Sealing strips and methods of making them

专利名称：Sealing strips and methods of making them发明人：Kühnen, Dieter申请号：EP90309789.7申请日：19900906公开号：EP0427383A3公开日：19911204

专利附图：

摘要：For producing a bend or corner in a sealing strip 16, to match the shape of abend or corner in its mounting flange, a portion of the sealing part 26 is removedbetween parts 26A and 26B, so as to produce a correspondingly shaped cut-out. Thesealing strip is then placed within a mould cavity 54 which is curved to match the required

configuration for the bend or corner and has an internal surface matching the externalsurface of the sealing part 26. A metal core 60, having a cross-sectional size matching thatof the hollow interior of the sealing part 26, is placed in position within the cut-out by aswinging arm 58. Moulding then takes place whereafter arm 58 is swung outwards so asto withdraw core 60 (portion 26B has to be partially flattened to facilitate this). A smallpart D of the cut-out, which is blocked by, arm 58 during the moulding process, is leftopen. This is then closed off by a further injection moulding operation using a short corematching the cross-sectional shape of the core 60. This short core has a narrowed neckby means of which it can be pulled out of the sealing part 26B through a small hole in thesealing part which is thereafter closed by a grommet.

申请人：DRAFTEX INDUSTRIES LIMITED

地址：3 Glenfinlas Street Edinburgh, EH3 6YY, Scotland GB

国籍：GB

代理机构：Foster, David Martyn

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