发明名称 Herstellung einer Lenkradummantelung
摘要 The invention relates to a method for producing a steering-wheel with a seamless cover encompassing the steering-wheel rim, steering-wheel spokes and the central area with tear lines for an airbag-covering. Said cover comprises a plastic shaped part produced as a single piece by a casting or injection process, with a closed surface and optionally a foamed base element. The inventive method is characterised in that a core consisting of a material with a low melting point is attached to the central base part of the steering-wheel skeleton. The steering-wheel skeleton and the core are then placed in a mould to produce the plastic shaped part. The plastic shaped part is formed. After said plastic shaped part has hardened, the core is melted by increasing the temperature and the material is removed from the plastic shaped part in liquid form.
申请公布号 DE19721789(A1) 申请公布日期 1998.11.26
申请号 DE1997121789 申请日期 1997.05.24
申请人 MST AUTOMOTIVE GMBH AUTOMOBIL-SICHERHEITSTECHNIK, 63743 ASCHAFFENBURG, DE 发明人 KREUZER, MARTIN, 63839 KLEINWALLSTADT, DE
分类号 B60R21/00;B29C33/52;B29C39/10;B29C44/58;B29C45/14;B29C45/44;B60R21/20;B60R21/203;B62D1/04;(IPC1-7):B29C39/10;B29C45/00 主分类号 B60R21/00
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