CZ154096A3 - Mechanical protection device against a ropeway rope side slipping out of a roller - Google Patents

Abstract

The protection is pivotably located around a horizontal axis and has at least one vertical stop component preventing the lateral movement of the derailing rope. It is formed as a collar arm (3), at the end of which the vertical stop components (1) are arranged, extending against the movement direction of the rope strand (7) running over the rollers (6). The stop components are in rigid connection with a guide rail (2). The collar arm with the stop components engages around the rope from above or below. The stop components are arranged on the extending end of a pivotably located collar arm in the area of the rope rollers or roller battery.

Description

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BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical device for sliding laterally a rigid or movable rope guided on a cableway pulley comprising support or pressure pulleys, the protective device being pivotally mounted about a horizontal axis in the region of the support or pressure pulleys. and includes at least one vertical stop preventing lateral slipping of the rope.

BACKGROUND OF THE INVENTION

DE 319 939 discloses a device in which a guide rail arranged in the decisive direction of travel ahead of the inlet pulley is pressed against the cable by means of a special construction by means of a clamp of the vehicle, thereby raising the rope slip protection device and allowing the clamp to pass. Only conveyor devices containing exclusively support rollers or pressure rollers could be equipped with this, which is not the case with modern single-rope overhead conveyors and chair lifts. In the event of a failure, for example due to icing in the decisive direction of travel due to this arrangement, an inevitable catastrophe is not possible because the clamp cannot pass. However, there is no rope slip protection device installed for the second direction of travel. since the protective device can only be attached behind the pulley.

From the documents AT 164 628 B. CH-475 494. PR 2 389 523 and -US

No. 458,603 A are known arrangements which use a star-selected wheel, a reshonee, to move the rope laterally, which is actuated by the impact of a cable clamp. The invention according to the specification

CH 475 494 cannot prevent the rope from slipping laterally, since the safety pulley le is arranged downstream of the hauling rope, i.e. the shock. This impact is strong in modern conveyor systems and has unpleasant consequences such as noise, vibration and material wear. Creation of a shock and noise dampening device that is not explained in detail. does not appear to be sufficient and satisfactorily functional. However, it is a prerequisite for shock-free operation. make a star wheel. As the clamp approaches, it remains in a certain basic position. In the unfavorable position the clamp could hit the notch of the rim and the wheel, respectively. disc. would not turn. This could result in damage.

lateral slipping of the ropes by the side wind and pdSr, however, if the rope is slightly squeezed on this safety device, then the device can slip out of the starting position before the clamp due to lateral friction of the rope, see above. Such structures therefore do not appear to be suitable for passenger transport equipment and are therefore not realized.

Guiding the rope on the load-bearing resp. the pressure rollers rely on all known devices. This profile of the pulley, i.e. the grooved sleeve and the lateral metal flange of the pulley, provides only a narrowly defined range of protection against lateral slipping of the rope.

SUMMARY OF THE INVENTION

The object of the invention is to provide a device which guarantees protection against lateral slipping of the rope for all possible causes, such as lateral wind, shifting of supports, mounting errors, rocking and vibration of the rope. The protective device must work in all cases; carry no additional risk in case of damage to its structure.

whose end accrues on

This object is achieved and the drawbacks are largely eliminated by the mechanical protective device according to the invention, which consists of a bracket, on which the rope pulley protrudes at least one vertically arranged lateral stop, which is fixedly connected to the guide rail. The side stop or side stops limit the lateral deviation of the rope from the rope pulley and prevent the rope from slipping laterally. Only when passing through the conveyor device is the guide rail fixedly connected to the lateral stop, by the action of the rope clamp, temporarily move away from the rope so that the rope clamp is allowed to pass. and hence the vehicle. This activity is carried out by shocks. The protective device is then returned to the home position. There is no danger of the rope slipping out of the rope pulley laterally during the short-term detachment of the lateral stop, due to the rope clamp design, rope strength and rope inertia. In the event of a blockage, for example by icing, the protective device is forced to release the approaching rope clamp. and pushes it away from the rope.

According to a preferred embodiment, the bracket, together with the lateral stopper and the stopper, is straddled about ¹ rope from above. resp. The arrangement of the protective device depends on whether the rollers are support rollers or pressure rollers.

According to a further preferred embodiment, the lateral stops are arranged at the protruding end of the pivotally mounted bracket in the region of the cable pulley or pulley battery.

