Railcar

Patent metadata

Field	Value
Publication number	US-9718481-B2
Application number	US-201214414279-A
Country	US
Kind code	B2
Filing date	Jul 12, 2012
Priority date	Jul 12, 2012
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

A railcar includes: an underframe including an end beam at its railcar-longitudinal-direction end portion; side bodyshells; a roof bodyshell; side outside plates respectively arranged at both railcar-width-direction end portions of the railcar and constituting the side bodyshells; corner posts extending from the end beam toward the roof bodyshell; and intermediate coupling members each configured to couple the side outside plate and the corner post, the stiffness of the intermediate coupling member in a railcar longitudinal direction being lower than the stiffness of the intermediate coupling member in a vertical direction.

First claim

The invention claimed is:

1. A railcar comprising:
an underframe including an end beam at a railcar-longitudinal-direction end portion thereof;
side bodyshells comprising side outside plates that are respectively arranged at both railcar-width-direction end portions of the railcar;
corner posts extending from the end beam toward a roof bodyshell; and
intermediate coupling members each configured to couple one of the side outside plates and a surface of one of the corner posts that extends along a railcar longitudinal direction, stiffness of the intermediate coupling member in the railcar longitudinal direction being lower than stiffness of the intermediate coupling member in a vertical direction, wherein:
each of the intermediate coupling members is an extruded, double skin panel including, in a horizontal cross-sectional view, a straight outer surface plate portion, a corrugated inner surface plate portion, and a web configured to couple these surface plate portions and extending in the vertical direction, and
a direction of extrusion of the intermediate coupling members is in the vertical direction.

2. The railcar according to claim 1 , wherein the stiffness of each of the intermediate coupling members in the railcar longitudinal direction is lower than stiffness of the intermediate coupling member in a railcar width direction.

3. The railcar according to claim 1 , wherein the intermediate coupling members are configured to crush in the railcar longitudinal direction to suppress deformation of the side outside plates by an impact load transmitted via the corner posts.

4. The railcar according to claim 1 , wherein the intermediate coupling members are configured to crush in the railcar longitudinal direction to absorb at least a railcar-longitudinal-direction force of an impact load transmitted via the corner posts.

5. The railcar according to claim 1 , wherein the intermediate coupling members are configured to crush in the railcar longitudinal direction to reduce an impact load transmitted via the corner posts to the side outside plates and the roof bodyshell.

6. The railcar according to claim 1 , wherein grooves each extending in the vertical direction are formed on the intermediate coupling members.

7. A railcar comprising:
an underframe including an end beam at a railcar-longitudinal-direction end portion thereof;
side bodyshells comprising side outside plates that are respectively arranged at both railcar-width-direction end portions of the railcar;
corner posts extending from the end beam toward a roof bodyshell; and
intermediate coupling members each configured to couple one of the side outside plates and a surface of one of the corner posts that extends along a railcar longitudinal direction, stiffness of the intermediate coupling member in the railcar longitudinal direction being lower than stiffness of the intermediate coupling member in a vertical direction, wherein:
each of the corner posts is arranged at a railcar-width-direction inner side of the corresponding side outside plate; and
each of the intermediate coupling members includes (i) one end fixed to the railcar-longitudinal-direction-extending surface of the corresponding corner post, which is an outer side surface of the corner post in the railcar-width-direction, and (ii) another end fixed to a railcar-width-direction inner side surface of the corresponding side outside plate.

8. A railcar comprising:
an underframe including an end beam at a railcar-longitudinal-direction end portion thereof;
side bodyshells comprising side outside plates that are respectively arranged at both railcar-width-direction end portions of the railcar;
corner posts extending from the end beam toward a roof bodyshell; and
intermediate coupling members each configured to couple one of the side outside plates and a surface of one of the corner posts that extends along a railcar longitudinal direction, stiffness of the intermediate coupling member in the railcar longitudinal direction being lower than stiffness of the intermediate coupling member in a vertical direction, wherein:
the corner posts are respectively arranged at both railcar-width-direction end portions of the railcar and are respectively flush with outer side surfaces of the side outside plates; and
each of the intermediate coupling members includes (i) one end fixed to the railcar-longitudinal-direction-extending surface of the corresponding corner post, which is an inner side surface of the corner post in the railcar-width-direction, and (ii) another end fixed to a railcar-width-direction inner side surface of the corresponding side outside plate.

9. The railcar according to claim 1 , further comprising guide members respectively arranged on railcar-width-direction extending outer sides of the corner posts and each inclined backward in the railcar longitudinal direction toward the corresponding side outside plate at the corresponding railcar-width-direction end portion.

10. The railcar according to claim 6 , wherein the grooves are formed by concavities in the intermediate coupling members.

11. The railcar according to claim 10 , wherein at least a portion of each of the intermediate coupling members has a corrugated plate shape.

12. The railcar according to claim 6 , wherein the grooves are located between surfaces of the intermediate coupling members that face each other.

13. The railcar according to claim 1 , wherein the intermediate coupling members are each configured to couple an end of the railcar-longitudinal-direction-extending surface of the corresponding corner post that is farthest from the corresponding side outside plate.

Assignees

• Sano Atsushi
• Kawakami Naoaki
• Minamimoto Yasufumi
• Yoshida Naohiro
• Kawasaki Heavy Ind Ltd

Inventors

• Sano Atsushi
• Kawakami Naoaki
• Minamimoto Yasufumi
• Yoshida Naohiro

Classifications

• B61D17/04

  with bodies of metal; with composite, e.g. metal and wood body structures · CPC title

• B61D17/06

  End walls · CPC title

• B61D17/08

  Sides · CPC title

• B61D15/06 Primary

  Buffer cars; Arrangements or construction of railway vehicles for protecting them in case of collisions (buffers B61G11/00) · CPC title

• Y02T30/34

  Cross-Sectional Technologies · mapped topic