Center buffer coupling for railroad cars

Details Center buffer coupling for railroad cars Center buffer coupling for railroad cars

2004-11-17

2009-02-17

Morano, S. Joseph (Department: 3617)

Railway draft appliances

Cushioned

Radially movable

C213S074000

Reexamination Certificate

active

07490729

ABSTRACT:
The present invention relates to a center buffer coupling for railroad cars that has a coupling head1and a coupling shaft2that holds the coupling head1on its front end3, whereby the rear end4of the coupling shaft2is attached to the frame of the railroad car so that it can swivel horizontally. In the case of a crash, i.e. during the occurrence of extreme impact energies, in order to shorten the coupled couplings in such a way that the energy absorbing elements22on the body side dissipate the impact energy transferred between the adjacent car bodies during the impact without additional space being needed when the coupling head1is taken out of the force flow, according to the invention, a section6of the coupling shaft is formed of a first partial piece7and a second partial piece8, whereby the two partial pieces7, 8are connected to each other by means of an overload safety device9. In this case, the overload safety device has a first bolt10and at least one second bolt that responds when a specific response force is exceeded in the longitudinal and/or lateral direction of the coupling shaft, whereby the first bolt10and the at least one second bolt11are mounted in succession in the direction of the coupling shaft. Because of the design of the overload safety device9according to the invention, in a crash two coupled center buffer couplings are shortened by a combined linear and rotational movement of the respective coupling head1without this requiring space behind the attaching plane and/or behind the frame.

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