Abstract: The invention provides a punching system that has a relatively simple structure to provide an apparatus reduced in overall size and having a low profile, and can produce a high-quality punched hole while conveying a sheet. The punching system includes a punching device that has a punching member moving back and forth perpendicularly to the sheet being conveyed, a frame, and a sheet conveyance mechanism. The punching device is attached to the frame by an attachment unit in such a manner that it is movable in the sheet conveyance direction. The sheet conveyance mechanism includes carry-out rollers that sandwich the downstream end of the sheet at the start of sheet punching motion of the punching member and that are installed at positions downstream from and transversely corresponding to the punching position.

Abstract: A sheet cutter is operable by one hand for maintaining a sheet on a placing table and by other hand for cutting the sheet to ensure safety of finger of the one hand. The sheet cutter includes a pressing operating member adapted to be depressed from a non-pressing position to a pressing position for maintaining the sheet on the placing table against a biasing force of a spring, and a cutting operating member for travelling a cutter unit between one end and another end of the placing table, wherein the pressing operating member and the cutting operating member are arranged at different positions with a certain interval to set their operating directions orthogonal to each other. Accordingly, a sheet on the placing table can be cut by operating the cutting operating member horizontally with the other hand while operating the pressing operating member vertically with the one hand.

Abstract: A trimming apparatus, which carries out trimming with cutter blades running from one end of a material to be cut to the other end thereof, includes an apparatus frame, a bed surface having a bed plate for the material to be cut, a first and a second guide plates disposed in parallel above and under and holding the bed surface therebetween, a first holder member slidably supported by the first guide member and holding the first cutter blade, a second holder member slidably supported by the second guide member and holding the second cutter blade, a connector which connects one of the second cutter blade and the second holder member to the first cutter blade, and a drive device which makes at least one of the first holder member and the second holder member run from one end of the material to be cut to the other end.

Abstract: A trimming apparatus trims by cutter blades running from one end of a sheet bundle to the other end thereof, includes a bed surface for the sheet bundle, cutter blades for cutting the sheet bundle supported on the bed surface, a drive device for running the cutting blades from one end of the sheet bundle to the other end thereof, a support member having a support face, and a shift device for moving the support member between a working position for the support member supporting cut sheet dust pieces and a retreating position not to hinder the cut sheet dust pieces from dropping. The shift device displaces the support face from the working position to a retreating position after the cutter blades move at a predetermined distance toward the other end of the sheet bundle from one end thereof.

Abstract: A trimming apparatus, which carries out trimming with cutter blades running from one end of a material to be cut to the other end thereof, comprises an apparatus frame, a bed surface having a bed plate for the material to be cut, a first and a second guide plates disposed in parallel above and under holding the bed surface therebetween, a first holder member slidably supported by the first guide member, and holding the first cutter blade, a second holder member slidably supported by the second guide member, and holding the second cutter blade, a connector which connects one of the second cutter blade and the second holder member to the first cutter blade, and a drive means which makes at lease one of the first holder member and the second holder member run from one end of the material to be cut to the other end.

Abstract: A trimming apparatus trims by cutter blades running from one end of a sheet bundle to the other end thereof, includes a bed surface for the sheet bundle, cutter blades for cutting the sheet bundle supported on the bed surface, a drive device for running the cutting blades from one end of the sheet bundle to the other end thereof, a support member having a support face, and a shift device for moving the support member between a working position for the support member supporting cut sheet dust pieces and a retreating position not to hinder the cut sheet dust pieces from dropping. The shift device displaces the support face from the working position to a retreating position after the cutter blades move at a predetermined distance toward the other end of the sheet bundle from one end thereof.

Abstract: A sheet hole punching device has a device frame; a plurality of punching members arranged in first and second groups, and arranged linearly on the device frame; a driving rotation shaft; a driving motor reciprocally rotating the driving rotation shaft; a gear mechanism transmitting a rotation of the driving rotation shaft; cam mechanisms converting the rotational movement; and a motor control device. The gearing mechanism includes drive gears disposed on the drive rotational shaft, and receiving gears disposed on the punching members to engage with the drive gears. The cam mechanisms include cam followers and cylindrical cams. The cylindrical cam has a V-shaped groove cam to reciprocate each of the punching members between an upper dead point and a lower dead point. The punching members are rotated in one direction to punch holes in first sheets, and subsequently rotated in a reverse direction to punch holes in following sheets.

Abstract: A sheet hole punching device has a device frame bearing-supporting a plurality of punching members, a driving rotation shaft, a drive motor, a gear mechanism transmitting a rotation of the driving rotation shaft, cam mechanisms converting the rotational movement into vertical movement, and a motor control device. The gearing mechanism includes drive gears fixed on the driving rotation shaft and receiving gears to engage with the drive gears to transmit the rotational movement to the punching members. The cam mechanism includes cylindrical cams formed integrally to the punching members and cam followers fixed to the device frame. The cylindrical cams are provided with V-shaped groove cams to reciprocate the punching members between an upper dead point and a lower dead point. The punching members are rotated in one direction to punch holes in a sheet, and subsequently rotated in a reverse direction to punch holes in a following sheet.

