Three-side trimmer

Details Three-side trimmer Three-side trimmer

2004-09-21

2009-02-24

Ashley, Boyer D (Department: 3724)

Cutting

Tool engages work during dwell of intermittent workfeed

Work-feed element contacts and moves with work

C083S277000, C083S278000, C083S279000, C083S280000, C083S281000, C083S404000, C083S934000, C083S733000

Reexamination Certificate

active

07493840

ABSTRACT:
A three-side trimmer according to the present invention comprises a bound material feed unit (2) for feeding the bound material (1) one by one; a rotating table unit (3) for receiving the bound material (1) from the bound material feed unit (2) at a predetermined position and rotating the bound material at every predetermined angle in such a manner that the bound material is arranged at three positions of a top edge cutting position, a front edge cutting position and a bottom edge cutting position; a trimming unit (4) arranged for movement in a direction close to or away from the rotating table unit (3) between two positions of a cutting position at which the trimming unit (4) becomes close to the rotating table unit (3) so as to cut a top edge section (1a), a bottom edge section (1b) and a front edge section (1c) of the bound material (1), respectively, and a standby position at which the trimming unit (4) is away from the rotating table unit (3); trimming unit guide means (5) arranged between the rotating table unit (3) and the trimming unit (4); drive means (6) for moving the trimming unit (4) along the trimming unit guide means (5) between the cutting position and the stand-by position; a control unit (7) for controlling the operation of each of the rotating table unit (3), the trimming unit (4) and the drive means (6), whereby the trimming unit (4) moves from the standby position to the cutting position for cutting the top edge section (1a), the front edge section (1c) and the bottom edge section (1b) of the bound material (1), respectively every time the bound material (1) is arranged at the top edge cutting position, front edge cutting position and the bottom edge cutting position; and receiving position changing means for shifting the position at which the rotating table unit (3) receives die bound material (1) from the bound material feed unit (2).

REFERENCES:
patent: 5120178 (1992-06-01), Ito
patent: 5765984 (1998-06-01), Stefano et al.
patent: 7131361 (2006-11-01), Nakajima
patent: H11-042593 (1999-02-01), None
patent: 2001-096489 (2001-04-01), None
patent: 2003-071780 (2003-03-01), None
patent: 2003071779 (2003-12-01), None

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