Horizon International Inc.

Chuji Yamaguchi

Akira Nakajima

Jun Mochizuki

Eiji Katayama

Takakazu Hori

Ko Ouchiyama

Hitoshi Uchida

Masato Nogawa

Tetsuya Kawagoe

A guillotine cutter () of the invention is provided with a pressing block driving mechanism () positioning a pressing block () at a standby position which is spaced upwardly from a sheet bundle (), a first operating position pressing the sheet bundle by a first pressing force, and a second operating position pressing the sheet bundle by a second pressing force which is larger than the first pressing force. The pressing block is carried by a rod () through a compression spring () at the standby position, the pressing block is supported on an upper surface of the sheet bundle at the first operating position, thereby applying the first pressing force to the sheet bundle on the basis of a resultant force of a gravitational force generated by its own weight and an biasing force generated by the compression spring, and the pressing block is pushed down by an expansion portion () of the rod while the pressing block is kept being supported on the upper surface of the sheet bundle at the second operating position, thereby applying the second pressing force on the basis of a resultant force of the first pressing force and the push-down force generated by the rod.

Guillotine cutter

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

Three-side trimmer

Growing community of inventors

Shiga, Japan

Chuji Yamaguchi