发明名称 Cycling helmet made of plastic, and method of manufacture thereof
摘要 The invention relates to a cycling helmet made of plastic. In order to reduce its manufacturing costs without this impairing the resistance to loading in the case of a crash, provision is made for the cycling helmet (1) to be of dual-wall design (2, 3) and to consist of a blow-moulded plastic. Furthermore, the invention relates to a method for the manufacture of such a cycling helmet in such a way that the helmet is blow-moulded from a plastic tube inside a mould in such a way that a tube develops inside a hollow space of the mould to form a dual wall forming the helmet. <IMAGE>
申请公布号 DE4305745(A1) 申请公布日期 1994.09.08
申请号 DE19934305745 申请日期 1993.02.25
申请人 SPERBER, GERHARD, 91217 HERSBRUCK, DE 发明人 SPERBER, GERHARD, 91217 HERSBRUCK, DE
分类号 A42B3/04;A42B3/06;A42B3/12;A42B3/28;A42C2/00;(IPC1-7):A42B3/06 主分类号 A42B3/04
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