Patent ID: 7695270

Claim:
A mould for injection moulding a part of plastic material ( 30 ) comprising at least two adjacent parts ( 15 , 16 ) comprising two compatible plastic materials assembled together by welding or adhesive bonding, of different kinds and/or colors, the mould ( 1 ) comprising: a mould cavity ( 2 ) bounded by at least a first and a second non-planar wall; and at least one retractable wall ( 5 ) configured to move between a retracted position and an extended position, the retractable wall dividing the mould cavity ( 2 ) into at least two separated compartments ( 6 , 7 ) in the extended position, each of the two compartments configured to be separately fed with plastic material, wherein, in the extended position, the retractable wall ( 5 ) has a non-linear edge ( 13 ) that is in contact with the first wall ( 4 ) of the mould cavity along an entirety of the non-linear edge ( 13 ), and wherein the retractable wall comprises a plurality of panels ( 10 , 11 , 12 ) contiguous in at least one of the extended position and the retracted position, the panels ( 10 , 11 , 12 ) configured to move in relation to each other in such a way as to alter the non-linear edge of the retractable wall to match a shape of the second wall ( 3 ) of the mould cavity ( 2 ) when in the retracted position.