Land vehicles: bodies and tops – Bodies – Passenger bus body
Patent
1997-06-09
1999-12-07
Pedder, Dennis H.
Land vehicles: bodies and tops
Bodies
Passenger bus body
296205, 527316, 527376, B62D 2500
Patent
active
059970758
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The invention relates to a beam made of metal intended to be included as a construction element in a coachwork body for buses, trams and similar vehicles in order to be connected, in the coachwork body, to other profiled elements which extend at right angles to said beam. The invention also relates to the coachwork, in the coachwork body of which said beam is included as a construction element.
STATE OF THE ART
Beams of the type indicated above, and likewise coachwork bodies in which such beams are included as construction elements, are already known from e.g. DE-A-27 12 752, U.S.A. 4 425 001 and SE 466 798.
BRIEF DESCRIPTION OF THE INVENTION
The aim of the invention is to offer improvements in relation to known art. More specifically, it is to offer a beam which can be arranged in the longitudinal upper and/or lower corners of the coachwork body. In relation to the construction according to the said SE 466 798, the invention aims to offer a beam of relatively simple design at the same time as it has advantages in terms of strength and can fulfil a number of functions which in the known coachwork construction have required a number of interacting longitudinal beams. In particular, the invention relates to a beam which is suitable to form part of an adhesively bonded coachwork body.
This and other aims can be achieved by the invention being characterized by what is indicated in the subsequent patent claims. Further characteristics and aspects of the invention emerge from the following description.
BRIEF DESCRIPTION OF THE FIGURES
In the following description, reference will be made to the attached drawing figures, of which
FIG. 1 represents a vertical section through a side of a coachwork, showing the upper and lower corner pans of the coachwork body, which include longitudinal beams according to a first and, respectively, a second preferred embodiment of the beam according to the invention, and in which parts which are non-essential to an understanding of the invention have been omitted in order that what is essential appears more clearly,
FIG. 2 represents a view II--II in FIG. 1,
FIG. 3 represents a view III--III in FIG. 1,
FIG. 4 is a perspective view of a lower corner beam,
FIG. 5 is a perspective view of an upper corner beam, and
FIG. 6 is a perspective view of a beam intended to connect side walls and intermediate deck in a double-deck bus.
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1, the lower part of the figure shows the lower longitudinal corner in a coachwork body for a bus, i.e. the corner between the long side of the bus and the floor above the chassis of the bus. In this corner, there is a lower corner beam 1 according to a first embodiment of the beam according to the invention. The upper part of FIG. 1 shows in cross-section the upper longitudinal corner of the bus, i.e. the corner between the side and roof of the bus, which includes an upper corner beam 2 according to a second embodiment of the beam according to the invention.
The lower corner beam 1 has in profile a closed polygon, more specifically a closed triangle 3 in one corner of the profile. This part of the beam therefore has the form of a box girder of triangular section. According to the embodiment, the triangle 3 consists of an right-angled isosceles triangle. The hypotenuse of the triangle forms an outer corner side 4 on the beam. The two catheti 5 and 6 form a second, horizontal side 5 and, respectively, a third, vertical side 6. The outer corner side 4 extends between a first 7 and a second 8 corner of the triangle. The third corner 9 is the right-angled one.
According to the embodiment, the closed triangle 3 is empty, i.e. it is not divided into sections by partitions or in another manner, e.g. filled with plastic foam or the like, although this possibility is not excluded within the context of the invention. However, the strength-increasing effect which such partitions and filling, respectively, would be capable of providing is not in proportion to the increase in cost such a complication wo
REFERENCES:
patent: 2460982 (1949-02-01), Gilpin
patent: 4974900 (1990-12-01), Destefani et al.
patent: 5042395 (1991-08-01), Wackerle et al.
patent: 5287813 (1994-02-01), Hanni et al.
patent: 5320403 (1994-06-01), Kazyak
patent: 5338080 (1994-08-01), Janotik et al.
Dunder Vilho
Maattanan Mauri
Dunder Trading I Haparanda Aktiebolag
Pedder Dennis H.
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