Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
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Description
Multifunctional fastening profile
The present invention relates to multifunctional fixing
profile-members for assembling a subassembly in the underfloor
region of a rail vehicle.
In modern rail vehicle construction, a large number of
extremely different subassemblies have to be assembled in the
underfloor region of the rail vehicle. Examples of such
subassemblies assembled in the underfloor region of rail
vehicles are elements of the compressed air or braking system,
drive, vehicle box structure reinforcement, fresh water and
waste water tank, elements of the heating system, or
operationally technical electrical devices. Naturally, those
different subassemblies have different geometric formations and
constructions. This results in those subassemblies previously
having to be fixed by means of complex devices which are
individually dependent on the subassembly and having to be
secured to prevent inadvertent release. This means that there
are used, for the different subassemblies which are intended to
be fixed in the underfloor region of rail vehicles, individual
profile-members which are provided with fixing solutions which
are adapted to the subassembly. In the case of a large number
of subassemblies which are intended to be installed in the
region of the floor, therefore, it becomes necessary to produce
and store a large number of different assembly carriers which
are individualized for the respective subassembly and the rail
vehicle type. This results in both great technical complexity
in production terms and logistical complexity.
Therefore, an object of the present invention is to provide
means for the simplified and logistically optimized assembly of
subassemblies in the underfloor region of rail vehicles.
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This object is achieved by a fixing profile-member according to
claim 1.
According to the invention, consequently, a multifunctional
fixing profile-member is proposed for assembling a subassembly
in the underfloor region of a rail vehicle, having at least one
standardized fixing solution by means of which the subassembly
can be releasably connected to the fixing profile-member, and
having a first connection region, by means of which the fixing
profile-member can be connected in a materially engaging manner
to a longitudinal carrier in the underfloor region of the rail
vehicle, and having a connection region by means of which the
fixing profile-member can be connected in a materially engaging
manner to the floor of the rail vehicle.
The fixing profile-member according to the invention may
advantageously be fixed in a materially engaging manner at any
location of the bogie to a longitudinal carrier and the floor
of the rail vehicle, wherein the subassemblies to be assembled
can be releasably fitted to the rail vehicle by means of the
standardized fixing means of the fixing profile-member. It is
thereby no longer necessary to store a large number of fixing
profile-members which are individualized with respect to the
subassembly and the rail vehicle type, but instead it is
sufficient to store only one universally usable fixing profile-
member.
Examples of the standardized fixing solutions which can be
provided in the fixing profile-member according to the
invention are threaded holes, through-holes for receiving
fixing bolts, such as, for example, studs, cable eye
reinforcement members, lugs, threaded rods, or the like. Such
fixing solutions are preferably suitable for releasably fixing
a subassembly to the fixing profile-member by means of a non-
positive-locking connection. Furthermore, there may also be
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provided means for the positive-locking connection of the
subassemblies to the fixing element.
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The fixing profile-member according to the invention preferably
has a relatively great thickness in order, on the one hand, to
provide sufficient mechanical stability for fixing heavier
subassemblies and, on the other hand, to be able to provide the
greatest possible compensation for tolerances during the
assembly of the subassemblies. A relatively large thickness is
intended to be understood to be a thickness in a range between
and 30 mm in this instance.
The subassemblies may be fitted in the underfloor region of the
rail vehicle by means of one or more of the fixing profile-
members according to the invention which at any location of a
longitudinal carrier in a materially engaging manner,
preferably by means of welding techniques. It is thereby
possible to be able to freely position the subassemblies in the
underfloor region even afterwards, that is to say that it is
not necessary already to provide receiving locations for
subassemblies during the assembly of the undercarriage on the
longitudinal carriers. The assembly flexibility is thereby
increased and standardized structural elements can also be used
for the longitudinal carriers.
According to an embodiment of the invention, the fixing
profile-member has in cross section two members which are
arranged in a substantially L-shaped manner relative to each
other. The term "in a substantially L-shaped manner" is
intended to be understood to mean that the angle at which the
two members strike each other is in a range between 70 and
110 .
