| 摘要 |
A blondin cableway installation, comprises a pair of carrying cables extendi ng between the two ends of the installation; a carriage provided with a lifting tackle and supported movably on the carrying cables; a lifting cable for operating the lifting tackle, extending between the two ends of the installation; an outward haulage cable for conveying the carriage along the pair of carrying cables, said outward haulage cable being connected via tackle to the carriage so as to have a pair of outward haulage sections which extend between the carriage and each end of the installation; and a plurality of cradles arranged along the pair of carrying cables and suspended from the m in a stationary manner and designed to support the lifting cable and outward haulage cable, each of the cradles comprising, on each side, a pair of support rollers able to receive by means of gravity, alternately, the outward haulage cable or the lifting cable, and a corresponding pair of retaining rollers able to bias the lifting cable and haulage cable against the support rollers, the retaining rollers being supported by a pendulum member hinged with the cradle; wherein the carriage has, formed in it, a longitudinal passage which has a cross-section such as to allow it to be passed through by one of the cradles during the movement of the carriage; and wherein the carriage is provided, on each side of the passage, with a cam member able to raise the retaining rollers upon entr y of the passage by the cradle, so as to allow disengagement of the lifting cable and outward haulag e cable from the support rollers when the carriage is passed through by the cradle, the cam member acting on a respective tappet member integral with the pendulum member.
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