U.S. patent application number 10/113712 was filed with the patent office on 2002-08-22 for roof unit and basic structure of a road-bound vehicle.
This patent application is currently assigned to Alusuisse Technology & Management AG. Invention is credited to Deflorin, Duri, Muller, Wolfgang, Wieschermann, Jochen.
Application Number | 20020113464 10/113712 |
Document ID | / |
Family ID | 25687281 |
Filed Date | 2002-08-22 |
United States Patent
Application |
20020113464 |
Kind Code |
A1 |
Wieschermann, Jochen ; et
al. |
August 22, 2002 |
Roof unit and basic structure of a road-bound vehicle
Abstract
The invention relates to a method for mounting a self-supporting
vehicle roof (1) onto a body of a motor vehicle (2). The mounting
method according to the invention utilizes a special,
self-supporting roof construction of so-called sandwich type, which
enables a complete roof (1), comprising both inner roof and outer
roof, to be mounted as one of the last components in an assembly
line for motor vehicles. After having been mounted, vehicle roofs
(1) of the type which is utilized in the method according to the
invention will constitute an integrated, load-bearing part of a
vehicle body of a motor vehicle.
Inventors: |
Wieschermann, Jochen;
(Salem, DE) ; Deflorin, Duri; (Richterswil,
CH) ; Muller, Wolfgang; (Beckingen, DE) |
Correspondence
Address: |
Klaus P. Stoffel, Esq.
Cohen, Pontani, Lieberman & Pavane
5514 Fifth Avenue, Suite 1210
New York
NY
10176
US
|
Assignee: |
Alusuisse Technology &
Management AG
|
Family ID: |
25687281 |
Appl. No.: |
10/113712 |
Filed: |
April 1, 2002 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
10113712 |
Apr 1, 2002 |
|
|
|
09719941 |
Dec 18, 2000 |
|
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Current U.S.
Class: |
296/210 |
Current CPC
Class: |
B62D 23/005 20130101;
B62D 25/06 20130101; Y10T 29/49829 20150115; Y10T 29/49622
20150115; B62D 65/00 20130101 |
Class at
Publication: |
296/210 |
International
Class: |
B60J 007/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 18, 1998 |
CH |
1309/98 |
Claims
1. Process for manufacturing a vehicle body with a roof unit (23)
containing an outer skin (13) and an inward facing ceiling (14), or
an outer skin (13) and an inward facing ceiling (14) with a ceiling
frame (15), whereby the roof unit (23) is in the form of a unit
ready for installation, and a basic structure (10), and the ceiling
(14) and the outer skin (13) along with the basic structure (10)
feature configurations (30) for joining that mate with each other
at their mutual places for joining, this for a body of a road-bound
vehicle fitted together horizontally, characterised in that the
ceiling (14) is introduced through the opening for the rear or
front window and, by means of an upward movement, is brought into
contact with the matching configuration points (30) for connection
on the longitudinal frames (16) at the side and/or the front and
rear cross members (11, 12) where it is fixed and, in a further
step, the outer skin (13) is lowered onto the corresponding
matching configuration points (30) for connection to the
longitudinal frames (16) at the side and onto the front and rear
cross members (11, 12), and secured there by permanent joining.
2. Process for manufacturing a vehicle body with a roof unit (23)
containing an outer skin (13) and an inward facing ceiling (14), or
an outer skin (13) and an inward facing ceiling (14) with a ceiling
frame (15), whereby the roof unit (23) is in the form of a unit
ready for installation, and a basic structure (10), and the ceiling
(14) and the outer skin (13) along with the basic structure (10)
feature configurations (30) for joining that mate with each other
at their mutual places for joining, this for a body of a road-bound
vehicle fitted together horizontally, characterised in that, the
ceiling frame (15) is introduced through the opening for the rear
or front window and, by means of an upward movement, is brought
into contact with the matching configuration points (30) for
connection on the longitudinal frames (16) at the side and/or the
front and rear cross members (11, 12) where it is fixed and, in a
further step, the ceiling (14) and the ceiling frame (15) are
lowered followed by the roof skin (13) onto the corresponding
matching configuration points (30) for connection to the
longitudinal frames (16) and the side and onto the front and rear
cross members (11, 12), and secured there by permanent joining.
