Back pasting apparatus and method

A method for pasting an adhesive tape onto an edge portion of papers in a back pasting apparatus comprising:

• a base;
• frames uprightly fitted to a base;
• a paper table member installed between the frames;
• a guide rail member installed between the frames, said guide rail member having a back pasting adhesive tape guide groove extending in the longitudinal direction, the guide groove being arranged in confronted with the front edge of said paper table member, said guide rail member and said paper table member being movable back and forth, at least one of the guide rail member and the paper table member being movable up and down;
• a drive mechanism for situating the guide rail and the paper table member at the substantially same level by moving up and down one of the guide rail member and the paper table member held lower than the guide rail member and also for moving the guide rail member forward;
• and a clamp installed above the paper table member, the clamp being freely pressed against the paper table member, wherein an adhesive tape is made to stick to the back of papers and the margin of the upper and lower surface of said papers resting on the paper table member, said method comprising the steps of:
• holding one side edge of the adhesive tape in the guide groove of the guide rail;
• pressing the other side edge of the adhesive tape against an upper side edge of the papers on the paper table member by means of the clamp;
• and
• moving the guide rail forward relative to the paper table member after lowering the guide rail relative to the paper table member.

A method for bindingly applying an adhesive tape segment onto a stacked plurality of paper sheets, comprising the steps of:

• holding a first side edge of said tape segment in a tape guide member which is moveable relative to said stacked paper sheets;
• pressing a second side edge against an upper marginal edge of said stacked paper sheets in an adhering manner;
• causing relative movement of said tape segment in a downward direction relative to said stacked paper sheets;
• and
• causing relative movement of said tape segment towards said stacked paper sheets such that said first side edge of said tape segment is pulled away from said tape guide member and adheringly applied to a lower marginal edge of said stacked paper sheets.