DE2138983C3 - BUgelgeber at the starting point of a ski tow lift - Google Patents

Description

25th

The invention relates to a stirrup sensor at the take-off point of a ski tow lift with a circumferential Conveyor rope and attached to this hangers with pull-out brackets on tow ropes, the bracket transmitter one in the area of the valley-side deflection sheave of the hoisting rope below it in the towing direction Inclined downwardly extending belt conveyor includes the two parallel conveyor belts Pick up tow bars between them and move them to the delivery point by means of their lower strands.

As the prior art, a bracket encoder of the type mentioned is already known in which the Circumferential speed of the belt conveyor approximately the rotational speed of the conveyor rope corresponds to (DT-OS 20 11 358). This allows in In practice, however, there are potential dangers: When the hoisting rope runs at the same speed like the downward sloping conveyor belt, at the delivery point the bracket can already fully move out of the The drum of the tow rope must be pulled out, causing the skier to jerk off the valley station immediately is transported away. This results in an increased risk of accidents.

The state of the art also includes a ski lift in which the seat bar sensor is directed downwards at an angle has no belt conveyor device; published documents of the OE patent application 9555/67 (announced July 15, 1971). Only through the Pulling the hauling rope, the seat frame encoder is transported onwards and the one at the delivery point presented to standing skiers. This can lead to the risk that the bracket within the Seat bracket encoder is not moved into the correct position, so that the two to be taken from the bracket Skiers are caught unevenly. In addition, the construction of this well-known ski lift is relative expensive, since the seat bracket sensor has two hydraulic cylinders in the lower area.

State-of-the-art technology also includes a device for holding bars for the valley station of tow lifts, (DT-C) S 20 43 410). Each tow bar is provided with a ferromagnetic body, the belt conveyor device having an electromagnet. Each tow bar is grasped at the upper end of the belt conveyor device and led obliquely downward into the delivery position, where the skier is caught by the tow bar.This known device is relatively complex due to the use of an electromagnet, and each tow bar must also be provided with a ferromagnetic body will. This results in high costs, and subsequent use on existing tow lifts is not possible. Furthermore, the use of an electromagnet is prone to failure and requires maintenance.

In contrast, the object of the present invention is to provide a bracket sensor of the type mentioned at the beginning create, which, despite the simple structure, meets the requirements for ski tow lifts that arise in practice fair and excludes the possibility of accidents.

This object is inventively achieved in that the running speed aer conveyor belts of the belt conveyor device is greater than the rotational speed of the conveying cable and that the two speeds are matched so that the time of arrival of a trailing strap at the discharge end of the conveyor belts, on which a Anstellsitz is , the tow rope with the hauling rope one. Includes angle of about 90 °. This has the advantage that the skier is not immediately jerked away from the delivery point. The skier can follow the pulling out of the handlebar and adjust to the point in time at which the start takes place. If there is no skier at the adjustment seat, the bracket attached to the tow rope snaps vertically upwards and thus does not endanger, for example, a skier on the towing track pulled by a previous bracket.

The invention is explained in more detail below with reference to the exemplary embodiments shown in the drawing described. In the drawing shows

Fig. 1 is a plan view of a bracket transmitter in a schematic representation,

2 shows a side view of the bracket transmitter according to FIG. 1,

F i g. 3 shows a plan view of a further embodiment of the stirrup transmitter in a one-man towing bow and

F i g. 4 is a side view of the automatic bow transmitter according to FIG. 3.

In Fig. 1 and 2 is a bracket transmitter for tow brackets shown for two skiers. This bracket encoder 1 has a two-part belt conveyor device 2, which Has conveyor belts 3 and 4. The conveyor belts 3 and 4 run in the direction of the arrow / or //. At the top of the A guide 5 is arranged on the two-part belt conveyor device, which guide is, for example, trough-shaped is.

Insertion elements 6 are attached above this guide 5. A tow bar 7, which with the help of the Conveyor rope 9 is pivoted around the deflection pulley 8, is adjusted with the help of the guide 5 and over the insertion element 6 so presented to the two conveyor belts 3 and 4 that it is at right angles to them.

With the help of the movement of the conveyor belts 3 and 4, the tow bar 7 is now in the direction of the arrow // moved from the top down to the delivery point. In the area of the delivery point there are adjustable seats 15 intended. Between the adjustment seats 15 and the lower end of the conveyor belts 3 and 4 are located Slide rails 16.

The speed of the two-part belt conveyor 2 is su that in the delivery position according to Figure 2 of the tow bar 7 approximately perpendicular to the Conveyor rope 9 is standing, d. H. with this includes an angle of about 90 °.

The conveyor belts 3 and 4 run over rollers 11 and 12, the rollers 11 being connected to V-belt pulleys 13. These pulleys 13 are Driven by an electric motor 14 arranged on the floor via V-belts. ,O

The embodiment according to FIG. , 1 and F i g. 4 is intended as an automatic stirrup transmitter for a one-man stirrup. Here, the tow bar 170 is moved via insertion elements 60 to the conveyor belts 3 and 4, which in the lower area in the arrow direction //, _{5 lead} the tow bar to the lower end, ie to the delivery point.

At the lower end, i.e. H. At the delivery point, slide rails 160 are provided which are approximately parallel to the Are arranged on the ground. A contact seat 150 is located next to these slide rails 160. On this contact seat The skier can sit down 150.

As soon as a tow bar has reached the lower area of the two-part belt conveyor device, grabs the skier takes the presented tow bar 7 and clamps it between his legs, whereby he can be carried uphill.

Again, the speed of the two conveyor belts 3 and 4 is to be dimensioned so that the Tow bar 170 at the delivery point is approximately perpendicular to the hoisting rope.

Overall, the automatic bow transmitter results in a simple structural design, which can easily be retrofitted to the existing tow lifts. The operation is very simple and the system is so reliable that even inexperienced users can easily can be safely taken along at the drop-off point using the tow bars.

For this purpose 2 sheets of drawings

Claims (1)

Claim: Stirrup sensor at the starting point of a ski tow lift with a revolving hoisting rope and hangers attached to it with stirrups that can be pulled out on tow ropes, the stirrup sensor comprising a belt conveyor device in the area of the valley-side deflecting pulley of the hoisting rope underneath this in the towing direction, the two parallel conveyor belts of which have the towing bow between them take up and move by means of their lower strands to the delivery point, characterized in that the running speed of the conveyor belts (3 and 4) of the belt conveyor device (2) is greater than the speed of rotation of the conveyor rope (9) and that the two speeds are coordinated so that when a tow bar (7) arrives at the delivery end of the conveyor belts (3 and 4), where there is an adjustment seat (15), the tow rope forms an angle of about 90 ° with the conveyor rope (9).