Patent ID: 7681770

Claim:
A stapler comprising: a frame; a table which is rotatably supported on the frame; a pair of side pieces which is integrally formed on respective sides of the table in order to rotatably support the table; a first and a second locking plates which are slidable along the frame between a position in which the table is prevented from rotating and a position in which the table is allowed to rotate; and a first and a second drive cams operable to drive the first and the second locking plates respectively, wherein a first cam face formed on the first drive cam and a second cam face formed on the second drive cam are different in shape, wherein a first timing, at which the first cam face starts to drive the first locking plate to move from the position in which the table is prevented from rotating to the position in which the table is allowed to rotate is different than a second timing, at which the second cam face starts to drive the second locking plate to move from the position in which the table is prevented from rotating to the position in which the table is allowed to rotate.