3. Process for manufacturing a vehicle body with a roof unit (23)
according to claim 2, characterised in that the ceiling (14) and
the outer skin (13) are joined together as a unit and this unit is
lowered onto the ceiling frame (15) and the corresponding matching
configuration points (30) for connection on the longitudinal frames
(16) at the side and the front and rear cross members (11, 12), and
secured there by permanent joining.
4. Process for manufacturing a vehicle body with a roof unit (23)
containing an outer skin (13) and an inward facing ceiling (14), or
an outer skin (13) and an inward facing ceiling (14) with a ceiling
frame (15), whereby the roof unit (23) is in the form of a unit
ready for installation, and a basic structure (10) and the ceiling
(14) and the outer skin (13) along with the basic structure (10)
feature configurations (30) for joining that mate with each other
at their mutual places for joining, this for a body of a road-bound
vehicle fitted together horizontally, characterised in that the
roof unit (23) containing the outer skin (13) with configuration
(30) for joining, the ceiling (14) or the ceiling (14) and the
ceiling frame (15), in each case with fittings already mounted in
place, is introduced through the opening between the longitudinal
frames (16) and, by means of an upward movement, is brought into
contact with the corresponding, matching configuration points (30)
and permanently joined there.
5. Process for manufacturing a vehicle body with a roof unit (23)
containing an outer skin (13) and an inward facing ceiling (14), or
an outer skin (13) and an inward facing ceiling (14) with a ceiling
frame (15), whereby the roof unit (23) is in the form of a unit
ready for installation, and a basic structure (10) and the ceiling
(14) and the outer skin (13) along with the basic structure (10)
feature configurations (30) for joining that mate with each other
at their mutual places for joining, this for a body of a road-bound
vehicle fitted together horizontally, characterised in that, the
side wall columns (24, 25, 26, 27) of the basic structure (10)
exhibit a configuration (30) for connecting purposes and the roof
unit (23) has fittings installed and the roof unit (23) exhibits a
ceiling (14) or the ceiling (14) and a ceiling frame (15), and a
configuration (30) for connecting to the side wall columns (24, 25,
26, 27) is provided on the ceiling (14) or ceiling frame (15) and,
by lowering, raising or inserting the roof unit (23) from the front
or rear, the mutual configurations (30) for connecting purposes are
brought together and joined permanently with each other.
6. A roof unit (23) containing an outer skin (13) and an inward
facing ceiling (14), or an outer skin (13) and an inward facing
ceiling (14) with a ceiling frame (15), whereby the roof unit (23)
is in the form of a unit ready for installation, and a basic
structure (10), whereby the ceiling (14) and the outer skin (13)
along with the basic structure (10) feature configurations (30) for
joining that mate with each other at their mutual places for
joining, this for a body of a road-bound vehicle fitted together
horizontally, characterised in that, the ceiling (14) contains one
or more fittings of the following type viz., ceiling cover,
interior cladding, cushioning against impact, sun shields, interior
back-mirror, interior lighting, wiring, operating and display
elements, sliding, raising, folding, lamellar and glass roofs, and
their frame parts and drive elements, and roof hand grips.
7. A roof unit (23) containing an outer skin (13) and an inward
facing ceiling (14), or an outer skin (13) and an inward facing
ceiling (14) with a ceiling frame (15), whereby the roof unit (23)
is in the form of a unit ready for installation, and a basic
structure (10), whereby the ceiling (14) and the outer skin (13)
along with the basic structure (10) feature configurations (30) for
joining that mate with each other at their mutual places for
joining, this for a body of a road-bound vehicle fitted together
horizontally, characterised in that, the ceiling (14) has a
sandwich structure comprising a middle layer of foam, with on one
or both sides fibre mats or fleeces of glass fibres and on one or
both sides plastic films, cover films and/or decorative or
functional overlays.
Description
[0001] The present invention relates to a process for manufacturing
a vehicle body with a roof unit containing an outer skin and an
inward facing ceiling, or an outer skin and an inward facing
ceiling with a ceiling frame, whereby the roof unit is in the form
of a unit ready for installation and, a basic structure, and the
ceiling and the outer skin along with the basic structure feature
configurations for joining that mate with each other at their
mutual places for joining, this for a body of a road-bound vehicle
fitted together horizontally, and particular roof units.
[0002] It is known that manufacturing concepts for powered vehicles
make use of individual modules that can be assembled separately.
