| 摘要 |
A press provided with a structure comprising a table (2), an upper crossbar (4), and at least two interposed lateral spacers (3) which define, together with the table (2) and the upper crossbar (4) a passage (100) having a longitudinal axis (A); the press structure comprising a stage of predisposed the table (2) and the upper crossbar (4) at a predetermined reciprocal initial distance defined by the spacers (3) or by other suitable means, and being characterised in that it comprises further stages of: realising at least a resistance ring (30); coupling the resistance ring (30) to the press structure such that it envelops at least a portion of the table (2) and at least a portion of the upper crossbar (4); reciprocally distancing the table (2) and the upper crossbar (4) in contrast with the resistance ring (30), such that the resistance ring (30) is subjected to traction, and interposing at least a further spacer between the table (2) and the upper crossbar (4) in order to impose therebetween a reciprocal distance which is greater than the initial reciprocal distance, such as to maintain the resistance ring (30) in traction.
|
