DE2138983B2 - BUCKLE AT THE STARTING PLACE OF A SKI TOW LIFT - Google Patents

Description

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 Schleppse.les should 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 does not have a belt conveyor. Announced documents of the OE patent application 9555/67 (announced July 15, 1971). The seat bracket sensor is only activated by pulling the conveyor rope transported on and presented to the skiers standing at the drop-off point. This allows the There is a risk that the bracket within the seat bracket sensor will not be in the correct position moved, so that the two skiers to be taken from the bracket are unevenly detected. Furthermore the construction of this well-known ski lift is relatively complex, since the seat bracket sensor is in the lower area has two hydraulic cylinders.

The state of the art also includes a device for handing out hangers for the valley station of T-bar lifts, (DT-OS 20 43 410). Each tow bar has a ferromagnetic body provided, wherein the belt conveyor has an electromagnet. Each tow bar is on detected the upper end of the belt conveyor and guided obliquely downward into the delivery position, where the Skier is caught by the tow bar. This known device is relatively complicated as a result the use of an electromagnet, and each tow bar must also have a ferromagnetic one Body are provided. This results in high costs and subsequent use existing tow lifts is not possible. Furthermore, the use of an electromagnet is prone to failure and needs 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 achieved in that the running speed of the conveyor belts Belt conveyor is greater than the speed of rotation of the conveyor rope and that the two Speeds are coordinated so that at the time of the arrival of a tow bar at the delivery end of the conveyor belts, where there is an Anstelkitz, the tow rope with the hoisting rope encloses an angle of approximately 90 °. This has the advantage that the skier does not jerk immediately is moved away from the delivery point. The skier can follow the removal of the handlebar and himself adjust to the point in time at which the start takes place. If there is no skier at the leaning seat, so the bracket attached to the tow rope snaps vertically upwards and thus endangers, for example not a skier pulled by a previous bracket on the towing track.

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

F i g. 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.l,

F i g. 3 is a top view of a further embodiment of the stirrup transmitter in a one-man towing vehicle gel and

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

In Fig. 1 and 2, a bracket sensor for tow bars for two skiers is shown. This bracket transmitter 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 upper end of the two-part belt conveyor device is a guide 5 arranged, which for example formed trough-shaped is.

Insertion elements 6 are fastened 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.

Adjustment seats 15 are provided in the area of the delivery point. Between the adjustment seats 15 and the Slide rails 16 are located at the lower end of the conveyor belts 3 and 4.

The speed of the two-part belt conveyor 2 is such 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 an angle of includes 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 V-belt pulleys 13 are driven via V-belts by an electric motor 14 arranged on the floor. _{! 0}

The AMs management form according to FIG. 3 and F i g. 4 is intended as an automatic bracket transmitter for a one-man bracket. Here, the tow bar 170 is moved via insertion elements SO to the conveyor belts 3 and 4, which in the lower area in the direction of the arrow // lead the tow bar to the lower end, ie to the delivery parts.

At the lower end, ie at the delivery point, slide rails 160 are provided, which are arranged approximately parallel to the floor. In addition to these slide rails 160 there is an adjustment seat 150. The skier can sit on this adjustment seat 150.

As soon as a tow bar has reached the lower area of the two-part belt conveyor device, he the skier grabs the tow bar presented '7 and clamps it between his legs, causing him 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 conveyor 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).