Stock material or miscellaneous articles – All metal or with adjacent metals – Plural layers discontinuously bonded
Patent
1997-04-01
1999-08-03
Thomas, Alexander
Stock material or miscellaneous articles
All metal or with adjacent metals
Plural layers discontinuously bonded
428120, B32B 326
Patent
active
059323582
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a surface component in particular to a structural wall support of wagon boxes or rail vehicles. More particularly, the present invention refers to a surface component of a type having a sheet metal structure and sectional members for stiffening the sheet metal structure, with the sectional members including at least one profile web oriented perpendicular to the sheet metal structure, wherein profile legs abutting the sheet metal structure are welded to the sheet metal structure at spaced weld points.
It is known that surface components of this type can be constructed by welding sheet metal to the profile leg using discontinuous fillet welds in order to keep the sink marks of the weld seams which appear on the outside of the sheet metal, as small as possible. This has the disadvantage that over the entire length of the profile legs, the profile leg and the sheet metal form double walls which have to be well sealed with a sealing compound in order to prevent corrosion. The problem here is to ensure that all areas having double-wall metal parts are completely sealed. Another disadvantage lies in the considerable difficulty to shape the sheet metal accurately or sufficiently in the sections where the sheet metal has a continuous double wall and is partly provided with weld seams.
SUMMARY OF THE INVENTION
It is therefore an object of the invention, to improve a surface component of the aforedescribed type in such a way that sealing of the discontinuous weld seams can be eliminated entirely or almost entirely, and that the sheet metal can be much more easily straightened or adjusted in order to achieve an exact form fit.
This object is attained in accordance with the present invention by providing the sectional members at least at the profile legs with cut-outs at formation of segments therebetween, and by welding the segments to the sheet metal structure for attachment of the sectional members.
Although there are known profile sections with cut-outs disposed on the sheet metal, these cut-outs are only openings for intersecting profile sections. The invention, however, is based on the concept that as a result of the cut-outs provided in the profile legs which are not welded together, the sheet metal is no longer double-walled between the profile leg and the sheet metal and, on the other hand, the areas which include the profile legs located between the cut-out and welded to the sheet metal, can be aligned much more easily than if the profile legs were continuous. The sheet metal, however, may also be aligned from the inside through the cut-outs. The location of the sections of the weld seams is predetermined by the sections of the legs of the profile abutting the sheet metal, thereby eliminating the need to measure and mark the sections of the weld seams. The weld seams may be implemented in such a way that there is no longer a need for any sealing measures. Since the profiles are connected only in certain sections with the wide openings formed by the cut-outs in the profile sections, heat conduction through the profile sections to the inside is significantly reduced. The air used for heat insulation of the wall can circulate better in the profile sections due to the openings created by the cut-outs, preventing condensation. Since the profile sections are connected only in certain sections and because double-walls are avoided in areas where the profile sections are not welded, the sound transmission from the sheet metal via the profile sections to the inner wall covering is also significantly reduced.
According to a preferred embodiment, the profile sections are formed in such a way that the profile legs disposed between the profile webs oriented perpendicular to the sheet metal and the sheet metal itself form an angle with the perpendicular profile webs of greater than 90.degree.. As a result of the angled arrangement, the profile legs can be easily bend from both the inside and the outside when the sheet metal requires adjustment.
Preferably, the leading
REFERENCES:
patent: 2960197 (1960-11-01), Langhans
patent: 3639106 (1972-02-01), Yate
patent: 4607783 (1986-08-01), Mansbridge et al.
Feiereisen Henry M.
Krauss-Maffei Verkehrstechnik GmbH
Thomas Alexander
LandOfFree
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