| 摘要 |
A platen ( 50 ) for a molding machine includes an intermediate support structure ( 20 ) between two planar walls ( 16, 18 ) having ribs ( 40 ) arranged at a non-normal angle beta to a first wall ( 18 ). The ribs ( 40 ) couple forces from the first wall ( 18 ) to the second wall ( 16 ) in such a way that bending of the second wall ( 16 ) is resisted. This adds to the rigidity of the second wall ( 16 ) and hence the platen ( 50 ), adding to flatness of the arrangement. Gussets ( 42 ) may be provided extending between the ribs ( 40 ) and the intermediate support structure ( 20 ). This has the effect of surrounding and supporting an injection bore ( 14 ) and further adding to the coupling of forces to the edge portions of the second wall ( 16 ) to resist forces acting to bend the wall.
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