Train having energy absorbing structure between cars

Details Train having energy absorbing structure between cars Train having energy absorbing structure between cars

2008-04-15

2008-04-15

Morano, S. Joseph (Department: 3617)

Railway draft appliances

Car-end bumpers or buffers

Resilient

Reexamination Certificate

active

10478790

ABSTRACT:
In energy absorbing structures in an entire train, a compression amount at an interface between cars at an end portion of a train is reduced and compression at an interface between cars at a center portion of the train is facilitated. In the structure, a plurality of cars (A1to A12) are coupled to one another through couplers (B1to B11), and energy absorbing structures (S12to S42, S82to S122) are provided between cars. An average compressive load corresponding to a value obtained by dividing an energy absorption amount of the energy absorbing structure by a maximum compression amount of the energy absorbing structures (S12to S42, S82to S122) is set smaller at an interface between cars at a center portion of the train than at an interface between cars on an outer side of the train (closer to an end portion).

REFERENCES:
patent: 2636621 (1953-04-01), Dean
patent: 6446820 (2002-09-01), Barker et al.
patent: 6796448 (2004-09-01), Wilt et al.
patent: 2001-260881 (2001-09-01), None
International Search Report for International Applicatio No. PCT/JP03/01284 by the Japanese Patent Office dated Apr. 10, 2003.

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