发明名称 Forming appts. for bicycle wheel rims - uses strip material of steel or aluminium in three point bending roll equipment
摘要 <p>The bending apparatus is designed to produce circular arc structures, especially bicycle wheels. It completes a work-bench (12) with a horizontal surface to feed the ship (1) to a vertical axle driven member (14, 15) which presses on the strip to form the U-channel shaped cross section. After section forming the strip passes to a segment former (17) having a circular arc edge profile (18). The strip is made to fit the shape by upwards movement of a roller (23) mounted on a rod in the vertical plane. The equipment also includes clamps to hold the workpiece during the forming operations, which are automatically controlled.</p>
申请公布号 NL7513654(A) 申请公布日期 1977.05.24
申请号 NL19750013654 申请日期 1975.11.21
申请人 HOLLAND MECHANICS B.V. TE DIEMEN. 发明人
分类号 B21D7/08;B21D53/30;(IPC1-7):21D53/30;21D5/08 主分类号 B21D7/08
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