This concerns in particular the whole of the dashboard including
the cockpit. Further, described in the book Horst Pippert,
Karosserie-technik, Vogel-Fachbuch, Vogel Publishers, Wurzburg,
1989, pp 242 and 244, is that horizontal separation of the roof and
base units can be useful. Before final assembly, individual
fittings may be readily added to the base unit. A process for
manufacturing a horizontally separated vehicle body is described in
EP-B 0 250 678.
[0003] Known from DE 79 29 367 U is a roof structure for powered
vehicles having an outer skin and a roof frame that form a unit
which can be attached to the columns of the vehicle body. The outer
skin of the roof is joined along its edges to a profiled section
frame, which is attached to the columns of the vehicle body.
[0004] Separate manufacture of roof and floor units or basic
structure was hardly adopted for series production purposes as the
fitting together and joining of the roof to the base unit is
difficult, or at least complicated, and the overall stability of a
vehicle body--and with that its structural strength--is made worse
compared with a body with side walls reaching up to the roof
[0005] Methods of manufacturing the rough bodywork from floor units
and outer sheets suffer the disadvantage that the subsequent
fitting out of the vehicle, e.g. installing all components in the
region of the roof and the window posts, involves mounting or
fitting these from the inside of the body frame. The freedom of
movement for a person or a machine in a finished vehicle body is
very limited. Consequently, manual work is tiresome, and in some
cases it is not possible to make use of robots.
[0006] The object of the present invention is to propose a process
for manufacturing a vehicle body with a roof unit and a base unit
or basic structure for a horizontally joined body of a road-bound
vehicle, such that the roof unit makes manufacturing simple, and
the joining of the roof unit and the basic structure is easy, in
particular in conveyor-belt series production.
[0007] That objective is achieved by way of a process described in
claims 1, 2, 4 and 5 and by particular roof units according to the
claims 6 and 7.
[0008] Preferably, at least the outer side of the roof unit bears a
coating of paint, wholly or partially, on the parts that are
visible from the outside or are exposed to weathering. The paint
may be a single or multi-layer coating e.g. of undercoat, filler,
top coat and/or a transparent organic coating etc. The paint can
therefore already be applied to the roof unit prior to joining the
basic structure and roof unit.
[0009] The roof unit may contain e.g. the outer skin or the outer
skin with longitudinal and/or cross member(s) and the ceiling, if
desired also a frame for the ceiling. The roof unit may also be
essentially a single shaped part making up the outer skin and the
ceiling. Further, the roof unit may feature means for joining the
longitudinal frame, the transverse frame and/or the side wall
columns such as A, B, C and if present, D columns, window frames,
especially those for fixed stationary windows or frameless windows
in the doors. The roof unit may also contain components such as
roofs that slide open, can be raised, folded and lamella type
roofs, or rigid or moveable glass roofs and their frame parts, also
elements for moving the same, roof-rack rails, antennae, and
interior fittings such as covering materials, hand grips in the
roof area, sun blinds, interior lighting, cables, operating and
display elements, modules for series-type airbags at the sides,
window airbags, head/shoulder airbags etc.
[0010] The base unit or basic structure may e.g. be in any
prefabricated form. Preferred is a base unit--with respect to the
interior fittings--such featuring wiring, floor covering, seats,
operating elements, instruments etc.--to a large degree
prefabricated, in order to minimise further work-steps in the
vehicle interior formed by joining the roof and base units or basic
structure.
[0011] The outer roof skin and also the ceiling frame may be made
up of one or more parts and of various materials. Suitable
materials are metals, plastics or combinations thereof. Preferred
metals are ferrous and non-ferrous materials, in particular light
weight metals. Included in the group of light weight metals are
aluminium and its alloys and magnesium and its alloys. The outer
skin of metal may be in the form of sheet or--in particular in the
case of aluminium or magnesium--in the form of a foamed shaped body
or extruded section Ceiling frames may be e.g. of metal in
particular aluminium or magnesium or their alloys and as stamped,
pressed or extruded parts. Examples of plastic-based materials for
outer roof skins, ceiling and ceiling frames are polyamides,
including polyamides of diamines and aromatic dicarbonic acid
(Aramides), polyesters, epoxy resins, polyurethanes,
polyvinylchlorides, polycarbonates, acrylnitrile-styrene
copolymers, acrylnitrile-butadiene-s- tyrene copolymers (ABS),
polyolefins etc. The plastics may be fibre-reinforced
plastics--such as plastics reinforced with glass or carbon fibres.
