Railways – Traction – Cable
Patent
1985-06-24
1987-01-06
Reeves, Robert B.
Railways
Traction
Cable
104209, 104216, B61B 1212
Patent
active
046337830
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a device for clamping and supporting a transport apparatus on a conveying cable for use in cableways for passenger and material transportation.
Known clamping devices or automatic clamps for fastening a chair or a cabin to the conveying cable of a chair-lift or a cableway have the disadvantage that, as a rule, they comprise many parts and are not suitable as modules for single and multiple couplings. Known devices with few parts have the disadvantage that the guide rail cannot be laid in a straight line in the coupling locations.
It is therefore a task of the present invention to provide a device for clamping a transport apparatus on a conveying cable for use for chair-lifts, cableways, materialways, etc., which does not have the above-mentioned disadvantages. The device shall be distinguished by a simple construction, and standardized parts shall be able to be used for its manufacture. The clamping device shall be able to be used for various types of transport apparatus or vehicles. The device shall be suited both for use in single couplings, such as are applicable, e.g., to chairs, and in double couplings, such as are applicable, e.g., to four-passenger cabins.
Furthermore, a simple, straight rail guidance in the coupling location shall be achieved.
Furthermore, it is a task to form the device in such a way that the distance between the plane normal to the main shaft which contains the center of the guide-pulleys and the plane normal to the main shaft which contains the center of the cable is about the same before and after the coupling action. That range in which the position of the clamping jaws changes is designated the coupling action.
According to the invention, this is achieved by the characterizing features of the independent patent claim 1.
Examples of embodiments of the invention, as well as their use, are described in more detail below with the aid of the accompanying drawing.
FIG. 1 shows a section through a clamping device such as is used in double couplings for suspension of cabins,
FIG. 2 a schematic representation of the levers and joints of the clamping device,
FIG. 3 is a top plan view, partially cut, of a double coupling,
FIG. 4 a top plan view, partially cut, of a single coupling.
Represented in FIG. 1 is a cross-section through a clamping device such as is used in double couplings for cableway cabins. The clamping device 1 comprises a main shaft 2 with an inner clamping jaw 3 rotatably secured thereto. At the opposite end of the main shaft 2, a guide part 4 for guiding the clamping device with the guide rail 5 disposed in a coupling location of the cableway is provided. An upper frame part 6 of the clamping device is connected to an outer clamping jaw 7. The inner clamping jaw 3 and the outer clamping jaw 7 are rotatably connected to one another via a joint 8. An actuating roller 10 is provided on a connecting piece which connects the outer clamping jaw 7 to the upper housing part 6. On the outer clamping jaw 7, a stop component 9 is provided. On the main shaft 2, between the swivel joint 11 for the inner clamping jaw and a fastening part 12 for the suspension 13 of the cableway cabin, a guide-pulley 14 is provided for guiding the cabin with the travelling rail 15 disposed in a coupling location. The travelling rail 15 is disposed on a station rail 16.
The actuating roller 10 is moved by an opening rail 17 disposed in the mountain station and the valley station from the extended position into the dot-dashed position 10a, during which the clamping jaws 3 and 7 enclosing the conveying cable 18 open and assume the dot-dashed positions 3a and 7a. In the zone where the actuating roller 10 is pressed by the opening rail 17 into the lower position drawn in dot-dash lines, the conveying cable runs, not horizontally, but obliquely downward. In the position in which the two clamping jaws 3 and 7 are opening, the bearing part 20 connected to the rear part 19 of the upper frame part 6 has been displaced on the main shaft in the direction of the traction cable agai
REFERENCES:
patent: 3416462 (1968-12-01), Pomagalski
patent: 3610164 (1971-10-01), Feuz
patent: 3850110 (1974-11-01), Berry et al.
patent: 4120247 (1978-10-01), Muller et al.
patent: 4297951 (1981-11-01), Laurent
patent: 4441430 (1984-04-01), Brochand
Reeves Robert B.
Rodgers Dennis C.
Von Roll Habegger AG.
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