发明名称 Tubular bar with integral rolled locking system and method of making same
摘要 The modular grill for vehicles such as trucks includes an elongated screen of generally rectangular configuration, with the longest dimension extending horizontally and with the screen having inner and outer surfaces. A plurality of vertically spaced elongated tubular bars are provided which extend horizontally across the screen in surface-to-surface contact with the outer surface of the screen. A plurality of vertically spaced straps are provided, one for each tubular bar, with the straps being in surface-to-surface contact with the inner surface of the screen. Fastening structure extend through the straps, screen and tubular bars for retaining the bars on the screen. A roll forming method is disclosed for making the tubular bar with an integral rolled locking system which extends the entire length thereof and holds the bar in tension. The bar is preferably sweep along its longitudinal axis to create a curvature consistent with modern automotive designs.
申请公布号 US6520215(B2) 申请公布日期 2003.02.18
申请号 US20010793940 申请日期 2001.02.27
申请人 HAYES-ALBION CORPORATION 发明人 GRABER DONALD G.
分类号 B21C37/10;B60R19/52;(IPC1-7):F16L9/17 主分类号 B21C37/10
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