Railway draft appliances – Cushioned – Radially movable
Reexamination Certificate
2006-06-06
2006-06-06
Le, Mark T. (Department: 3617)
Railway draft appliances
Cushioned
Radially movable
C213S018000, C213S021000, C213S012000, C213S074000
Reexamination Certificate
active
07055705
ABSTRACT:
A central buffer coupling for coupling a first rail car body with a second, adjacent rail car body of a multiple-unit rail vehicle, has a coupling head pivotally connected by a coupling shaft to a linking housing of the rail car body, and a pivoting unit pivoting the coupling shaft. The pivoting unit has a guide participating in horizontal pivoting of the shaft that runs about a vertical pivot axis. Pressure surfaces symmetrical to the longitudinal axis of the shaft which correspond to a respective pressure device, bring about horizontal re-centering of the shaft. The respective pressure devices are supported on the linking housing of the shaft to bias the related pressure surfaces against the guide. The guide is positionable with the action-linked coupling shaft in every position of the planned pivot region, via an activation device. In order to have the pivoting unit not be in engagement during traveling operation and thereby be unaffected by pivoting-out movements of the coupling shaft, the activation device pushes a guide pin guided by way of a contour into a guide driver. Because the driver is then connected with the bearing pin, the coupling shaft pivots.
REFERENCES:
patent: 3484000 (1969-12-01), Cope
patent: 3627144 (1971-12-01), Dwyer, Jr.
patent: 3926317 (1975-12-01), Scharfenberg et al.
patent: 4013175 (1977-03-01), Klein et al.
patent: 4289247 (1981-09-01), Brand et al.
patent: 5472104 (1995-12-01), Domsgen
patent: 6805251 (2004-10-01), Radewagen et al.
patent: 28 22 104 (1979-11-01), None
patent: 101 62 731 (2003-07-01), None
Extended European Search Report in EP 03 028 145.5 with English Translation, no date.
Collard & Roe P.C.
Le Mark T.
Voith Turbo Scharfenberg GmbH & Co. KG
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