GB2478649A - Body shell for a motor vehicle front-section, and method for manufacturing the same - Google Patents

Body shell for a motor vehicle front-section, and method for manufacturing the same Download PDF

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Publication number
GB2478649A
GB2478649A GB1104037A GB201104037A GB2478649A GB 2478649 A GB2478649 A GB 2478649A GB 1104037 A GB1104037 A GB 1104037A GB 201104037 A GB201104037 A GB 201104037A GB 2478649 A GB2478649 A GB 2478649A
Authority
GB
United Kingdom
Prior art keywords
structural member
body shell
section structural
installation part
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB1104037A
Other versions
GB201104037D0 (en
GB2478649B (en
Inventor
Klaus Labbe
Jurgen Karlheinz Hulbert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Publication of GB201104037D0 publication Critical patent/GB201104037D0/en
Publication of GB2478649A publication Critical patent/GB2478649A/en
Application granted granted Critical
Publication of GB2478649B publication Critical patent/GB2478649B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • B62D21/03—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members transverse members providing body support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B62D25/085—Front-end modules

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The application relates to a body shell 1 for a motor-vehicle front section and a method for manufacturing the same. The body shell 1 comprises in the region of the motor-vehicle front section a freely accessible engine bay 2 between front regions 3, 4 of two longitudinal members 9, 10. Vertical supporting members 5, 6 are supported on front ends 7, 8 of each longitudinal member 9, 10. In this case, upper ends 11, 12 of the supporting members 5, 6 comprise installation parts 13, 14 on which an upper front front-section structural member 15 can be fixed between the supporting members 5, 6 in a final assembly. The installation parts 13, 14 may comprise fixing means and the upper front front-section structural member 15 may be fixed to the installation parts 13, 14 via screws, rivets or dowel pins. The shell 1 may be manufactured by mounting components on the engine bay bulkhead 18 before attaching installation parts 13, 14 and upper front front-section structural member 15.

