Railway rolling stock – Trucks – Overhead crane
Patent
1980-02-12
1983-05-10
Reese, Randolph
Railway rolling stock
Trucks
Overhead crane
105209, 105218A, 188378, 212146, 280701, B61F 530, B61D 1500
Patent
active
043824137
ABSTRACT:
An earthquake-resistant crane including a plurality of girders supported on wheels for movement along rails includes a vertical vibration damping device to ensure safe operation of the crane. The vertical vibration damping device includes a resilient support for supporting the girders in a vertical direction, a vibration direction converting arrangement mounted between the girders and the wheels for converting vertical vibrations of the girders to a horizontal displacement of the wheels, and drive control device connected to the wheels. The vertical vibration damping device operates such that the vertical vibrations of the girders are converted to a horizontal displacement of the wheels to dissipate the energy of vibrations by the sliding friction produced between the wheels and the rails when the wheels move in the horizontal direction, whereby the amplitude of vibrations produced in response to the vertical vibrations of the girders can be reduced.
REFERENCES:
patent: 1328934 (1920-01-01), Valls
patent: 1959548 (1934-05-01), Ries
patent: 2430248 (1947-11-01), Powarzynski
patent: 2887310 (1959-05-01), Muller
patent: 2957432 (1960-10-01), Schurel
patent: 3257968 (1966-06-01), Minty et al.
patent: 3334596 (1967-08-01), Suri
patent: 3387857 (1968-06-01), Roberts
patent: 3674285 (1972-07-01), Grosseau
patent: 4161144 (1979-07-01), Raugulis et al.
Kakehi Yutaka
Kasai Kenjiro
Saito Toru
Terada Katsuyuki
Torii Keiichiro
Hitachi , Ltd.
Reese Randolph
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