发明名称 Verfahren zum Herstellen von Hauptfederblaettern, insbesondere fuer Kraftfahrzeug-Blattfedern
摘要 772,111. Laminated springs. DAIMLERBENZ AKT.-GES. July 1, 1955 [July 3, 1954], No. 19106/55. Class 108(3). The thickness of the material of the rolled eye 3 of the main leaf 1 of a leaf spring, is increased in relation to the thickness of the leaf proper, by a swaging operation performed after the eye has been rolled. The swaging is carried out by a swage 6 on both sides of the spring to reduce the width from 4 to 4<SP>1</SP> and to increase the thickness of the eye from 2 to 2<SP>1</SP>.
申请公布号 DE941584(C) 申请公布日期 1956.04.12
申请号 DE1954D018161D 申请日期 1954.07.04
申请人 DAIMLER-BENZ AKTIENGESELLSCHAFT 发明人 MARUHN DR.-ING. HABIL. HERBERT
分类号 B21D53/88;B21K1/76;F16F1/18 主分类号 B21D53/88
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