In a device for double folding leaves, the device is provided with two conveyor belts that are located against one another such that leaves can be clasped between the conveyor belts with the exception of a strip that protrudes between the conveyor belts, whereby the conveyor belts are aligned with respect to one another along the side of the strip and with two or more folding elements along the conveyor belts that can fold the aforementioned strip, whereby the device. is equipped such that leaves are guided with their strip alongside the folding elements by the driving of the conveyor belts, whereby at least one folding element folds the strip in one direction and at least one folding element folds the strip in the other direction.

A sheet processing apparatus includes a pressing unit including a first pressing member and a second pressing member. The pressing unit is configured to sandwich and press a fold part of a folded sheet bundle between the first pressing member and the second pressing member. The sheet processing apparatus also includes a moving unit configured to move a position pressed by the pressing unit in a direction of a fold of the sheet bundle. A position pressed by the first pressing member on the sheet bundle and another position pressed by the second pressing member on the sheet bundle are shifted with respect to each other in the direction of the fold of the sheet bundle.

A container comprising a first side-panel section separated from a second side-panel section. Each of the first and second side-panel sections includes a side portion fold line extending laterally across the side-panel sections, such that each side-panel section presents two side portions. Furthermore, the container includes a pair of end flaps extending along lateral edges of the first and second side-panel sections and separated from the side-panel sections via primary fold lines, with the end flaps operable to connect the first and second side-panel sections together. The container is configured to be erected from a knockdown configuration by folding together the first side-panel section and the second side-panel section, and extending the first side-panel section and the second side-panel section away from each other such that the container forms a rectangular perimeter.

A sheet processing apparatus that is capable of properly performing fold line processing at a position depending on a sheet bundle. In a sheet processing apparatus, sheets sequentially received from an image forming apparatus are stacked on a bookbinding processing tray to form a sheet bundle. The sheet bundle is folded at the center thereof, and is conveyed to a processing position. A press unit moves along a fold line portion of the sheet bundle to thereby perform flattening processing for flattening the fold line portion by pressing the fold line portion from a direction orthogonal to a thickness direction. A first pressing strength set by a user using the image forming apparatus and the second pressing strength acquired information on the sheet bundle are compared with each other, and the processing position is determined based on a result of the comparison.

A recording material fold enhancing device includes a pressing unit that includes one or more recessed portions and one or more protrusions, and that presses a fold of a recording material; a supporting unit that includes one or more recessed portions and one or more protrusions, and that supports the fold of the recording material; and a driving unit that moves the pressing unit and the supporting unit along a direction in which the fold of the recording material is formed. A portion of the fold of the recording material is interposed between the one or more recessed portions of the pressing unit and the one or more protrusions of the supporting unit, and another portion of the fold of the recording material is interposed between the one or more protrusions of the pressing unit and the one or more recessed portions of the supporting unit.

A container comprising a first side-panel section separated from a second side-panel section. Each of the first and second side-panel sections includes a side portion fold line extending laterally across the side-panel sections, such that each side-panel section presents two side portions. Furthermore, the container includes a pair of end flaps extending along lateral edges of the first and second side-panel sections and separated from the side-panel sections via primary fold lines, with the end flaps operable to connect the first and second side-panel sections together. The container is configured to be erected from a knockdown configuration by folding together the first side-panel section and the second side-panel section, and extending the first side-panel section and the second side-panel section away from each other such that the container forms a rectangular perimeter.

A sheet processing apparatus includes a pressing unit and a shifting unit. The pressing unit has a protrusion and presses the protrusion against a fold section of a sheet. The fold section extends in one direction. The shifting unit moves at least one of the protrusion of the pressing unit and the sheet so as to shift a pressing position, at which the fold section is pressed by the protrusion, in the one direction or in a direction opposite to the one direction.

A converting apparatus operates to transfer a folded absorbent article from a first carrier apparatus to a second carrier apparatus. The converting apparatus includes a transfer apparatus and a guide member located adjacent to the transfer apparatus, forming a gap there between. The transfer apparatus includes a frame that is rotatable about a first axis of rotation and a transfer member that is rotatable about a second axis of rotation. The transfer member defines a receiving surface and the guide member defines a guide surface. The guide surface converges toward the receiving surface. The frame advances the absorbent article in a machine direction through the gap. While advancing absorbent article advances through the gap, the transfer member rotates the absorbent article about the second axis of rotation. The guide member includes side seam tuckers that are adapted to tuck the side seams of the absorbent article.

A converting apparatus operates to transfer a folded absorbent article from a first carrier apparatus to a second carrier apparatus. The converting apparatus includes a transfer apparatus and a guide member located adjacent to the transfer apparatus, forming a gap there between. The transfer apparatus includes a frame that is rotatable about a first axis of rotation and a transfer member that is rotatable about a second axis of rotation. The transfer member defines a receiving surface and the guide member defines a guide surface. The guide surface converges toward the receiving surface. The frame advances the absorbent article in a machine direction through the gap. While advancing absorbent article advances through the gap, the transfer member rotates the absorbent article about the second axis of rotation. The guide member includes side seam tuckers that are adapted to tuck the side seams of the absorbent article.

A creasing device is provided that includes a counter-rotating male drum and female drum. The male drum carries a conventional creasing ring with a central rib flanked by shoulders. The female drum comprises a central channel aligned with the creasing rib on the male drum; and a pair of projecting lateral ribs on each side of the central channel that are aligned with the shoulders on the male drum. The lateral ribs press a sheet of the card or paper stock against the shoulders of the creasing ring to better define the edges of the crease and to reduce the tendency of a printed coating on the stock to crack during subsequent folding. The pair of lateral ribs may be provided by a pair of inserts. Alternatively, both ribs and the central channel may be provided by a single insert.