Axle support for a vehicle, in particular for a motor vehicle, and method for the production of such an axle support
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62D-021/11
B62D-029/00
B62D-065/00
출원번호
US-0386647
(2013-03-04)
등록번호
US-9139227
(2015-09-22)
우선권정보
DE-10 2012 005 857 (2012-03-22)
국제출원번호
PCT/EP2013/000613
(2013-03-04)
국제공개번호
WO2013/139432
(2013-09-26)
발명자
/ 주소
Leibl, Peter
출원인 / 주소
AUDI AG
대리인 / 주소
Henry M. Feiereisen LLC
인용정보
피인용 횟수 :
1인용 특허 :
4
초록▼
An axle support for a vehicle includes two longitudinal members and at least one cross member interconnecting the two longitudinal members. The at least one cross member is formed as a multi-part tailored blank component and is fixedly welded via its lateral cross member attachment zones arranged op
An axle support for a vehicle includes two longitudinal members and at least one cross member interconnecting the two longitudinal members. The at least one cross member is formed as a multi-part tailored blank component and is fixedly welded via its lateral cross member attachment zones arranged opposite in the longitudinal direction of the cross member to the respectively associated longitudinal member. The cross member is coated with a surface coating as a protective layer, in particular with a zinc layer. The lateral cross member attachment zones are each formed by an uncoated, in particular ungalvanized, single-part or multi-part sheet metal component, wherein the cross member midsection adjoining the two lateral cross member attachment zones is formed by a one-part or multi-part sheet metal component, which, when the axle support is installed, has at least one roadway-facing underside that is provided at least in some areas with the surface coating.
대표청구항▼
1. An axle support for a vehicle, comprising: two longitudinal members;at least one cross member connecting the two longitudinal members to one another, said at least one cross member or at least one of a plurality of cross members being configured as multi-part tailored blank component having later
1. An axle support for a vehicle, comprising: two longitudinal members;at least one cross member connecting the two longitudinal members to one another, said at least one cross member or at least one of a plurality of cross members being configured as multi-part tailored blank component having lateral cross member attachment zones, which oppose one another in a cross member length direction for firm securement to the longitudinal members by a weld joint and are each formed by an uncoated single part or multi-part sheet metal component, and a cross member midsection, which adjoins the lateral cross member attachment zones and is formed by a single part or multi-part sheet metal component; anda surface coating applied on at least one area of at least one roadway-facing underside of the cross member midsection to provide a protective layer. 2. The axle support of claim 1, wherein the surface coating is a zinc layer. 3. The axle support of claim 1, wherein the sheet metal component of each of the lateral cross member attachment zones is ungalvanized. 4. The axle support of claim 1, wherein the two lateral cross member attachment zones are each part of an uncoated sheet metal component and are each firmly connected with the cross member midsection. 5. The axle support of claim 1, wherein the sheet metal component for the cross member midsection is galvanized. 6. The axle support of claim 1, wherein the two lateral cross member attachment zones are welded to the cross member midsection. 7. The axle support of claim 1, wherein the sheet metal components for the lateral cross member attachment zones and the sheet metal component for the cross member midsection are formed by sheet metal plates which together as component composite are formed into a final cross member geometry. 8. The axle support of claim 7, wherein the sheet metal plates for the lateral cross member attachment zones and the cross member midsection are formed into the final cross member geometry by deep drawing and/or pressing. 9. The axle support of claim 7, wherein the sheet metal plates for the lateral cross member attachment zones and the sheet metal component for the cross member midsection have at least in part a different material thickness and/or different material strength. 10. The axle support of claim 1, wherein the surface coating is applied across an entire surface area of the sheet metal component for the cross member midsection. 11. The axle support of claim 1, further comprising a plurality of said cross member configured to interconnect the two longitudinal members which are oriented in a vehicle longitudinal direction when the axle support is installed, with the surface coating being applied only upon a leading one of the cross members, as viewed in a travel direction. 12. The axle support of claim 1, wherein the longitudinal members have each a longitudinal member, respectively associated to the two lateral cross member attachment zones and made of an uncoated, weldable material. 13. The axle support of claim 12, wherein the longitudinal member region is ungalvanized. 14. The axle support of claim 1, wherein at least one of the longitudinal members is made in one or multiple parts and/or made of a sheet metal material. 15. The axle support of claim 1, wherein at least one of the longitudinal members is made as a tailored blank component which is formed of several shaped and interconnected sheet metal components which have at least in part a different material thickness and/or material strength. 16. The axle support of claim 1, wherein the surface coating is a coating selected from the group consisting of metallic surface coating and a surface coating which is applied chemically and/or galvanically. 17. The axle support of claim 1, wherein the surface coating is a pure zinc layer or a zinc alloy layer or a light metal alloy layer. 18. The axle support of claim 17, wherein the light metal alloy layer is an aluminum alloy layer. 19. The axle support of claim 1, wherein at least one of the lateral cross member attachment zones has a shape which deviates from a planar geometry. 20. The axle support of claim 19, wherein the at least one of the lateral cross member attachment zones is formed from a malleable portion which in relation to a cross member plane or a sheet metal component plane has been bent and/or angled and/or collared and/or is formed by a hollow profile and/or formed by an undercut geometry. 21. A method for the production of an axle support for a vehicle, comprising: forming a lateral cross member attachment zone of a cross member or of at least one of a plurality of cross members from a first uncoated planar sheet metal plate;applying a surface coating on at least one area of a second planar sheet metal plate;connecting the lateral cross member attachment zone with the second sheet metal plate to form a planar malleable sheet metal blank having an uncoated side region formed by the first uncoated planar sheet metal plate and a midsection formed by the second planar sheet metal plate;transferring the planar malleable sheet metal blank as pre-material and as component composite of several planar sheet metal plates to a forming device;forming the planar malleable sheet metal blank into the final shape in the forming device in one or multiple steps to produce a cross member; andwelding the cross member via the cross member attachment zone to a longitudinal member. 22. The method of claim 21, wherein the first sheet metal plate is ungalvanized. 23. The method of claim 21, wherein the cross member is formed into a final shape by a deep drawing and/or pressing process. 24. The method of claim 21, wherein the lateral cross member attachment zone is welded to the second sheet metal plate.
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