The plastics may contain filler materials. The plastics may be in
foamed of non-foamed state, including closed cell and open cell
foams and may be present both as hard or soft foams. The outer roof
skin, the ceiling and the ceiling frames may also be made up of a
combination of metals and plastics such as composites, also known
as laminates or sandwich materials. The composites may have various
plastic layers or feature at least one sheet or section of metal
and at least one plastic layer. The ceiling frame may be a shaped
part of plastic such as in injection moulded part, a foamed shaped
part or may be of metal in particular light weight metals such as
aluminium or magnesium in the form of a stamped, pressure diecast
part or as an extruded section, or a combination of plastic and
metal. The ceiling frame may be painted or covered with
material.
[0012] The outer roof skin may be in the form of a laminate with a
metal or plastic layer forming the outer side and, facing inwards,
at least one foamed or non-foamed plastic layer. The outer roof
skin and the ceiling and possibly the ceiling frame, as one and the
same shaped part or as separate shaped parts, may also be shaped
parts with integral foam with a closed, solid edge region
that--moving away from the edge, gradually has the form of a
fine-pored structure. Also, fibre matting with fibres of glass,
cotton, flax or coconut etc. may be provided between the roof outer
skin and the ceiling, or as ceiling itself or within a
ceiling-laminate, from case to case as desired. By appropriate
choice of layer thickness and materials laminates may in particular
be designed for optimal dampening of resonance and noise.
[0013] The ceiling may be a covering e.g. of leather, artificial
leather, textiles, plastic films etc. These materials may be drawn
over e.g. A shape-determining support of plastic, metal, foamed
mats, foamed bodies, stiffened fibre matting etc. The ceiling may
e.g. also be a shaped part of plastic, foamed plastic or integral
foam such as e.g. mentioned above for the roof outer skin. The
ceiling may have a sandwich structure comprising a middle layer of
foam e.g. polyurethane foam, fibre mats or fibre-glass fleece etc.,
on one or both sides and, may feature on one or both sides, plastic
films, cover and/or decorative or functional covers. The ceiling
may also include a ceiling frame.
[0014] The basic structure is closed off at the top by the ceiling
frame comprising e.g. longitudinal members at the side or
longitudinal members at the side with front and rear cross members
arranged between them, or with the side wall columns and front and
rear cross members.
[0015] Usefully, the roof unit contains the outer skin with
configuration for connecting to the ceiling frame, such as a
longitudinal member and/or a front and rear cross member and/or the
side wall columns such as A and C columns and if present B and D
columns.
[0016] The outer skin of the roof may e.g. also be a single piece
shaped part with configuration for connecting to the ceiling frame,
cross members and/or the side wall columns such as A and C columns
and if present B and D columns.
[0017] The roof unit preferably contains an outer skin and a
ceiling frame with longitudinal members arranged at the sides of
the outer skin and/or front and rear cross members. Another
preferred version is such that the roof unit contains the outer
skin and the ceiling frame, the ceiling frame being one single
shaped part.
[0018] Usefully, the outer skin and/or the ceiling frame contains
fittings. The fittings include e.g. one or more of the following
parts: ceiling cover, other interior cladding, cushioning against
impact, sun shields, interior back-mirror, interior lighting,
wiring, operating and display elements, sliding, raising, folding,
lamellar and glass roofs and their frame parts and corresponding
drive elements, roof hand grips etc. The outer skin may also
feature outward facing attachment means for antennae, roof fittings
such as luggage rack or rails.
[0019] Especially preferred are roof frames or side wall columns or
cross members that feature connecting elements to which the
corresponding configurations for connecting on the ceiling frame or
the outer skin may be attached. Suitable configurations for
connecting purposes on the ceiling frame or side wall columns or
cross members are bolting, riveting, form-fit, clip or push-fit
type connections etc. For example the configuration connecting
facility of the roof unit could be the means of attachment for the
roof hand grips and/or the sun shields. Belonging to the wiring in
the roof unit are in particular push-fit connections which are
preferably situated at the mutual joining points on the roof and
base units; the continuation of these is in the corresponding
wiring with corresponding push-fit connections in the basic
structure.
[0020] The scope of the present invention includes the production
of the horizontally assembled vehicle body comprising roof and
basic structure.
