Railway rolling stock – Car framing and structure – Passenger
Reexamination Certificate
1998-11-06
2001-05-08
Morano, S. Joseph (Department: 3617)
Railway rolling stock
Car framing and structure
Passenger
C105S396000, C105S397000, C105S404000, C105S409000, C105S355000, C105S329100, C296S190050, C296S190050, C296S193040
Reexamination Certificate
active
06227125
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a coach body of a rail vehicle, which substantially comprises horizontal and vertical walls, wherein the horizontal walls serve to form both a floor and a ceiling and the vertical walls, in particular forming side walls, include cutouts that allow at least one window and one boarding door to be installed.
In rail vehicles, it is well known to embody the horizontal and vertical walls of the coach body by welded steel construction, using rolled, square and hollow steel sections with sheet metal welded directly onto such a skeleton. Depending on its design, such as the number and arrangement of windows and boarding doors, such a coach body is as a rule suitably for only one particular application. Any changes in this design, for instance by a different placement of the boarding doors, means a new static concept and often requires extensive structural adaptations. The aforementioned steel construction of a coach body is also complicated in terms of production and unfavorable from the standpoint of having relatively high vehicle mass.
German Patent Disclosure DE-B 1 158 541 discloses a coach body of a rail vehicle in the prior art that substantially comprises horizontal and vertical walls. The horizontal walls serve to form both a floor and a ceiling. The vertical walls, which in particular form side walls, contain cutouts that allow windows and boarding doors to be installed. The horizontal and vertical walls are formed by half-modules of fiber-reinforced plastic divided sectionally crosswise to the longitudinal axis of the vehicle; each of these modules has a structural length equivalent to the length of the coach body. As a result, very large equipment is needed for manufacturing them (see FIG. 13 of DE-B 1 158 541).
SUMMARY OF THE INVENTION
The object of the invention is to embody a coach body of this generic type with a view to the simplest possible economical production and a reduction in vehicle mass, in which the coach body should enable a high degree of flexibility in designing the rail vehicle.
According to the invention, this object is attained in that the horizontal and vertical walls are formed by half-modules of fiber-reinforced plastic divided sectionally crosswise to the longitudinal axis of the vehicle, where two of these half-modules, which are complementary to one another and are joined in a force-transmitting way at their horizontal walls that meet in the vehicle middle, form one longitudinal section of the coach body, and the length of the coach body can be designed accordingly by force-transmitting connection of a number of aforementioned longitudinal sections at their abutting points extending all the way around in the transverse direction of the vehicle.
Advantageous features of the invention are recited in the dependent claims.
The advantages attainable with the subject of the invention are in particular as follows:
The half-modules allow great flexibility in vehicle design, because any desired configuration of a coach body in its longitudinal and transverse directions can be realized. The relatively short half-modules of fiber-reinforced plastic can be produced simply and economically, and compact, easily manipulated devices can be employed for their production. Lower production costs for the coach body are also attained because there is no need to line the inside of the modules and to treat the outer surfaces for applying a flat coating over a large area. A reduction in the vehicle mass is also favorable, because energy costs for transportation can then be saved. The modules of fiber-reinforced plastic are free from corrosion and can thus be used without maintenance.
The novel features which are considered as characteristic for the present invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
, a rail vehicle with a coach body according to the invention in a side view;
FIG. 2
, a portion of the coach body according to the invention in a perspective view;
FIG. 3
, the section taken along the line A—A of
FIG. 2
;
FIG. 4
, the section taken along the line B—B of
FIG. 2
;
FIG. 5
, an alternative design, in section similar to that of FIG.
3
.
REFERENCES:
patent: 2496910 (1950-02-01), Fridolph
patent: 3100458 (1963-08-01), Baker et al.
patent: 4283086 (1981-08-01), Morin
patent: 5458066 (1995-10-01), Ishida et al.
patent: 5857414 (1999-01-01), Thoman et al.
patent: 2050275 (1979-05-01), None
patent: 2050275 (1981-01-01), None
Koeppe Matthias
Muehlhahn Dieter
Schroeder Karl-Josef
Jules Frantz F.
Morano S. Joseph
Siemens Duewag Schienenfahrzeuge GmbH
Striker Michael J.
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