Description

DESCRIPTION
BODY SHELL FOR A MOTOR-VEHICLE FRONT SECTION AND METHOD FOR
MANUFACTURING THE SAME
The application relates to a body shell for a motor vehicle front section and a method for manufacturing the same. The body shell has a freely accessible engine bay between front regions of two longitudinal members in the region of the motor-vehicle front section. Supported on front ends of each longitudinal member are vertical supporting members which are provided for an upper front front-section structural member.
Known from the document DE 10 2004 011 423 Al is a body shell for a motor-vehicle front section comprising an installation unit for installation in the body shell. In this case, the installation unit in the front section is * used to house built-in fittings, whereby the assembly and S... *.
* maintenance expenditure can be reduced with the aid of the * 1 installation unit. To this end, the installation unit is disposed in front of a bulkhead separating an engine bay and a passenger compartment or engine bay bulkhead in the engine bay. *... * S S...
:. A disadvantage of such installation units is that the engine bay is not freely accessible during assembly in the body shell but on the contrary, access is blocked by an upper front-section structural member so that assembly is ergonomically unfavourably arranged for the assembly staff, especially as this front-section structural member is disposed ergonomically unfavourably transversely between the front regions of the longitudinal members in the knee area or above the knee area of the assembly staff in the body shell.
It is the object of the application to provide a body shell for a motor-vehicle front section which facilitates the assemblability of such installation units and components in the area of the engine bay bulkhead and which is ergonomically adapted to the circumstances and conditions of the assembly staff.
This object is achieved with the subject matter of the independent claim 1. Advantageous further developments of the solution are obtained from the dependent claims.
In one embodiment of the application, a body shell for a motor-vehicle front section and a method for manufacturing the same are provided. The body shell comprises in the region of the motor-vehicle front section a freely accessible engine bay between front regions of two longitudinal members. Vertical supporting members are supported on front ends of each longitudinal member. At the same time, upper ends of the supporting members comprise installation parts on which an upper front front-section :::: structural member can be fixed between the supporting : * * members in a final assembly.
This body shell has the advantage that assembly staff can enter the engine bay unhindered and can install built-in fittings on the engine bay bulkhead which separates the engine bay from the vehicle interior. Ergonomically unfavourable activities such as, for example, installation of the cable harness set in the region of the engine bay and other components can therefore be avoided although the engine bay per se is a closed body structure. At the same time an open front-section structure of a body is thus available, which can be manufactured inexpensively and substantially facilitates the final assembly of the front section.
At the same time, by attaching vertical supporting members to front ends of the longitudinal members with the installation parts disposed at free ends of the supporting members, a one-dimensional, stable and reproducible base is created which allows a stress-free screwing, riveting or welding of the front-section structural member in the final assembly. In addition, further attachment parts such as bonnet lock and/or front trim support as well as other mounting parts can be built onto this structural part either successively in the production line or as a complete * module in the final assembly.
0**S** * * Each installation part for the front-section structural member can be connected to the upper end of the corresponding supporting member in a firmly bonded manner by welding or brazing. Each installation part can have mounting means for a final assembly for the fixing of ends of the front-section structural member. Thus, threaded holes can be provided in the installation part as mounting means which are provided for fixing screws for the final assembly of the front-section structural member. It is also possible that the installation parts have rivet holes which are provided for compression rivets for the non-detachable final assembly of the front-section structural member.
In a further embodiment of the subject matter of the application, the installation part can have fitting holes as mounting means which correspond with dowel pins on the front-section structural member, wherein the dowel pins enable a precisely fitting fit of the front-section structural member in the final assembly and ensure a non-detachable firmly bonded fixing of the front-section structural member on the installation parts.
Furthermore, the front section in the body shell can have a lower crossbar structure mounted in front of the longitudinal members via crashboxes, which structure does not, however, ergonomically impede free access to the engine bay since such structures with crashboxes and crossbar structures are disposed far below the knee height of the assembly staff. * *
A method for manufacturing a body shell for a motor-vehicle front section comprises the following process steps.
Initially a freely accessible engine bay is provided in the front region of the body shell. Vertical supporting members are fixed on front ends of longitudinal members in *.*S * * preparation for a connection of the front ends of the : * * longitudinal members of the body shell to an upper front-section structural member which terminates the engine bay in the front regions of the longitudinal members.
In the thus freely accessible engine bay without front-section structural member, vehicle components are mounted on an engine bay bulkhead between engine bay and vehicle interior. Installation parts are fixed on the upper ends of the vertical supporting members for attachment of a front-section structural member which terminates the engine bay in the front region. This method has the advantage that for the preparatory work in the engine bay, on the engine bay bulkhead and on the side parts of the engine bay such as, for example, the attachment of a cable harness, this is now no longer impeded by an upper, front-section structural member which terminates the engine bay.
