Three-side cutting apparatus

A three-side cutting apparatus which aligns a carried-in book to be cut and transfers it to a cutting position to cut the book at its top, bottom and side, comprising:

• top and bottom size setting means for receiving data on the top and bottom sizes of the book to be cut and outputting a signal indicative of the sizes;
• transverse size setting means for receiving data on the transverse size of the book and outputting a signal indicative of the transverse size;
• transfer quantity calculating means for calculating a quantity of transfer of the book to the cutting position on the basis of the signal indicative of the transverse size and outputting a signal indicative of the transfer quantity;
• top and bottom cutter means operably connected to said top and bottom size setting means for cutting the top and bottom of the book, said cutter means have a pair of opposing cutters movable toward and away from each other under control of the signal outputted from said top and bottom size setting means indicative of the top and bottom sizes and have a clamp means for fixing the position of the cutters;
• position adjusting means operably connected to said top and bottom size setting means controlled in accordance with a signal outputted from said top and bottom size setting means indicative of the top and bottom sizes for positioning said book relative to where said book is being fed in;
• aligning means operably connected to said transverse size setting means controlled by the signal outputted from said transverse size setting means indicative of the transverse size for moving an aligning position and for positioning the back of the book, wherein said aligning means has a moving member for aligning the back of said book at a substantially orthogonal direction in which said book is carried in, and a shaft which extends substantially in the direction in which said book is carried in and having an aligning member for positioning the back of said book;
• and
• feed-in means for setting a distance based on the signal indicative of a movement quantity and moving the book to a cutting position, wherein said feed-in means has a book back abutting member substantially parallel to the direction in which the book is carried in to thereby have said position adjusting means, aligning means and feed-in means align and adjust the position of said book prior to cutting.