Ricoh Company, Ltd.

Nissan Motor Company Limited

Tetsuji Watanabe

Yoshiaki Ushirogata

Hidetsugu Umezawa

Takao Takahashi

Kazuya Tsutsui

Masatoshi Hosoi

Yuichi Fujii

Nobuyoshi Seki

Yuji Ueno

Mitsuru Ichikawa

Yoshio Nitta

Sigenori Tanaka

A sheet processing apparatus comprising a center-stapling device, a center-folding device, and a stacking tray for stacking a discharged sheet or sheet bundle, staples at the center of a sheet bundle conveyer from a sheet output apparatus with the center-stapling device, folds the stapled sheet bundle into two with the center-folding device, and discharges the sheet bundle to stack on the stacking tray. Folding rollers discharge the sheet bundle folded into two by the center-folding device from the side folding into two. In this state, an opening/closing end fence orients a discharging direction of the sheet bundle folded into two downward in vertical direction, turns over the sheet bundle, and stacks the sheet bundle on a tilted lower side stacking tray.

Sheet folder with turnover and pressing device

A sheet processing apparatus includes a sheet conveying path for receiving a sheet conveyed from the outside and conveying the sheet therethrough to be discharged, a stack tray for stacking a plurality of the conveyed sheets for stapling, a stapler for stapling the plurality of the sheets stacked on the stack tray, and an output tray for receiving the discharged sheets. The sheet conveying path includes a first conveying path for guiding the conveyed sheet to the stack tray for stapling, and a second conveying path for guiding the conveyed sheet to the output tray bypassing the stack tray. The sheet processing apparatus further includes a discharging member for discharging the conveyed sheet or the sheets guided by the first conveying path or second conveying path, a discharging member switching device which selectively switches the discharging member to a closed condition for discharging the sheet or sheets by sandwiching them or to an open condition for discharging the sheet or sheets without sandwiching them, and a controller configured to control the discharging member switching device to switch the discharging member to the open condition before a tip end of the sheet being conveyed through the first conveying path reaches the discharging member.

Sheet processing apparatus with open/close switchable sheet discharging member

A sheet punch device including a punch member having a rotatable punch and a die pair that punches a hole in a sheet, a driving member that drives and rotates the punch member to punch a hole in a conveyed sheet, and in which the punch member punches holes in the conveyed sheet at plural places aligned in a sheet conveying direction. The sheet punch device further includes a sheet detecting member that is disposed upstream of the punch member in the sheet conveying direction and that detects a leading edge of the sheet being conveyed. Also included is a control device that controls the driving member such that the punch member punches a predetermined number of holes in the conveyed sheet sequentially at predetermined positions aligned in the sheet conveying direction at a predetermined time after the sheet detecting member detects a leading edge of the conveyed sheet.

Sheet punch device and a sheet punch method

A finisher for binding paper sheets sequentially driven out of an image forming apparatus. A finisher moves along an edge of a stack of sheets and curves around a corner. A pair of individualy operated gripper fingers grabs the stack of sheets and moves the stack into position for finishing.

Movable finisher device with multiple stack gripping fingers

A tack-in selvage forming apparatus for tacking in the end portion of a picked weft yarn to form a selvage structure in weaving a towel. The tack-in selvage forming apapratus is comprised of a tack-in needle which is controllably driven by a driving mechanism including a cylindrical grooved cam rotatable in timed relation to a main shaft of a loom. The grooved cam is formed at its periphery with generally annular shallow and deep cam grooves. The shallow cam groove is parallel with a plane perpendicular to the axis of the grooved cam, while the deep cam groove is curved relative to the same plane. A part of the shallow cam groove and a part of the deep cam groove is common and the same in depth. The shallow cam groove has a profile corresponding to a resting state of the tack-in needle, while the deep cam groove has a profile corresponding to a tack-in operational state of the tack-in needle. A cam follower drivingly connected to the tack-in needle is selectively put into the shallow and deep cam grooves. Thus, the tack-in needle is rested when the cam follower is in the shallow cam groove and operated to accomplish tack-in of a weft yarn end portion when the cam follower is in the deep cam groove.

Tack-in selvage forming apparatus

A tack-in system of an air jet loom, for forming a tack selvage at an edge section of a fabric. The tack-in system is comprised of a body of a tack-in device, which body is formed with a slit. The slit is located near an edge of an array of warp yarns. A weft yarn picked from a weft picking nozzle extends through the slit. The end section of the weft yarn picked and cut by a cutter is securely held in such a manner that at least a part thereof is located within the slit. A fluid jet nozzle is provided to eject a fluid jet from its opening which is located such that the fluid jet therefrom blows the weft yarn end section. The fluid jet from the fluid jet nozzle is so directed that the axis thereof crosses the cloth fell at an acute angle, thus securely pressing the weft yarn end section onto the cloth fell.

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Tokyo, Japan

Tetsuji Watanabe