To this end, the installation parts can be connected to the upper end of the corresponding supporting member in a firmly bonded manner. In addition, mounting means for the final assembly for the fixing of ends of the front-section structural member can be attached on each installation part. Such mounting means can be rivet holes which are provided for the non-detachable final assembly of the front-section structural member. These mounting means can * also comprise threaded holes in the installation parts * which are provided for precise-fitting screwing of the front-section structural member into the installation parts. In addition, the installation parts can have fitting holes which correspond with dowel pins on the front-section ** structural member in order to ensure a precisely fitting final assembly of the front-section structural member. The body shell can also have a lower crossbar structure mounted in front of the front ends of the longitudinal members which as a result of the low height do not impede access to the engine bay in the body shell so that crashboxes forming a horizontal extension of the longitudinal members at the front ends of the longitudinal members can already be provided in the body shell.
The subject matter of the application is now explained in detail with reference to the appended figures.
Figure 1 shows a schematic plan view of a body shell in the front region of a motor vehicle according to one embodiment of the application; Figure 2 shows a schematic perspective view of an installation part for a front-section structural member; Figure 3 shows a schematic perspective view of a body shell in the front region of a motor vehicle according to one embodiment of the application.
Figure 1 shows a schematic plan view of a body shell 1 in * the front region of the motor vehicle according to one ****** * embodiment of the application. This body shell 1 allows free access to a freely accessible engine bay 2 in the front region since an upper front-section structural member located transversely above the engine bay 2, indicated by the dashed lines here, is not mounted in this body shell *S..
concept but is only mounted in a final assembly in the upper and front region of the engine bay 2.
Merely installation parts 11 and 12 are provided at suitable height for the ends 16 and 17 of this front-section structural member in order to precisely fix the front-section structural member during the final assembly.
To this end, the body shell 1 has installation parts 11 and 12 with corresponding mounting means in the form, for example, of threaded holes 23, 24, 25 and 26 so that in the final assembly the front-section structural member 15 can be screwed onto the installation parts 11 and 12 with its ends 16 and 17. Since the front-section structural member is not mounted in the body shell 1, an open engine space 2 which is freely accessible for the assembly staff is obtained.
Nevertheless, crashboxes 19 and 20 can be mounted at the front ends 7 and B of the longitudinal members 9 and 10, which are interconnected via a lower crossbar structure 21.
This lower crossbar structure 21 lies below the knee region of the assembly staff and therefore does not interfere with the free access to the engine bay 2. Consequently, in an ergonomically advantageous manner, the assembly staff can preparatorily mount components on the engine bay bulkhead 18 separating the engine bay 2 from the vehicle interior 22 * * and also components such as, for example, a cable harness in the engine bay 2 without the front-section structural member 15 which constricts the engine bay 2 and terminates * it at the top and front, being mounted. ****
Figure 2 shows a schematic perspective view of an installation part 13 for a front-section structural member which is to be mounted with one of its ends on the installation part 13 in a final assembly. The installation part 13 is disposed on an upper end of a vertical supporting member 5, the upper end 11 being connected in a firmly bonded manner to the installation part 13.
The installation part 13 is configured as a shoe on which one end of the front-section structural member can be mounted positively. To this end, corresponding fitting holes, threaded holes and/or rivet holes are provided in the installation part 13, which correspond with corresponding fixing means for the front-section structural member.
Figure 3 shows a schematic perspective view of a body shell 1 in the front region of a motor vehicle according to one embodiment of the application. This perspective view shows that omitting the front-section structural member in the body shell 1 of a motor vehicle front section makes the engine bay 2 freely accessible and enables the assembly staff to mount appropriate fittings on the engine bay bulkhead 18 and on the front regions 3 and 4 of the longitudinal members 9 and 10. Merely installation parts 12 project on supporting members 6 into the engine bay 2 but do not impede assembly work. A lower crossbar structure 21 with crashboxes 19 and 20 fixed at front ends 7 and 8 of S.....
* S the longitudinal members 9 and 10 does not impede such assembly work on the body shell 1 in the front region of the motor vehicle, especially as this crossbar structure 21 with the crashboxes 19 and 20 are disposed below knee S...
regions of the assembly staff. *. * * S *
REFERENCE LIST
1 Body shell for a motor-vehicle front section 2 Freely accessible engine bay 3 Front region of a longitudinal member 4 Front region of a longitudinal member Vertical supporting member 6 Vertical supporting member 7 Front end of a longitudinal member 8 Front end of a longitudinal member 9 Longitudinal member Longitudinal member 11 Upper end of a supporting member 12 Upper end of a supporting member 13 Installation part 14 Installation part Front-section structural member 16 End of front-section structural member 17 End of front-section structural member 18 Engine bay bulkhead 19 Crashbox Crashbox 21 Crossbar structure 22 Vehicle interior **..
23 Threaded hole S. : * * 24 Threaded hole Threaded hole 26 Threaded hole