[0021] The production process is e.g. performed in such a manner
that the basic structure with respect to interior fittings such as
seats, dashboard, operating elements etc. is to a large extent
pre-fabricated. The basic structure terminates at the top e.g. with
the longitudinal members at the sides and, with respect to the
roof, a front and rear cross member. The ceiling, which in some
case contains a ceiling frame, is in introduced through the opening
for the rear or front window and, by means of an upward movement,
is brought into contact with the matching con-figuration points for
connection on the longitudinal frame members at the side and/or the
front and rear cross members where it is fixed into place. The
ceiling may already have fittings attached to it. The ceiling may
be connected to the longitudinal members and/or to the cross
members via configurations for joining such as bolting or push-fit
connections which are foreseen e.g. for attaching the hand grips
and/or the sun shields. Subsequently, further fittings may be added
as required. In a further step the outer skin is brought into
contact with the corresponding configuration for joining on the
longitudinal members at the side and the front and rear cross
members by lowering it, and then permanently attached there. The
outer skin may be attached by adhesive bonding, welding, bolting,
riveting, clamping, engaging by fit and shape, clinching or a
combination of the different means of attachment. Welding methods
are in particular friction welding, MIG, TIG or laser welding.
[0022] The production process is performed in another manner which
is e.g. such that the basic structure is to a large extent
pre-fabricated with respect to interior fittings such as seats,
dashboard, operating elements etc. The basic structure terminates
at the top e.g. with the longitudinal members at the sides and,
with respect to the roof, and a front and rear cross member. The
ceiling frame is in introduced through the opening for the rear or
front window and, by means of an upward movement, is brought into
contact with the corresponding configuration points for connection
on the longitudinal frame members at the side and/or the front and
rear cross members where it is fixed into place. The ceiling frame
may already have fittings attached to it. The ceiling frame may be
connected to the longitudinal members and/or to the cross members
via configurations for joining such as bolting or push-fit
connections which are foreseen e.g. for attaching the hand grips
and/or the sun shields.
[0023] Subsequently, further fittings may be added as required. In
a further step the ceiling is lowered onto the ceiling frame and in
some cases joined permanently to it. Finally the outer skin is
lowered onto the corresponding configuration for joining on the
longitudinal members at the side and the front and rear cross
members and permanently joined there. The outer skin may be
attached by adhesive bonding, welding, bolting, riveting, clamping,
engaging by fit and shape, clinching or a combination of the
different means of attachment. In this process it is also possible
to prefabricate the ceiling and outer skin by joining them together
to make a unit out of them, to lower this unit onto the ceiling
frame and the corresponding configuration for joining on the
longitudinal members at the sides and the front and rear cross
members, and thereafter to join them permanently together.
[0024] The production process is performed in yet another manner
which is e.g. such that the basic structure is to a large extent
prefabricated with respect to interior fittings such as seats,
dash-board, operating elements etc. The basic structure terminates
at the top e.g. with the longitudinal members at the sides. The
roof unit--comprising outer skin, ceiling or ceiling and ceiling
frame and a front and rear cross member, in each case with fittings
already mounted--is in introduced between the two longitudinal
members and, by means of an upward movement, is brought into
contact with the corresponding configuration points for connection
on the longitudinal frame members where it is fixed into place. The
ceiling or ceiling frame may be connected to the longitudinal
members via configurations for joining such as screw-type or
push-fit connections which are foreseen e.g. for attaching ceiling
hand grips. The ceiling is joined to the longitudinal members by
means of further configurations for that purpose e.g. by
interlocking by virtue of shape and fit. The further configuration
for joining may e.g. be in the form of a rib or ribs, or bulge or
bulges, running along the side of the outer skin and corresponding
groove or grooves, or rib or ribs, running along the longitudinal
members. Adhesive and/or sealing masses are preferably provided in
the region of the joint made by the rib and groove, or the bulge
and groove. Possible means of joining the longitudinal members and
the outer skin in the region of their mutual configuration for
joining are adhesive bonding, welding, clamping, clinching,
riveting, bolting, either alone or a combination of the different
means of attachment.
[0025] The production process is performed in yet another manner
which is such e.g. that the basic structure is to a large extent
pre-fabricated with respect to interior fittings such as seats,
dash-board, operating elements etc. The basic structure terminates
at the top e.g. with the side wall columns. The side wall columns
feature a configuration for attachment purposes.
[0026] The roof unit may be already feature fittings installed in
it. The roof unit features the ceiling or ceiling and ceiling
frame. A configuration for joining to the side wall columns is
provided on the ceiling or on the ceiling frame. For example by
lowering, raising or inserting the roof unit from the front or
rear, the points of mutual configuration are brought into contact
with each other and joined permanently together. Suitable
configurations for joining are tongue and groove, shoulder section
and contact strips, cogged sections, plugs such as conical plugs
and holes, wedges engaging in slits, channel sections that engage
on a projection etc.
