Paper folding device
AssigneeHorizon Inc.
InventorsMasaaki Shimizu, Akira Aihara
Life of this patent
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Abstract
A paper folding device wherein two wing members are supported for pivotal movement between an open and a closed position, with a gap formed between the two wing members in the closed position. A sheet of paper to be folded is fed into the gap by rollers until the forward edge of the paper hits an adjustable stopper in the gap, so that as the sheet is farther moved by the rollers, a portion of the sheet outside the gap is bent, and the bent portion is nipped and then folded by the rollers. A sound absorber is so arranged adjacent each of the two wing members so as to absorb the sound caused by the forward edge of the sheet of paper striking the stopper inside the gap.
Claims7
A device for folding a sheet of paper, comprising:
- a pair of wing members;
- means for holding each of said wing members for pivotal movement between an open position and a closed position;
- a gap formed between said wing members in said closed position, said gap being dimensioned so that a sheet of paper to be folded may be inserted into said gap;
- a stopper disposed in the gap so as to be displaceable in the direction of movement of said sheet of paper inside said gap;
- a pair of sound absorbing members each arranged behind one of said pair of wing members for simultaneous opening and closing movement therewith;
- and
- roller means arranged adjacent the entrance of said gap for feeding a sheet of paper to be folded into said gap and folding said sheet of paper at a bent portion caused outside said gap upon hitting of the forward edge of said sheet of paper on said stopper inside said gap.
Dependencies are inferred from the claim text.