Abstract: A sheet hole punching device has a device frame; a plurality of punching members arranged in first and second groups, and arranged linearly on the device frame; a driving rotation shaft; a driving motor reciprocally rotating the driving rotation shaft; a gear mechanism transmitting a rotation of the driving rotation shaft; cam mechanisms converting the rotational movement; and a motor control device. The gearing mechanism includes drive gears disposed on the drive rotational shaft, and receiving gears disposed on the punching members to engage with the drive gears. The cam mechanisms include cam followers and cylindrical cams. The cylindrical cam has a V-shaped groove cam to reciprocate each of the punching members between an upper dead point and a lower dead point. The punching members are rotated in one direction to punch holes in first sheets, and subsequently rotated in a reverse direction to punch holes in following sheets.

Abstract: A sheet hole punching device has a device frame bearing-supporting a plurality of punching members, a driving rotation shaft, a drive motor, a gear mechanism transmitting a rotation of the driving rotation shaft, cam mechanisms converting the rotational movement into vertical movement, and a motor control device. The gearing mechanism includes drive gears fixed on the driving rotation shaft and receiving gears to engage with the drive gears to transmit the rotational movement to the punching members. The cam mechanism includes cylindrical cams formed integrally to the punching members and cam followers fixed to the device frame. The cylindrical cams are provided with V-shaped groove cams to reciprocate the punching members between an upper dead point and a lower dead point. The punching members are rotated in one direction to punch holes in a sheet, and subsequently rotated in a reverse direction to punch holes in a following sheet.

Abstract: A sheet hole-punching device includes a plurality of punch members, a base frame for slidably supporting the punch members in a hole-punching direction and rotationally supporting the punch members, and a drive member having a plurality of cam portions. Each punch member has a leading end with a hole-punching blade. Each cam portion engages each punch member to move the punch member in the hole-punching direction. A plurality of cam devices is also formed in the sheet hole-punching device. Each cam device is disposed between the base frame and each punch member for converting a hole-punching direction movement of the punch member into a rotational movement so as to rotate the punch member while moving in the hole-punching direction.

Abstract: A sheet stack cutter cuts sheet stacks by means of a moving cutter edge and a stationary cutter edge disposed upward and downward along a predetermined cutting-plane line. The sheet stack cutter includes a sheet loading table for supporting the sheet stack, a press device for pressing and holding the sheet stack on the sheet loading table, a moving cutter edge disposed in up and down cutting directions for cutting the sheet stack on the sheet loading table along the cutting-plane line, a stationary cutter edge disposed to the side of the sheet loading table for pressing the moving cutter edge to cut the sheet stack, and an apparatus frame furnished with the press device and the moving cutter edge. A drive device moves the moving cutter edge in up and down cutting directions.

Abstract: A sheet hole-punching device includes a plurality of punch members, a base frame for slidably supporting the punch members in a hole-punching direction and rotationally supporting the punch members, and a drive member having a plurality of cam portions. Each punch member has a leading end with a hole-punching blade. Each cam portion engages each punch member to move the punch member in the hole-punching direction. A plurality of cam devices is also formed in the sheet hole-punching device. Each cam device is disposed between the base frame and each punch member for converting a hole-punching direction movement of the punch member into a rotational movement so as to rotate the punch member while moving in the hole-punching direction.

Abstract: A sheet hole-punching device includes a punch member having a leading end with a hole-punching blade, a base frame for movably supporting the punch member in a hole-punching direction, a drive motor for driving the punch member, and a transmission device for transmitting rotational force of the drive motor to the punch member so as to rotate the punch member. The transmission device is disposed between the drive motor and the punch member. A cam device is disposed between the base frame and punch member, and converts a rotational movement of the punch member into a hole-punching direction movement so as to move the punch member in the hole-punching direction while rotating the punch member.

Abstract: A sheet stack cutter cuts sheet stacks by means of a moving cutter edge and a stationary cutter edge disposed upward and downward along a predetermined cutting-plane line. The sheet stack cutter includes a sheet loading table for supporting the sheet stack, a press device for pressing and holding the sheet stack on the sheet loading table, a moving cutter edge disposed in up and down cutting directions for cutting the sheet stack on the sheet loading table along the cutting-plane line, a stationary cutter edge disposed to the side of the sheet loading table for pressing the moving cutter edge to cut the sheet stack, and an apparatus frame furnished with the press device and the moving cutter edge. A drive device moves the moving cutter edge in up and down cutting directions.

Abstract: A cylindrical punch member equipped at the leading end thereof with a hole-punching blade is movably supported on a base frame in a hole-punching direction. A drive means is equipped that applies thrusting force to the punch member; a cam follower member disposed between the base frame and punch member engages a cam means disposed at either the base frame or punch member. An oblique cam surface inclined at a predetermined angle with regard to a hole-punching direction is equipped in cam means to give rotational drive force around an axis of rotation to the punch member that is moved in the hole-punching direction by the drive means. This configuration causes each of a plurality of cylindrical punch members to rotate around their axes of rotation when moved in a hole-punching direction by drive means thereby punching a hole in a sheet with a reduced shear force; the centrifugal force of that punch member rotation causing paper cutting debris to be scattered evenly under the punch member.