[0027] Adhesive joints may be made using adhesives. Examples of
adhesives are--apart from the physical bonding adhesives--the
particularly suitable chemically bonding adhesives. Belonging to
the chemically bonding adhesives are reaction type adhesives such
as the two component adhesives with epoxy resins and acetic
anhydrides, epoxy resins and polyamines, polyisocyanates and
polyols or the single component adhesives cyanacrylates or
methacrylates, the two component adhesives out of unsaturated
polyesters and styrene or methacrylates, the single component
adhesives of phenoplasts and polyvinyl acetalene or
nitrile-caoutchoucs, the two component adhesive s of pyromellite
acetic anhydride and 4.4-diamineo-diphenylether forming polyinides
or of poly-benzimide-azoles. Adhesives that form duroplastics or
possibly elastic compounds are to be preferred.
[0028] At the areas or edges of contact between the roof and the
basic structure, and between the ceiling and ceiling frame,
provision may be made for clamping and/or sealing profiled
sections, edge sections, closing off sections etc., of elastic
materials, sealing strips or sealing masses etc.
[0029] The roof units according to the invention find preferential
application for road bound vehicles such as private cars and the
like or for the driver's cabin in lorries. Included in the category
of private cars are e.g. 2-door and 4-door limousines, two-seater
cars, estate cars, vans and small buses.
[0030] With the roof units described above it is possible to
fabricate the basic structure almost to completion, whereby the
roof initially remains open, and the opening in the roof remains
available as workspace and for introducing fittings. This provides
an efficient production method for fitting out the basic structure,
followed by simple addition of the roof unit to the basic
structure.
[0031] Various exemplified embodiments of the object of the
invention are explained in greater detail in the following with the
aid of drawings viz.:
[0032] FIGS. 1 to 4 showing the first version of the assembly of a
roof unit on a basic structure, the roof unit being mounted on the
basic structure in several steps.
[0033] FIGS. 5 to 7 showing a second version of the assembly of a
roof unit on a basic structure where the ceiling and outer skin
already form a unit with the basic structure prior to
installation.
[0034] FIGS. 8 to 13 showing a third version of the assembly of a
roof unit on a basic structure where the roof unit already contains
the ceiling, the ceiling frame, the outer skin and both cross
members and represents a complete unit. Apart from its installation
on the basic structure, the roof unit requires no further work to
it.
[0035] FIGS. 14 and 15 showing a fourth version of the assembly of
a roof unit on a basic structure where the roof unit contains the
complete roof frame
[0036] Shown in FIG. 1 is a basic structure 10 of a vehicle body
which already has the side wall columns 24, 25, 26, 27, the front
and rear cross frames 11 and 12 and the longitudinal frame members
16. The basic structure 10 may feature further component parts; as
these are not pertinent to the object of the invention they not
shown here.
[0037] FIG. 2 shows a cross-section through a longitudinal frame
member 16 which represents the upper limit of the basic structure
10. The longitudinal frame features an extrusion seal 19, and a
connecting element 20 features e.g. an internal thread, a sleeve
etc. When the car body is being assembled, the roof unit is fitted
onto the largely prefabricated basic structure 10.
[0038] FIG. 3 shows further parts that can be built onto the basic
structure 10 e.g. the ceiling 14, such as a foamed body covered
with a lining 31, ceiling frame 15 and airbag module 18 e.g. for
side wall airbags, window airbags or head/shoulder airbags. During
production of the vehicle, the ceiling 14 along with the ceiling
frame 15 is inserted through the front or rear window opening and,
in an upwards movement, the ceiling frame 15 brought up to the
points for connecting it to the longitudinal frame members 16. The
ceiling frame 15 is joined to the longitudinal frame members
16--one of various possible attachment points--via the attachment
of the roof hand-grip 17, which in turn is secured to the
connecting element 20. The lower edge region of the ceiling frame
15 is accommodated by the seal 19. Provided the fittings have not
already been mounted on the ceiling 14 or the ceiling frame 15 and
therefore already in place, further fittings in the roof region may
be mounted from above.
