Switching means for guideway tracks

Details Switching means for guideway tracks Switching means for guideway tracks

1982-05-13

1984-11-27

Scherbel, David A.

Railways

Droppings catcher

246433, E01B 708

Patent

active

044845260

ABSTRACT:
A switching structure for a guideway track including one or more running ways adapted for supporting running wheels of a guideway vehicle and one or more guide rails adapted for guiding guide wheels of the vehicle. The switching structure includes a first and second substantially vertically movable guide rails, a crank mechanism for alternately raising and lowering the first and second movable guide rails for switching running path of the vehicle and a driving device for driving the crank mechanism. The crank mechanism has a first and second crankarms having a phase difference smaller than 180.degree., the first movable guide rail being connected with the first crankarm at a first radius position so that the first movable guide rail is movable substantially vertically for a first stroke when the first crankarm is rotated in an angular range which extends from a horizontal line upwardly by a first upward angle and downwardly by a first downward angle, the second movable guide rail being connected with the second crankarm at a second radius position so that the second movable guide rail is movable substantially vertically for a second stroke when the second crankarm is rotated in an angular range which extends from a horizontal line upwardly by a second upward angle and downwardly by a second downward angle. The first and second strokes satisfying a specific relationship, with respect to the radius, the upward and downward angles so that the operation and the structure of the switching device can be simplified.

REFERENCES:
patent: 330878 (1885-11-01), Duggan
patent: 3661091 (1972-05-01), Noble
patent: 3791306 (1974-12-01), Wagner et al.
patent: 4215837 (1980-08-01), Uozumi et al.

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