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US 12,258,071 B2Granted
Method for manufacturing lightweight cowl crossbar
AssigneesHyundai Motor Company, Kia Motors Corporation, LG Hausys, Ltd., Hyundai Mobis Co., Ltd.
InventorsJae Hyun An, In Soo Han, Hee Seok Kim, Il Sang Kim, Ik Jin Jung, Kyeong Hoon Jang, Young Jin You, Sang Hyeon Park, Wook Hee Lee, Yong Woo Jung, Ik Keun Choi, Young Chan Cho
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Abstract
A method for manufacturing a lightweight cowl crossbar includes: producing an inner pipe, laminating a plurality of composite material layers wound around the inner pipe, and extruding an outer pipe on the winding layer, in which the plurality of composite material layers adjacent to each other are wound in different directions.
Claims5
A lightweight cowl crossbar comprising:
- an inner pipe located inside a cowl crossbeam;
- a winding layer formed along an outer surface of the inner pipe, wherein an uneven section of the winding layer is planarized using a drawing machine;
- and
- an outer pipe located on an upper surface of the winding layer,
- wherein the cowl crossbeam includes;
- a first cowl crossbeam and a second cowl crossbeam,
- a support leg located on the second cowl crossbeam, and
- a drawing block part including an absorption member and configured to surround the outer pipe of the first cowl crossbeam in a region where the first cowl crossbeam and the second cowl crossbeam overlap each other,
- wherein the support leg is configured to be fastened to the first cowl crossbeam integrally with the second cowl crossbeam, and one surface of the support leg includes a hollow part, and
- wherein the absorption member has a hollow shape corresponding to the hollow part.
7 more elements
Dependencies are inferred from the claim text.