[0039] Shown in FIG. 4, also in cross-section, is the outer skin 13
of the roof which is mounted in a further production step onto the
longitudinal frame 16, which is part of the basic structure 10. The
outer skin 13 can be lowered from above onto the longitudinal
frame. The outer skin 13 and the cross members II and 12 shown in
FIG. 1 are permanently joined to the basic structure 10 at the seam
21 e.g. by adhesive bonding and/or welding.
[0040] FIG. 5 shows a ceiling frame 15 which may be of one or a
plurality of parts, preferably one part. The ceiling frame 15 may
e.g. be a shaped part of metal such as a pressure diecasting, or a
foamed body such as an integral foam body etc.
[0041] FIG. 6 shows a cross-section through a longitudinal frame 16
of basic structure 10; the ceiling frame 15 along with airbag
module 18 are mounted by way of the connecting element 20 to which
the hand grip 17 is attached. The lower edge of the ceiling frame
is accommodated by the profiled seal 19. The ceiling frame 15 may
be introduced into the basic structure e.g. through the front or
rear window opening and raised to the connecting points on the
longitudinal frame 16 and the cross members. The ceiling frame 15
may e.g. also be introduced by tilting and lowering into the basic
structure before being raised again to the matching connecting
points on the longitudinal frame 16 and the cross members.
[0042] FIG. 7 shows a further assembly step beyond that shown in
FIG. 6 in which a unit--comprising the outer skin 13 already
attached to the ceiling 14 is mounted on the ceiling frame 15 and
the roof frame (containing both longitudinal frame members 16, the
front cross members 11 and rear cross member 12)--joined
permanently to the roof frame at seam 21 by adhesive bonding and/or
welding.
[0043] Shown in FIG. 8 are the relevant parts of a basic structure
10 of a vehicle body including side wall columns 24, 25, 26, 27 and
the longitudinal frame 16. This differs from that shown in FIG. 1
in that the front and rear cross members 11 and 12 are missing.
[0044] FIG. 9 shows a fully installed roof unit 23 with ceiling 14,
ceiling frame 15, outer skin 13, rear cross member 12 and front
cross member 11. The roof unit 23 may also include interior
fittings not shown here such as e.g. wiring, holding grips, sun
shields, interior lighting, operating and display elements,
sliding, raising, folding and lamellar roofs, or rigid or moveable
glass roofs and their frame parts as well as driving mechanisms for
moveable roofs.
[0045] FIG. 10 shows the mounting of the roof unit 23 shown in FIG.
9 to the basic structure 10. For that purpose the roof unit 23 is
introduced e.g. from the front between the two columns 24 into the
interior of the vehicle in the direction of the arrow, then
subsequently raised up until the roof unit 23 and the basic
structure 10 touch at the matching points of joining.
[0046] FIG. 11 shows the cross-section of one of the two
longitudinal frame members 16 before fitting on the roof unit 23
shown in FIG. 10.
[0047] FIGS. 12 and 13 show in cross-section the vertical fitting
of roof unit 23 according to FIG. 10. The roof unit 23 is raised to
the roof frame of the basic structure 10 until it touches it. The
groove 29 and the corresponding bulge 28 may be provided over the
whole length of the roof unit 23 or longitudinal frame members 16
and cross members 11, 12. On raising the roof unit 23 further the
bulge 28 fits into the groove 29. This first connection may be
fixed further by connection of the hand grips 17 to the connecting
elements 20. At joints such as in the region of the bulge 28 and
groove 29 further means of joining may be employed and the
longitudinal frame members 16 for example welded, adhesively
bonded, bolted, clipped etc to the roof skin 13. The other parts
which have not been mentioned can be identified from the reference
numbers in the previous figures.
[0048] FIG. 14 shows a further possible version of a roof assembly
unit whereby this roof unit, in addition to the components in the
roof unit 23, contains both longitudinal frame members 16 which
along with the cross members 11 and 12 form a closed roof frame. In
the roof unit shown in FIG. 14 the side wall airbag module 18, the
connecting elements 20 etc., are already connected to the
longitudinal members 16. Further, the roof unit in FIG. 14 features
the connecting means 30 which permit the roof unit to be joined to
the basic structure 10 shown in the next figure viz., FIG. 15.
[0049] FIG. 15 shows the basic structure 10 relating to FIG. 14,
which contains the side columns of the car body, A column 24, B
column 25, C column 26 and D column 27. At the upper ends of the
side columns are the corresponding connecting means 30 Further
vehicle components on the basic structure in FIG. 15 were omitted
here.
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