专利名称：Expansible dowel made of plastic 发明人：FISCHER, ARTUR, PROF. DR. H. C.申请号：EP92105258.5
申请日：19920327
公开号：EP0515794B1
公开日：
19940706
专利内容由知识产权出版社提供
摘要：2.1 Normally, plastic expanding dowels have a longitudinal slot which originates from the front end, and a longitudinal hole for the inrtion of an attachment screw, which longitudinal hole, after a cylindrical ction corresponding approximately to the external diameter of the screw, merges into a conical tapered ction. …2.2 In order to reduce the screwing-in resistance, it is propod that the cylindrical ction (3a) of the longitudinal hole (3) taper at right angles to the plane of the slot down to the slot width, and that, in the plane of the slot, the diameter of the cylindrical ction (3a) be approximately maintained in the region of the tapered ction (3b). ……
申请人：FISCHERWERKE ARTUR FISCHER GMBH & CO. KG,FISCHER ARTUR WERKE GMBH,FISCHERWERKE ARTUR FISCHER GMBH & CO. KG
地址：DE
国籍：DE
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