Staple

A stapler comprising:

• a clincher unit having a clincher part configured to bend leg portions of a staple and provided on one end portion-side;
• a magazine unit having a magazine in which a staple bundle consisting of staples connected to each other is loaded, and supported on the other end portion-side of the clincher unit to be rotatable about a fulcrum shaft portion as a fulcrum with respect to the clincher unit;
• a driver unit having a driver configured to strike out a staple from the magazine and provided on one end portion-side, the other end portion-side of the driver unit being supported to be rotatable about the fulcrum shaft portion as a fulcrum with respect to the clincher unit;
• a handle unit connected to the driver unit by a transmission shaft portion provided between the fulcrum shaft portion and the driver, and configured to move the driver unit toward the clincher unit for opening and closing;
• a camshaft portion provided to any one of the clincher unit and the handle unit;
• a cam groove portion provided to the other of the clincher unit and the handle unit, configured to permit the camshaft portion to enter, and having one open end portion in a direction, in which the clincher unit and the handle unit separate from each other, to enable the camshaft portion to be inserted/pulled out;
• and
• a guide portion configured to restrict a movement path of the handle unit with respect to the clincher unit in operations of opening and closing the handle unit and the driver unit with respect to the clincher unit and the magazine unit,
• wherein a fulcrum axis of a rotation operation of the handle unit is moved as the cam groove portion is guided by the camshaft portion in accordance with the rotation operation of the handle unit.

A stapler comprising:

• a clincher unit having a clincher part configured to bend leg portions of a staple and provided on one end portion-side;
• a magazine unit having a magazine in which a staple bundle consisting of staples connected to each other is loaded, and supported on the other end portion-side of the clincher unit to be rotatable about a fulcrum shaft portion as a fulcrum with respect to the clincher unit;
• a driver unit having a driver configured to strike out a staple from the magazine and provided on one end portion-side, the other end portion-side of the driver unit being supported to be rotatable about the fulcrum shaft portion as a fulcrum with respect to the clincher unit;
• and
• a handle unit connected to the driver unit by a transmission shaft portion provided between the fulcrum shaft portion and the driver, and configured to move the driver unit toward the clincher unit for opening and closing;
• wherein the magazine unit has:
• a pusher provided to be movable along a length direction of the magazine,
• a pusher spring for pressing the pusher toward a magazine front wall part of the magazine, and
• a pusher band having one end portion attached to the pusher and the other end portion attached to the driver unit, and configured to connect the pusher and the driver unit, and
• wherein in a state where the pusher is retreated by the pusher band and is moved to a most retreat position in an operation of opening the handle unit and the driver unit with respect to the clincher unit and the magazine unit,
• a length between an inner surface-side of the magazine front wall part and the pusher is 75 mm or longer,
• a length of the magazine is 90 mm or longer and 100 mm or shorter,
• a length of the pusher band is 51 mm or longer and 61 mm or shorter,
• a length from the fulcrum shaft portion to an attachment position of the pusher band to the driver unit is 41 mm or longer and 50 mm or shorter, and
• an entire length of the stapler is 105 mm or longer and 125 mm or shorter.