According to a further embodiment, a guide rail mounted in the direction of the rope and bent at both ends is mounted on the bracket and is arranged to be lifted above the rope by means of a rope clamp of a passing conveyor device. thereby allowing passage of the conveying device. This mechanism is functional for both driving directions.

At the projecting end of the guide rail there is a guide roller mounted rotatably around the horizontal axis. This arrangement additionally ensures the basic position of the side stop in which the stop is functional.

The swing of the bracket is limited by two stops. The bracket must be swiveled only to the extent that the cable clamp can pass freely. Swing over the necessary swivel range is limited by these stops.

The bracket is held in its operating position by its own weight primary or <RP * 5 ^ ^t Tou spring or magnetic force. Thus, after passing the cable clamp, the bracket is returned to the base. position, in which the lateral stop is operative If required, the rope movement gauge is provided with one protective device for each, thus providing protection against lateral slipping of the rope from the pulley for both directions of travel.

Other advantages of an exemplary embodiment of the present invention will be set forth as described below with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of the rope protection device transversely to the rope axis. FIG. 2 shows the slip protection device in cross-section, transverse to the rope axis, of the cable clamp, and FIG. 3 shows the slip protection position, on the side passage of the device in side view, in the basic position.

Embodiments of the invention have been implemented

11 shows the rope 7 which circulates on the rope pulley 6. The structure according to the invention is supported by a bracket 3 which is supported on the rope pulley 6 and / or the battery pulley. The bracket 3 is rigidly connected to the guide rail 2 and has two vertically disposed lateral stops 1 which, in the shown basic position of the protective device, surround the rope 7 from above so that it can only laterally deviate from its prescribed position to a limited extent and This lateral deflection of the rope 7 from the cable pulley can also be limited on one side only by one vertical side stop 1.

In FIG. 2, the protective device is shown as the cable clamp 5 passes. The passing cable clamp 5 lifts the guide rail 2 and hence the lateral stops U fixed thereto, whereby the mechanical protective device temporarily opens and the cable clamp 5 can pass. During this short-term opening, the risk of the rope slipping laterally is minimal since the pressure of the rope 7 on the rope pulley 6 increases considerably as the vehicle approaches, and this pressure has a stabilizing effect. After passing the rope clamp 5, the bracket 3 returns to its initial position in which the rope slip protection device is functional due to its own weight or spring force or magnetic force.

As can be seen from FIG. 3, the basic position can be secured, for example, by means of stops 4y or by a guide pulley 4 arranged on the guide rail 2 above the rope 7. Returning to the basic position and maintaining it can be ensured by its own weight or additionally by spring force 4 or magnetic by force.

The design of the guide rail 2 with the curved leading ends guarantees a shock-free operation of the protective device by a cable clamp 5 for both directions of travel.

Claims (8)

PATENT CLAIMS A mechanical rope slip protection device resting on or guided on cableway pulleys comprising support or pressure rollers, the rope slip protection device being pivotably mounted about a horizontal axis in the carrier region. or rollers. and / or pressure rollers and comprises at least one vertical side stop to prevent the rope from slipping, characterized in that it is formed by a bracket (3). at least one vertically disposed lateral stop (1) is disposed at the end of the outlet facing the direction of movement of the rope (7) approaching the rope pulley (6). which is fixedly guided with the guide rail (2). 2- Mechanical protective device according to the invention. t í. m, with a lateral stop and / or lateral rope (7) from above and (4), respectively, of claim 1, which is at least 1). .spo 1 eč.ně. (i) surrounds Mechanical protective device according to claim 1 or 2, characterized in that the lateral stops <15 are arranged at the projecting end of the bracket) 3) pivotably mounted in the region of the rope pulley) 6). respC ^ ferTTerie logs. 4. A mechanical protective device according to claims 1 to 3. characterized in that a guide rail (2) is fastened to the bracket 3). arranged in the direction of the rope (7) and bent at both ends. which is arranged with the possibility of lifting over the rope (7) by means of a rope clamp (cb) of the passing conveying device. A mechanical protection device according to claim 4. characterized in that at the projecting end of the guide rail C2) a guide roller (4) is arranged rotatably about a horizontal axis, Mechanical protective device according to claims 1 to 5. characterized by. that the swing of the bracket (3) is limited by two stops (C4). Mechanical protective device according to claims 1 to 6, characterized by. This means that the bracket (3? is held in its functional base position by its own weight or the spring nylon C4) or by magnetic force. Mechanical protective device according to claims 1 to 7, characterized in that one protective device is provided for each direction of movement of the rope (7).