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US 12,698,014 B2Granted
Railcar bodyshell
AssigneeKawasaki Railcar Manufacturing Co., Ltd.
InventorsAtsushi Sano, Shinichiro Hata, Yuji Toya, Kazuyoshi Ikushima, Atsushi Sano
Life of this patent
Estimating the term…
Abstract
An object is to provide a railcar bodyshell whose deformation behavior at the time of collision is stable. The railcar bodyshell includes an anti-climber projecting from an end beam outward in a car longitudinal direction. The anti-climber includes a starting point portion that serves as a starting point of bending of the end beam when collision has occurred, and the end beam is bent by a collision load. The starting point portion is disposed at a portion corresponding to a position between a front end of an energy absorber and a corner post in a car width direction.
Claims8
A railcar bodyshell comprising:
- an underframe including an underframe main body and an end beam, the end beam being disposed at one of end portions of the underframe main body in a car longitudinal direction and extending in a car width direction;
- a corner post connecting the underframe and a roof bodyshell;
- an energy absorber that is arranged between the end beam and the underframe main body and absorbs part of collision energy;
- and
- an anti-climber that projects from the end beam outward in the car longitudinal direction and extends in the car width direction, wherein:
- the end beam includes an end beam main body portion and a side coupling portion, the side coupling portion connecting the end beam main body portion to the underframe main body in a corner post rear region that extends from the corner post inward in the car longitudinal direction;
- the anti-climber includes a starting point portion that serves as a starting point of bending of the end beam when collision has occurred, and the end beam is bent by a collision load;
- the starting point portion is disposed at a portion corresponding to a position between a front end of the energy absorber and the corner post in the car width direction;
- and
- the starting point portion includes a cutout located at a part of the anti-climber in the car width direction.
7 more elements
A railcar bodyshell, comprising:
- an underframe including an underframe main body and an end beam, the end beam being disposed at one of end portions of the underframe main body in a car longitudinal direction and extending in a car width direction;
- a corner post connecting the underframe and a roof bodyshell;
- an energy absorber that is arranged between the end beam and the underframe main body and absorbs part of collision energy;
- and
- an anti-climber that projects from the end beam outward in the car longitudinal direction and extends in the car width direction, wherein:
- the end beam includes an end beam main body portion and a side coupling portion, the side coupling portion connecting the end beam main body portion to the underframe main body in a corner post rear region that extends from the corner post inward in the car longitudinal direction;
- the anti-climber includes a starting point portion that serves as a starting point of bending of the end beam when collision has occurred, and the end beam is bent by a collision load;
- the starting point portion is disposed at a portion corresponding to a position between a front end of the energy absorber and the corner post in the car width direction;
- the starting point portion includes at least one of a cutout located at a part of the anti-climber in the car width direction, a thin portion located at a part of the anti-climber and thinner than the other portion of the anti-climber, or a hole penetrating a wall of a front end of the end beam in the car longitudinal direction;
- the end beam includes:
- a first portion located adjacent to and behind the corner post;
- and
- a second portion located behind the first portion, and
- rigidity of the first portion of the end beam in the car longitudinal direction is higher than rigidity of the second portion of the end beam in the car longitudinal direction.
11 more elements
A railcar bodyshell, comprising:
- an underframe including an underframe main body and an end beam, the end beam being disposed at one of end portions of the underframe main body in a car longitudinal direction and extending in a car width direction;
- a corner post connecting the underframe and a roof bodyshell;
- an energy absorber that is arranged between the end beam and the underframe main body and absorbs part of collision energy;
- and
- an anti-climber that projects from the end beam outward in the car longitudinal direction and extends in the car width direction, wherein:
- the end beam includes an end beam main body portion and a side coupling portion, the side coupling portion connecting the end beam main body portion to the underframe main body in a corner post rear region that extends from the corner post inward in the car longitudinal direction;
- the anti-climber includes a starting point portion that serves as a starting point of bending of the end beam when collision has occurred, and the end beam is bent by a collision load;
- the starting point portion is disposed at a portion corresponding to a position between a front end of the energy absorber and the corner post in the car width direction;
- the starting point portion includes at least one of a cutout located at a part of the anti-climber in the car width direction, a thin portion located at a part of the anti-climber and thinner than the other portion of the anti-climber, or a hole penetrating a wall of a front end of the end beam in the car longitudinal direction;
- the end beam includes an upper plate portion that is attached to an upper portion of the end beam main body portion and includes a through hole;
- and
- the upper plate portion is attached to the end beam main body portion by continuous fillet welding along an edge portion surrounding the through hole.
9 more elements
A railcar bodyshell, comprising:
- an underframe including an underframe main body and an end beam, the end beam being disposed at one of end portions of the underframe main body in a car longitudinal direction and extending in a car width direction;
- a corner post connecting the underframe and a roof bodyshell;
- an energy absorber that is arranged between the end beam and the underframe main body and absorbs part of collision energy;
- and
- an anti-climber that projects from the end beam outward in the car longitudinal direction and extends in the car width direction, wherein:
- the end beam includes an end beam main body portion and a side coupling portion, the side coupling portion connecting the end beam main body portion to the underframe main body in a corner post rear region that extends from the corner post inward in the car longitudinal direction;
- the anti-climber includes a starting point portion that serves as a starting point of bending of the end beam when collision has occurred, and the end beam is bent by a collision load;
- the starting point portion is disposed at a portion corresponding to a position between a front end of the energy absorber and the corner post in the car width direction;
- the starting point portion includes at least one of a cutout located at a part of the anti-climber in the car width direction, a thin portion located at a part of the anti-climber and thinner than the other portion of the anti-climber, or a hole penetrating a wall of a front end of the end beam in the car longitudinal direction;
- the end beam includes a lower plate portion that is attached to a lower portion of the end beam main body portion and includes a through hole;
- and
- the lower plate portion is attached to the end beam main body portion by continuous fillet welding along an edge portion surrounding the through hole.
9 more elements
Dependencies are inferred from the claim text.