RAILWAY CAR
First Claim
1. A railway car body, wherein members constituting the ends of the car body in the direction of travel are shock absorbers;
- each said shock absorber is composed of plural extruded members having plural hollow portions;
said plural extruded members are disposed so that their extrusion directions correspond to the longitudinal direction of the car body;
a plate is disposed between two extruded members positioned adjacent to one another in the direction of extrusion of the members; and
the longitudinal ends of said two members are welded to said plate.
2 Assignments
0 Petitions
Accused Products
Abstract
A front end portion 100 is disposed on the front end of a car body. The floor thereof consists of extruded hollow members 210 that constitute a shock absorber 200. The shock absorber 200 is divided into an upper shock absorber 200 and a lower shock absorber 200. Annealed extruded hollow members are used to form the hollow member 210. The hollow members 210 are disposed so that their direction of extrusion corresponds to the longitudinal direction of the car body. The hollow members 210 are divided longitudinally into two portions by a plate 220. At the width-direction ends of member 210, the face plates 211 and 212 are welded onto plates 223-226. Upon receiving impact load, members 210 fold up into concertinas, absorbing the impact force. Since members 210 are separated by a plate, they deform evenly and continuously into concertinas instead of being bent in half, capable of absorbing a large energy.
25 Citations
8 Claims
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1. A railway car body, wherein
members constituting the ends of the car body in the direction of travel are shock absorbers; -
each said shock absorber is composed of plural extruded members having plural hollow portions;
said plural extruded members are disposed so that their extrusion directions correspond to the longitudinal direction of the car body;
a plate is disposed between two extruded members positioned adjacent to one another in the direction of extrusion of the members; and
the longitudinal ends of said two members are welded to said plate. - View Dependent Claims (2, 3, 4)
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5. A railway car body, wherein
members constituting the ends of the car body in the direction of travel are shock absorbers; -
each said shock absorber is composed of plural extruded members having plural hollow portions;
each said extruded member comprises two face plates substantially parallel to one another and plural connecting plates that are connected to said face plates;
said plural extruded members are disposed so that their extrusion directions correspond to the longitudinal direction of the car body; and
a plate is provided to one end of said extruded member in the width direction to which said two face plates are welded. - View Dependent Claims (6, 7, 8)
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Specification