Patent ID: 7117711
Filing Date: 2006-10-10
Classification: B21D

Abstract:
1. A mould ( 42 ) for bending material parts, the mould ( 42 ) comprising opposite first and second longitudinally extending mould halves ( 1 , 21 ) enclosing a longitudinal mould cavity ( 59 ), the first mould halve ( 1 ) comprising a plurality of parallel first plates ( 2 ), the second mould halve ( 21 ) comprising a plurality of parallel second plates ( 22 ), the first and second plates ( 2 , 22 ) extending in width direction of the mould ( 42 ), alternating in longitudinal direction of the mould ( 42 ) and comprising respectively a first and second end wall ( 5 , 25 ), consecutive first and second end walls ( 5 , 25 ) forming respectively first and second side walls ( 3 , 23 ) on opposite sides of the mould cavity ( 59 ), consecutive first plates ( 2 ) being positioned at a distance from each other such as to receive in a first space ( 20 ) between adjacent first plates ( 2 ) at least part of a second plate ( 22 ), consecutive second plates ( 22 ) being positioned at a distance from each other such as to receive in a second space ( 40 ) between adjacent second plates ( 22 ) at least part of a first plate ( 2 ), characterized in that each first plate ( 2 ) comprises a first bottom part ( 8 ) and each second plate ( 22 ) comprises a second bottom part ( 28 ), the first and second bottom parts ( 8 , 28 ) protruding from the first and second end wall ( 5 , 25 ) towards the mould cavity ( 59 ) and comprising respectively a first and second end part ( 10 , 30 ), in that each first plate ( 2 ) comprises means ( 11 ) which co-operate with the bottom part ( 28 ) of an adjacent second plate ( 22 ) for restricting the canting of an adjacent second plate ( 22 ) in such a way that the second end part ( 30 ) would be moved in height direction of the mould ( 42 ), in that each second plate ( 22 ) comprises means ( 31 ) which co-operate with the bottom part ( 8 ) of an adjacent first plate ( 2 ) for restricting the canting of an adjacent first plate ( 2 ) in such a way that the first end part ( 10 ) would be moved in height direction of the mould ( 42 ), when pressing a material part in the mould cavity ( 59 ) for the purpose of bending the material part.