Claims (8)

  1. PATENT CLAIMS1. A body shell for a motor-vehicle front section comprising: -a freely accessible engine bay (2) between front regions (3, 4) of two longitudinal members (9, 10), -vertical supporting members (5, 6) on front ends (7, 8) of each longitudinal member (9, 10) which are supported on the front ends (7, 8), wherein the upper ends (11, 12) of the supporting members (5, 6) comprise installation parts (13, 14) on which an upper front front-section structural member (15) can be fixed between the supporting members (5, 6) in a final assembly.
  2. 2. The body shell according to claim 1, wherein each installation part (13, 14) is connected in a firmly bonded manner to the upper end (11, 12) of the corresponding supporting member (5, 6)SI.....* *
  3. 3. The body shell according to claim 1 or claim 2, * S....* S wherein each installation part (13, 14) comprises mounting means for a final assembly for the fixing of ends (16, 17) of the front-section structural member (15)
    S S...
  4. 4. The body shell according to claim 3, wherein as mounting means the installation part (13, 14) has threaded holes in the installation part (13, 14) which are provided for fixing screws for the final assembly of the front-section structural member (15)
  5. 5. The body shell according to claim 3, wherein as mounting means the installation part (13, 14) has rivet holes in the installation part (13, 14) which are provided for compression rivets for the non-detachable final assembly of the front-section structural member (15)
  6. 6. The body shell according to any one of claims 3 to 5, wherein as mounting means the installation part (13, 14) has fitting holes in the installation part (13, 14) which correspond with dowel pins on the front-section structural member (15) and wherein the dowel pins form a precisely fitting fit of the front-section structural member (15) in the final assembly and ensure a non-detachable firmly bonded fixing of the front-section structural member (15) on the installation parts (13, 14)
  7. 7. The body shell according to any one of the preceding claims, wherein the front section in the body shell (1) comprises a lower crossbar structure (21) mounted in front of the longitudinal members (9, 10) via crashboxes (19, 20), which structure does not impede free access to the engine bay (2) *S.. * * ****8. A method for manufacturing a body shell (1) for a : * motor-vehicle front section, wherein -initially a freely accessible engine bay (2) is provided in the front region of the body shell (1), -vertical supporting members (5, 6) are fixed on front ends (7, 8) of longitudinal members (8, 9) in preparation for a connection of the front ends (7, 8) of the longitudinal members (8, 9) of the body shell (1) to a front-section structural member (15) which terminates the engine bay (2) in the front regions (3, 4) of the longitudinal members (8, 9), -in the freely accessible engine bay (2), vehicle components are mounted on an engine bay bulkhead (18) between engine bay (2) and vehicle interior (22), -installation parts (13, 14) are fixed on the upper ends (11, 12) of the vertical supporting members (5, 6) for attachment of a front-section structural member (15) which terminates the engine bay (2) in the front region.9. The method according to claim 8, wherein each installation part (13, 14) is connected to the upper end (11, 12) of the corresponding supporting member (5, 6) in a firmly bonded manner by welding or brazing. * *10. The method according to claim 8 or claim 9, wherein mounting means for a final assembly for the fixing of ends (16, 17) of the front-section structural member (15) are attached on each installation part (13, 14)
  8. S... *5 ** * S* 11. The method according to any one of claims 8 to 10, wherein in each installation part (13, 14) threaded holes are provided as mounting means for fixing screws for the final assembly of the front-section structural member (15) 12. The method according to any one of claims 8 to 10, wherein rivet holes are incorporated in the installation part (13, 14) as mounting means which are provided for the non-detachable final assembly of the front-section structural member (15) 13. The method according to any one of claims 8 to 10, wherein fitting holes are incorporated in the installation part (13, 14) which correspond with dowel pins for the front-section structural member (15) and wherein in the final assembly the front-section structural member (15) is fitted precisely between the front ends (7, 8) of the longitudinal members (9, 10) with the aid of dowel pins and is fixed on the installation parts (13, 14) 14. The method according to any one of claims 8 to 13, wherein a lower crossbar structure (21) mounted in front of the longitudinal members (9, 10) via crashboxes (19, 20) is attached for the front section in the body shell (1), whereby free access to the S. * engine bay (3) in the body shell (1) is not impeded. S... * . . * I** . .b S *
GB1104037.5A 2010-03-12 2011-03-09 Body shell for a motor-vehicle front section and method for manufacturing the same Expired - Fee Related GB2478649B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010011237 DE102010011237A1 (en) 2010-03-12 2010-03-12 Body shell for a motor vehicle front end and method for producing the same

Publications (3)

Publication Number Publication Date
GB201104037D0 GB201104037D0 (en) 2011-04-20
GB2478649A true GB2478649A (en) 2011-09-14
GB2478649B GB2478649B (en) 2017-03-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1104037.5A Expired - Fee Related GB2478649B (en) 2010-03-12 2011-03-09 Body shell for a motor-vehicle front section and method for manufacturing the same

Country Status (2)

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DE (1) DE102010011237A1 (en)
GB (1) GB2478649B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1149032A (en) * 1997-08-08 1999-02-23 Honda Motor Co Ltd Body structure of automobile
WO2009071244A1 (en) * 2007-12-06 2009-06-11 Bayerische Motoren Werke Aktiengesellschaft Vehicle body having body element

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625724A1 (en) * 1976-06-09 1977-12-22 Audi Nsu Auto Union Ag Vehicle passenger compartment strengthened chassis - has bumper bolted across longitudinals and cross piece bolted across upper side portions
FR2801031B1 (en) * 1999-11-15 2002-02-15 Plastic Omnium Cie MOTOR VEHICLE TECHNICAL FRONT PANEL WITH REFERENCE TO VEHICLE WING
US8220576B2 (en) * 2007-10-01 2012-07-17 Mazda Motor Corporation Front end structure for automobile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1149032A (en) * 1997-08-08 1999-02-23 Honda Motor Co Ltd Body structure of automobile
WO2009071244A1 (en) * 2007-12-06 2009-06-11 Bayerische Motoren Werke Aktiengesellschaft Vehicle body having body element

Also Published As

Publication number Publication date
GB201104037D0 (en) 2011-04-20
GB2478649B (en) 2017-03-01
DE102010011237A1 (en) 2011-09-15

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Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180309