An electric stapler includes a binding unit configured to perform binding processing on a sheet bundle by sequentially executing a clamping process of clamping the sheet bundle, a penetration process of penetrating a staple through the clamped sheet bundle, and a clinching process of pressing leg portions of the staple penetrating through the sheet bundle, a motor configured to drive the binding unit, and a controller configured to control the motor. The controller is configured to control the motor to execute the clamping on the sheet bundle or the pressing on the leg portions multiple times in the clamping process.

An electric stapler includes a binding unit configured to perform binding processing on a sheet bundle by sequentially executing a clamping process of clamping the sheet bundle, a penetration process of penetrating a staple through the clamped sheet bundle, and a clinching process of pressing leg portions of the staple penetrating through the sheet bundle, a motor configured to drive the binding unit, and a controller configured to control the motor. The controller is configured to control the motor to execute the clamping on the sheet bundle or the pressing on the leg portions multiple times in the clamping process.

The invention relates to a device for stapling printed products, preferably automatically, comprising a stapling head for driving a staple through a printed-product back and a bender for bending the open ends of the staple. Said device is characterized in that the stapling head has a modular design, wherein the stapling head comprises a driving tool (1) and a driving-tool holder (2) for equipping with the driving tool, and wherein the driving tool can be fastened to the driving-tool holder in an exchangeable manner, e.g., by means of locking bolts (3) fastened to a crossmember (4) or by means of a groove (5)/feather-key connection. The invention further relates to a corresponding stapling head.

The invention relates to a device for stapling printed products, preferably automatically, comprising a stapling head for driving a staple through a printed-product back and a bender for bending the open ends of the staple. Said device is characterized in that the stapling head has a modular design, wherein the stapling head comprises a driving tool (1) and a driving-tool holder (2) for equipping with the driving tool, and wherein the driving tool can be fastened to the driving-tool holder in an exchangeable manner, e.g., by means of locking bolts (3) fastened to a crossmember (4) or by means of a groove (5)/feather-key connection. The invention further relates to a corresponding stapling head.

An electric stapler is provided with: a base (B); and a stapler main body (1) arranged on the base (B). The stapler main body (1) is provided with: a driver unit (2) including a driver for driving a staple (S) to pierce through sheets of paper (P); a clincher unit (3) including a clincher for clinching the driven staple; and a table (4) provided on one of the driver unit (2) and the clincher unit (3). The stapler main body (1) is supported to be displacable with respect to the base (B). The table (4) is configured to be movable between a first position and a second position apart from the first position in a direction where the driver drives the staple, in accordance with a displacement of the stapler main body (1) with respect to the base (B).

An electric stapler is provided with: a base (B); and a stapler main body (1) arranged on the base (B). The stapler main body (1) is provided with: a driver unit (2) including a driver for driving a staple (S) to pierce through sheets of paper (P); a clincher unit (3) including a clincher for clinching the driven staple; and a table (4) provided on one of the driver unit (2) and the clincher unit (3). The stapler main body (1) is supported to be displacable with respect to the base (B). The table (4) is configured to be movable between a first position and a second position apart from the first position in a direction where the driver drives the staple, in accordance with a displacement of the stapler main body (1) with respect to the base (B).

An electric stapler includes: a binding part configured to bind a sheet bundle by striking out a staple having a crown portion and leg portions; and a first guide part configured to guide the sheet bundle to the binding part, and a second guide part facing the first guide part. The first guide part and the second guide part face each other at a distance. The first guide part and the second guide part are opened therebetween as both sides along a length direction of the crown portion, and one side away from the binding part are coupled each other. Lengths from end portions on one side, which are away from the binding part along the direction orthogonal to the length direction of the crown portion, of the first guide part and the second guide part to the binding part are 15 mm or longer.

An electric stapler includes: a binding part configured to bind a sheet bundle by striking out a staple having a crown portion and leg portions; and a first guide part configured to guide the sheet bundle to the binding part, and a second guide part facing the first guide part. The first guide part and the second guide part face each other at a distance. The first guide part and the second guide part are opened therebetween as both sides along a length direction of the crown portion, and one side away from the binding part are coupled each other. Lengths from end portions on one side, which are away from the binding part along the direction orthogonal to the length direction of the crown portion, of the first guide part and the second guide part to the binding part are 15 mm or longer.

An electric stapler includes a clamp part that is configured to include a first wall portion and a second wall portion for gripping a paper bundle, a penetration part that causes a staple to penetrate the paper bundle gripped by the clamp part, a clinch part that bends the staple penetrating the paper bundle to bind the paper bundle, a gripping release detection unit that detects that the paper bundle is released from gripping after the first wall portion moves in the direction of separating from the second wall portion from a state where the paper bundle is gripped by the clamp part; and an output unit that, after it is detected that the paper bundle is released from gripping of the clamp part, outputs a gripping release signal indicating that the paper bundle is released from gripping of the clamp part to an outside.

An electric stapler is configured to perform binding processing including a plurality of processes. The electric stapler includes: a binding unit configured to execute the binding processing for a sheet bundle; a motor configured to drive the binding unit; and a control unit configured to control the motor. The control unit is configured to control the motor; thereby adjusting processing times of the processes so that a binding processing time after the binding processing by the binding unit starts until the binding processing is completed falls within a predetermined range.