Railcar bodyshell
A railcar bodyshell includes: a plurality of modules into which at least one of a floor portion, side portion, and roof portion of the bodyshell is divided in a car longitudinal direction; and an elongated member extending in the car longitudinal direction, the plurality of modules being attached to the elongated member. The elongated member includes a groove portion for fixing the plurality of modules to the elongated member the groove portion extending in the car longitudinal direction.
1. A railcar bodyshell comprising:
a plurality of modules into which at least one of a floor portion, side portion, or roof portion of the bodyshell is divided in a car longitudinal direction;
an elongated member extending in the car longitudinal direction, the plurality of modules being attached to the elongated member; and
a coupling seat unit inserted into an internal space of a groove portion of the elongated member,
the elongated member including the groove portion for fixing the plurality of modules to the elongated member, the groove portion extending in the car longitudinal direction, and
the plurality of modules being fixed to the coupling seat unit through a longitudinal opening portion of the groove portion.
2. The railcar bodyshell according to claim 1 , wherein:
a width of the longitudinal opening portion of the groove portion is smaller than each of a width of the internal space of the groove portion and a width of the coupling seat unit in a direction perpendicular to the car longitudinal direction, the longitudinal opening portion extending in the car longitudinal direction.
3. The railcar bodyshell according to claim 2 , wherein:
the coupling seat unit includes
(a) a plurality of coupling seats to which the respective modules are fixed, and
(b) coupling links rotatably coupling the plurality of coupling seats to one another; and
the coupling links are arranged at positions corresponding to car longitudinal direction end portions of the modules in the car longitudinal direction.
4. The railcar bodyshell according to claim 3 , wherein:
the side portion is constituted by the plurality of modules;
each of a side sill and a cantrail is constituted by the elongated member;
the coupling link arranged at the groove portion of the cantrail is longer in the car longitudinal direction than the coupling link arranged at the groove portion of the side sill.
5. The railcar bodyshell according to claim 2 , wherein:
end opening portions are formed at both respective car longitudinal direction ends of the groove portion, the end opening portions being open in the car longitudinal direction; and
lid members are attached to the respective end opening portions.
6. The railcar bodyshell according to claim 2 , wherein:
the plurality of modules are fastened to the coupling seat unit by fastening members; and
a recess is formed on a surface of the groove portion, the surface being opposite to the longitudinal opening portion, the recess opposing to a portion of the fastening member, the portion projecting from the coupling seat unit.
7. The railcar bodyshell according to claim 1 , wherein the elongated member includes another groove portion for attaching a device to the elongated member, the another groove portion extending in the car longitudinal direction.
8. The railcar bodyshell according to claim 1 , wherein the coupling seat is movable relative to the elongated member.