A sheet processing apparatus is provided with a carry-in path for guiding a sheet from a carry-in entrance, a shift roller provided in the carry-in path to transport the sheet, while shifting, a carry-in roller positioned on the downstream side of the shift roller to carry the sheet from the carry-in path toward a collection tray, and a punch shift unit provided on the upstream side of the carry-in roller to process an end portion of the sheet in a processing position. The punch shift unit shifts in the same direction as the shift roller, a shift amount of the punch shift unit is set to be equal to a shift amount of the shift roller or more, and the end portion processing unit is thereby already positioned in an end portion processing position or a position near the processing position after shifting the sheet.

A sheet processing apparatus includes a carry-in path for guiding a sheet from a carry-in entrance, a shift roller provided in the carry-in path to relay and transport the sheet, a first transport path positioned on the downstream side of the relay roller to transport the sheet from the carry-in path to a first collection tray, and a second transport path branched off from the carry-in path to transport the transported sheet to a second collection tray. The relay roller shifts the sheet in the direction crossing the transport direction, while the shift by the relay roller is performed after the sheet front end enters the first transport path or second transport path. Thus, it is possible to provide a relatively compact sheet processing apparatus capable of shifting in sorting and shifting sheets, without increasing the carry-in path.

A tool for inflating a chamber (50) in an article composed at least partially of polymer layers, such as thermoplastic layers. The tool can allow for forming an aperture in a polymer layer (350), inflating a chamber (50) or volume (130) in fluid communication with the aperture, and then welding or sealing the chamber (50) so that the inflation fluid is substantially retained in the chamber (50) and/or does not escape via the aperture. In various aspects, the formation of the aperture, inflation of the chamber (50), and sealing of the chamber (50) or aperture can be performed by a single tool and/or based on a single registration of the thermoplastic article with a tool. In some aspects, formation of the aperture is enabled in part by using a punch (100, 201, 205) with a cupped surface (341) that allows the top layer of a thermoplastic article to be breached without forming a hole in at least one lower layer (350).

A sheet processing apparatus includes, a punch unit configured to perform punching processing on a sheet conveyed from one of a plurality of sheet storing units capable of storing a sheet or a pre-punched sheet, an input unit configured to input a number of holes punched in the pre-punched sheet stored in one of the sheet storing units, an acquisition unit configured to acquire a number of holes that can be punched by the punch unit, a determination unit configured to determine whether the input number of holes coincides with the acquired number of holes that can be punched, and a control unit configured to display a predetermined warning in a case where the determination unit determines that the input number of holes does not coincide with the acquired number of holes that can be punched.

A sheet processing apparatus includes, a punch unit configured to perform punching processing on a sheet conveyed from one of a plurality of sheet storing units capable of storing a sheet or a pre-punched sheet, an input unit configured to input a number of holes punched in the pre-punched sheet stored in one of the sheet storing units, an acquisition unit configured to acquire a number of holes that can be punched by the punch unit, a determination unit configured to determine whether the input number of holes coincides with the acquired number of holes that can be punched, and a control unit configured to display a predetermined warning in a case where the determination unit determines that the input number of holes does not coincide with the acquired number of holes that can be punched.

A paper punch includes a plurality of punch seats movably disposed along a slide board mounted on a base, a press board pivotably connected to the base to press punch heads of the punch seats, and a plurality of control members respectively disposed on the punch seats and operable to releasably lock the punch seats on the base. Each punch seat has a force transmitting member movably disposed on a die holder to transmit a pressing force of the press board so as to press the punch head downwardly to perform a firm and stable punching operation.

A sheet post-processor of this disclosure is provided with a punching device and a registration roller. The punching device is capable of forming punch holes along a first side end edge of a sheet parallel to a sheet width direction orthogonal to a sheet conveyance direction and a second side end edge of the sheet parallel to the sheet conveyance direction. The registration roller is disposed downstream of the punching device in the sheet conveyance direction. The punching device includes a punch unit that forms punch holes through a sheet and an edge sensor that detects the second side end edge of a sheet. In a case of forming punch holes along the second side end edge of a sheet, without skewing of the sheet being corrected by the registration roller, the edge sensor detects the second side end edge, while the punch unit forms punch holes through the sheet.

In an example implementation, a corner punch device includes a base and a handle rotatably coupled to the base. A die piece is fixed to the base, and a punch piece is moveable by the handle toward the die piece. The punch piece comprises multiple punch profiles that are active to punch distinct shapes into separate media sheets simultaneously.

In an example implementation, a corner punch device includes a base and a handle rotatably coupled to the base. A die piece is fixed to the base, and a punch piece is moveable by the handle toward the die piece. The punch piece comprises multiple punch profiles that are active to punch distinct shapes into separate media sheets simultaneously.

In a first punching mode, a control portion displaces a support member from a first-path-side end side to a second-path-side end side, and causes a first punching portion on the first-path-side end side to operate in a state where the support member has reached a first target position. In a second punching mode, the control portion displaces the support member from the second-path-side end side to the first-path-side end side, and causes a second punching portion on the second-path-side end side to operate in a state where the support member has reached a second target position. The first and second target positions are based on positions of the support member at points of time when edges on the first-path-side end side and the second-path-side end side are detected by the first sheet sensor and the second sheet sensor, respectively.