초록 ▼

A novel steel rule die system is provided herein. Such system includes an upper, dimensionally-stable plate (e.g., of steel) which has been laser cut in a series of primary main kerfs. It also includes an intermediate plate of a synthetic plastic material having the property of elastic deformability

A novel steel rule die system is provided herein. Such system includes an upper, dimensionally-stable plate (e.g., of steel) which has been laser cut in a series of primary main kerfs. It also includes an intermediate plate of a synthetic plastic material having the property of elastic deformability, e.g., LEXAN.TM., or LUCITE.TM.. The intermediate plate has been laser cut in a series of secondary main kerfs, those secondary main kerfs being originally identical to the series of primary main kerfs, but, in addition, including, in at least one, and preferably in each, of the secondary main kerfs, at least one region which includes an interference kerf. The interference kerf is laterally-offset from a longitudinally-extending axis of the secondary main kerf, and is of substantially the same width as the secondary main kerf and is in direct communication with the secondary main kerf. The intermediate plate also includes a relief kerf, the relief kerf being disposed alongside the interference kerf, and being spaced a predetermined distance from the closer outer edge of the secondary main kerf. A particularly specified structural relationship exists between the relief kerf, the secondary main kerf and the interference kerf, namely the offset-distance between the interference kerf and the secondary main kerf has been specified. It finally includes a lower, dimensionally-stable plate (e.g., of steel) which has been laser cut in a series of tertiary main kerfs which is identical to the series of primary main kerfs. A plurality of steel rules is disposed within the series of primary main kerfs and within the series of tertiary main kerfs and is selectively-releasably-secured within the series of secondary main kerfs. Finally, means are provided which rigidly secure the upper, dimensionally-stable plate, the intermediate synthetic plastic plate and the lower dimensionally-stable plate together in a dimensionally-stable manner, thereby to provide a monolithic steel rule die system unit.

대표청구항 ▼

[ I claim:] [1.] A steel rule die comprising:(a) an upper, dimensionally-stable plate which has been laser cut in a series of primary main kerfs;(b) an intermediate plate of a synthetic plastic material having the property of elastic deformability, said intermediate plate having been laser cut in a

[ I claim:] [1.] A steel rule die comprising:(a) an upper, dimensionally-stable plate which has been laser cut in a series of primary main kerfs;(b) an intermediate plate of a synthetic plastic material having the property of elastic deformability, said intermediate plate having been laser cut in a series of secondary main kerfs, said series of secondary main kerfs being originally identical to said series of primary main kerfs, but, in addition, including, in at least one of said secondary main kerfs, at least one region which includes an interference kerf, said interference kerf being of substantially the same width as said secondary main kerf but being laterally-offset from a longitudinally-extending axis of said secondary main kerf, and being in direct communication with said secondary main kerf, said intermediate plate also including a relief kerf, said relief kerf being disposed alongside said interference kerf, and being spaced a predetermined distance from the closer outer edge of said secondary main kerf, said laterally-offset distance between said interference kerf and said secondary main kerf being substantially equal to the width of said secondary main kerf, the length of said relief kerf being substantially equal to, but slightly longer than, the length of said interference kerf;(c) a lower, dimensionally-stable plate which has been laser cut in a series of tertiary main kerfs which is identical to said series of primary main kerfs;(d) a plurality of steel rules each of which extend downwardly through an associated one of said series of primary main kerfs and each of which extend downwardly through, and are selectively-releasably-secured within an associated one of said series of secondary main kerfs in said intermediate plate and extend into, and repose within, an associated one of said series of tertiary main kerfs in said lower plate; and(e) means rigidly securing said upper, dimensionally-stable plate, said intermediate synthetic plastic plate and said lower dimensionally-stable plate together in a dimensionally-stable manner, thereby to provide a monolithic unit.