B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/784
B29C 47/04 (2006.01) B29C 47/00 (2006.01) B29C 47/12 (2006.01) B29C 69/00 (2006.01) B60J 10/00 (2006.01) B60J 10/08 (2006.01)
Patent
CA 1304551
ABSTRACT OF THE DISCLOSURE A method for producing a weather strip of varying cross sectional shape includes the steps of simultaneously extruding two rubber members from two outlet ports formed in an extrusion head of an extruder so as to be close to and parallel with each other, each of the two rubber members having a uniform cross sectional shape in their longitudinal direction, corresponding to each of two pieces obtained by cutting the weather strip in its longitudinal direction, overlapping opposed side portions of the two extruded rubber members, joining the overlapped portions to obtain a joined weather strip of which the cross sectional shape continuously changes in its longitudinal direction, and feeding the joined weather strip into a vulcanizing bath to be vulcanized. The overlapping step and the joining step are performed by feeding the two extruded rubber members between a receiving roller disposed in front of the extruding outlets, and a pressing roller disposed directly above the receiving roller. The receiving roller has a guide groove in its outer periphery, the width of which changes in the peripheral direction of the roller, and the pressing roller presses the overlapped portion of the two extruded rubber members within the guide groove of the receiving roller. PAT 11749-1
555768
Kamiya Tomoyuki
Ogawa Kazuo
Oohashi Masaki
Borden Ladner Gervais Llp
Toyoda Gosei Co. Ltd.
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