The invention provides an automotive rear bridge. The automotive rear bridge comprises an upper sheet and a lower sheet. The upper sheet and the lower sheet are welded with each other integrally. The welding positions on the front and rear sides of the upper sheet and the lower sheet are respectively provided with a plurality of waist holes. The waist holes on the front side welding positions of the upper sheet and the lower sheet are staggered with the waist holes on the rear side welding positions. The waist holes are designed on the matching positions of the upper sheet and the lower sheet, a region of stress concentration is avoided, and the waist holes are arranged on the positions where stress is relatively low, thereby reducing influence on rigidity and intensity of a rear bridge. In addition, considering from a front direction and a rear direction, the waist holes are designed in an asymmetric manner. In a front welded joint and a rear welded joint, arrangement of the waist holes on different positions, so that the whole rear bridge has the welded joint on a same cross section position, and original intensity and rigidity of the rear bridge are maintained.
Automotive rear bridge
2016-01-13
Patent
Electronic Resource
English
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |
SAE Technical Papers | 1970
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