In another embodiment of the fixing profile-member according to
the invention, the connection regions are constructed at the
ends of the members of the fixing profile-member in such a
manner that a connection region has an abutment face which is
formed parallel with the longitudinal extent of the
longitudinal carrier and a seam face which forms an angle
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between 500 and 700 relative to the abutment face, and another
connection region has an abutment face which is formed parallel
with the plane of the floor and a seam face which forms an
angle between 50 and 70 relative to the abutment face. As a
result of such an embodiment
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of the fixing profile-member, it is advantageously possible to
connect the fixing profile-member in the region of the seam
faces to the longitudinal carrier and the floor in a materially
engaging manner, for example, by means of welding, while the
abutment faces ensure a reliable orientation of the fixing
profile-member relative to the longitudinal carrier and the
floor.
As a result of the angle of the seam face relative to the
longitudinal carrier or floor, which angle is provided in the
previously mentioned embodiment, it is possible, for example,
to fix the fixing profile-member by means of a high-strength
weld seam to the longitudinal carrier and/or the floor, wherein
the angle of the weld face and the resultant geometry of the
weld seam ensure good dissipation of the occurring mechanical
forces into the longitudinal carrier or the floor,
respectively.
According to another embodiment of the invention, there is
provision for a groove to be formed between the abutment faces
and the seam faces. An optimized formation of the weld seam
root is thereby achieved.
According to another embodiment of the invention, the abutment
faces are arranged so as to be offset relative to the
longitudinal axis of the members. The arrangement of the
abutment faces so as to be offset relative to the longitudinal
axis of the members allows improved accessibility to the seam
face and further optimizes the force transmission from the
fixing profile-member into the longitudinal carrier, in
particular in a vertical direction.
In a preferred embodiment of the invention, the at least one
standardized fixing solution comprises a hole, a thread or a
possible screwing connection. The provision of such
standardized fixing solutions allows the universal
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applicability of the profile-member for a large number of
different subassemblies. There may particularly be provision
for the fixing profile-member to provide for a plurality of
different fixing solutions, whereby the flexibility and the
application possibilities of the fixing
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profile-member are further increased. This again reduces the
logistical complexity and thus optimizes the production
process. The fixing solutions provided in the fixing profile-
member are preferably selected in such a manner that all the
subassemblies which are intended to be provided in the
underfloor region of a rail vehicle can be assembled or fixed
with a universally usable profile-member.
According to another embodiment of the fixing profile-member,
it can be fixed to the longitudinal carrier by means of a weld
seam and to the floor by means of a weld seam or at least one
welding spot.
In a particularly preferred embodiment of the invention, the
fixing profile-member is in the form of an extruded profile-
member. This advantageously allows simple production of the
fixing profile-members in large batch numbers. To this end,
there is pressed an extruded profile which corresponds to the
cross section of the fixing profile-member and which is then
divided into suitable part-pieces, for example, by means of a
saw, water-jet cutting, plasma cutting or the like. The
production of the fixing profile-member as an extruded profile-
member also results in an optimized grain structure of the
material, from which the fixing profile-member is produced,
whereby in particular the occurrence of stress cracks as a
result of the welding of the profile-member to the longitudinal
carrier and/or the floor can be prevented.
It is particularly preferable for the fixing profile-member to
comprise an aluminum material such as, for example, an aluminum
alloy. Examples of suitable aluminum alloys are the alloys in
accordance with EN 13981-1.
The present invention further also relates to the use of a
fixing profile-member as described above for the underfloor
assembly of a subassembly in a rail vehicle.
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The invention is explained in greater detail below with
reference to Figures, in which:
Figure 1 shows the assembly position of an embodiment of a
fixing profile-member according to the invention in the
underfloor region of a rail vehicle;
Figure 2 is a cross section of an embodiment of a fixing
profile-member according to the invention;
Figure 3 is a detailed view of the connection region of a
preferred embodiment of a fixing profile-member according to
the invention;
Figure 4 is a detailed view of the standardized fixing means in
an embodiment of a fixing profile-member according to the
invention.
