发明名称 Lampshade and process for the manufacture thereof
摘要 The invention relates to a lampshade which can be folded up, consisting of frame parts with coating, the individual elements of which lampshade cannot be connected together and the sheath or coating of which consists of plastic injected onto the frame. The manufacturing process consists in the elements being centrally arranged on a holding device, consisting of a spindle with hubs and spokes, in the case of large distances between the elements, these are spanned by means of filaments, binding wires, spiral springs, rubber bands or the like, the thus obtained frame then being spray-coated with liquid plastic and then the filaments, binding wires, spiral springs, rubber bands or the like being removed by pulling out. Because of the fact that no braces are provided between the elements of the frame, the shade can be folded up and as a result of the use of spray-on liquid plastic all conceivable forms of lampshades can be manufactured without the coating material warping or bagging.
申请公布号 DE3243739(A1) 申请公布日期 1983.06.30
申请号 DE19823243739 申请日期 1982.11.26
申请人 GRUENWALD,ROBERT 发明人 GRUENWALD,ROBERT
分类号 F21V1/06;(IPC1-7):F21V1/06 主分类号 F21V1/06
代理机构 代理人
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