) further comprising means (37) capable of blocking the passage of 1), wherein said threshold is
The cableway transportation equipment according to claim 1 or 2, wherein the cableway transportation equipment is set in advance according to (8, 29). 4. The calibration means (28, 29) has the other end (23) supported by the free end (25) of a part (22) rigidly mounted on the control lever (11). The cableway transportation equipment according to claim 3, wherein 5. The control means for measuring a clamping state of the control lever (11) located near an end (12) of the control lever (11) opposite to the movable grip (7). The cableway transportation equipment according to any one of claims 1 to 4, wherein the cableway transportation equipment is arranged in an area having a large deformation amount. 6. The component (22) is characterized in that its end (23) is firmly attached to a region of the control lever (11) near the movable grip (7) where the amount of deformation of the control lever (11) is small. The cable way transportation equipment according to claim 4 or 5.