Figure 1 shows the assembly position of an embodiment of a
fixing profile-member 100, 101 according to the invention in
the underfloor region of a rail vehicle 900. The
multifunctional fixing profile-member 100, 101 serves to fix a
subassembly, such as, for example, an element of the compressed
air or braking system, drive, vehicle box structure
reinforcement, fresh water and waste water tank, an element of
the heating system, or an operationally technical electrical
device in the underfloor region of the rail vehicle 900. The
fixing profile-member 100, 101 has at least one standardized
fixing solution 110, 111, by means of which the subassembly can
be releasably connected to the fixing profile-member 100.
Examples of such standardized fixing solutions are threaded
holes, through-holes for receiving fixing bolts, such as, for
example, studs, cable eye reinforcement members, lugs, threaded
rods, or means for connecting the subassembly in a positive-
locking manner to the fixing profile-member. The fixing
profile-member 100, 101 further has a first connection region
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130, by means of which the fixing profile-member 100, 101 can
be connected to a longitudinal carrier 920 in the
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underfloor region of the rail vehicle 900 in a materially
engaging manner. The fixing profile-member 100, 101 can be
connected in a materially engaging manner to the floor 930 of
the rail vehicle 900 via another connection region 140. A
materially engaging connection is preferably brought about by
means of welding.
Figure 2 is a cross section of an embodiment of a fixing
profile-member 100 according to the invention. The fixing
profile-member 100 has an L-shaped cross section having a
longer member 144 and a shorter member 134. Connection regions
130, 140 are at the end of the members 134, 144. The fixing
profile-member 100 is welded to a longitudinal carrier 920 in
the underfloor region of the rail vehicle via the connection
region 140. The fixing profile-member 100 is welded to the
floor 930 of the rail vehicle via a second connection region
130. The connection region 130 is constructed at the ends of
the member 134 of the fixing profile-member 100 in such a
manner that the connection region 130 has an abutment face 131
which is formed parallel with the longitudinal extent of the
longitudinal carrier 920 and a seam face 132 which forms an
angle between 50 and 70 with respect to the abutment face
131. The connection region 140 is formed at the end of the
member 144 of the fixing profile-member 100 in such a manner
that it has an abutment face 141 which is formed parallel with
the plane of the floor and a seam face 142 which forms an angle
between 50 and 70 with respect to the abutment face 141. The
abutment faces 131, 141 are formed in such a manner that the
fixing profile-member can preferably be fixed to the
longitudinal carrier 920 by means of a high-strength weld seam
and to the floor 930 by means of a high-strength welding spot
or a high-strength weld seam. The abutment faces 131, 141 are
arranged offset relative to the respective longitudinal axis of
the members 134, 144, whereby improved accessibility to the
seam faces 131, 141 and improved force dissipation from the
fixing
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profile-member 100 into the longitudinal carrier 920 are
achieved.
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Figure 3 is a detailed view of a connection region 130 of the
member 134 of a preferred embodiment of a fixing profile-member
100 according to the invention. The connection regions of the
two members of the fixing profile-member are preferably
constructed identically with regard to the profile thereof. A
groove 133 is formed between the abutment face 131 and the seam
face 132. Optimized formation of the weld seam root or a high-
strength weld seam is thereby achieved. The fixing profile-
member is connected to the floor 930 by the placement of a
welding spot or a weld seam in the region of the seam face 132.
Figure 4 is a detailed view of the standardized fixing means
110, 111 in an embodiment of a fixing profile-member 100
according to the invention. A threaded hole 111 and a through-
hole 110 are shown by way of example as standardized fixing
solutions. It is possible to screw screws into the threaded
hole 111 in order to releasably fix subassemblies. There is
preferably provision for the fixing profile-member 100 to have
a plurality of fixing solutions 110, 111 at different locations
of the profile-member in order to obtain an application range
which is as large as possible for the fixing profile-members.
The through-hole 110 is suitable for receiving fixing bolts,
such as, for example, studs.
